Cooperative Institute for Research in Environmental Sciences

Robert E. Sievers

Robert E. Sievers

Research Interests

Professor Sievers is studying analytical chemistry, pharmaceutical science, aerosols, microparticles and nanoparticles, inhalable vaccines and antibiotics, and supercritical fluids.

For more than 40 years the Sievers research group has conducted fundamental and applied studies of the formation of nanoparticle and microparticle aerosols and innovative methods for synthesis, purification, characterization of useful materials. Carbon dioxide-assisted nebulization provides superior aerosols. Sievers is collaborating with medical professionals and engineers to develop new methods for delivery of aerosol particles useful in direct and painless administration of therapeutic drugs and vaccines by inhalation and by sublingual delivery. The drugs are dissolved or suspended in supercritical fluids, and unusually small aerosol particles are formed by rapid decompression to facilitate delivery of the aerosol particles to the alveoli and to allow rapid uptake by the lungs and respiratory tracts. Formation of fine aerosols is expected to become increasingly important in the treatment or vaccination against measles, influenza, infections, stress, COPD, and asthma.

The simultaneous stabilization, drying, and micronization of vaccines, antibodies, proteins, antibiotics, and anti-inflammatory pharmaceuticals and other products of the biotechnology revolution are under study. Two of the fourteen "Grand Challenges" identified by the Bill and Melinda Gates Foundation and the NIH Foundation as critical to world health have been addressed by the Sievers group: needle-free administration of vaccines (by pulmonary or nasal aerosols), and vaccines stable for long term storage.

In technology transfer, Sievers Instruments, Inc. and successor companies, Ionics-Sievers and GE ANalytical, have manufactured 30,000 detectors and analyzers for 10,000 users for applications in trace analysis for environmental, water treatment, energy, pharmaceutical, and other applications from 1984 until the present. 

Current Research

Development of needle-free and water-free inhalable dry powder aerosol vaccines and pharmaceuticals

Inhalable dry powder aerosol vaccines and pharmaceuticals require no needle, no purified water for reconstitution, and no electricity or batteries for delivery, which makes them especially useful in developing countries. Working in Prof. Sievers’ Global Health Program in CIRES, a team developed the first dry powder aerosol measlesvaccine to complete Phase I clinical trials without any adverse events.

We have invented and developed a special form of spray drying, Carbon Dioxide Assisted Nebulization with a Bubble Dryer (CAN-BD), that produces aerosol microparticles small enough (1-5 microns aerodynamic diameter) to be distributed throughout the moist respiratory tracts of humans and test animals in which diseases can be prevented or alleviated.

This dry powder aerosol vaccine has been administered to 40 human volunteers without any serious adverse events observed while following the patients 180 days after this Phase I safety clinical trial began in India. There have been recent outbreaks of measles in Italy and Eastern Europe within the last 6 months due to war in the Middle East and unvaccinated refugees spreading active virus to populations not adequately protected by conventional forms of vaccination in times of turmoil. While the funds provided for clincal trials for safety in adults by the Gates Foundation and the Centers for Disease Control (CDC) were adequate earlier, these were exhausted before tests in children could be undertaken. 

Publications

Click here for list of publications



Robert Sievers demonstrates easy vaccination by inhalation of dry powder aerosol vaccines in a needle-free inhaler that he co-invented. Photo credit: Glen Asakawa/CU Boulder

Honors and Awards

  • Tswett Chromatography Medallist, 1981
  • American Chemical Society Colorado Section Award, 1985
  • Dimick Award in Chromatography, 1992
  • Thomas Jefferson Award, 2001
  • Robert Stearns Award, 2003
  • Pinnacle of Inventorship Award, 2004
  • ACS Astellas Prize in Public Health, 2008
  • Governor's Award for Research Impact, 2009

View Publications

  • Manion, JR; Cape, SP; McAdams, DH; Rebits, LG; Evans, S; Sievers, RE (2012), Inhalable Antibiotics Manufactured Through Use of Near-Critical or Supercritical Fluids. Aerosol Sci. Technol. Version: 1 46 (4) 403-410, issn: 0278-6826, ids: 912CG, doi: 10.1080/02786826.2011.634453
  • Lin, WH; Griffin, DE; Rota, PA; Papania, M; Cape, SP; Bennett, D; Quinn, B; Sievers, RE; Shermer, C; Powell, K; Adams, RJ; Godin, S; Winston, S (2011), Successful respiratory immunization with dry powder live-attenuated measles virus vaccine in rhesus macaques. Proc. Natl. Acad. Sci. U. S. A. Version: 1 108 (7) 2987-2992, issn: 0027-8424, ids: 721TB, doi: 10.1073/pnas.1017334108, PubMed ID: 21282608
  • Kisich, KO; Higgins, MP; Park, I; Cape, SP; Lindsay, L; Bennett, DJ; Winston, S; Searles, J; Sievers, RE (2011), Dry powder measles vaccine: Particle deposition, virus replication, and immune response in cotton rats following inhalation. Vaccine Version: 1 29 (5) 905-912, issn: 0264-410X, ids: 720QS, doi: 10.1016/j.vaccine.2010.10.020, PubMed ID: 20974303
  • Cape, SP; Villa, JA; Huang, ETS; Yang, TH; Carpenter, JF; Sievers, RE (2008), Preparation of Active Proteins, Vaccines and Pharmaceuticals as Fine Powders using Supercritical or Near-Critical Fluids. Pharm. Res. Version: 1 25 (9) 1967-1990, issn: 0724-8741, ids: 337AR, doi: 10.1007/s11095-008-9575-6, PubMed ID: 18581212
  • Burger, JL; Cape, SP; Braun, CS; Mcadams, DH; Best, JA; Bhagwat, P; Pathak, P; Rebits, LG; Sievers, RE (2008), Stabilizing formulations for inhalable powders of live-attenuated measles virus vaccine. J. Aerosol Med. Pulm. Drug Deliv. Version: 1 21 (1) 25-34, issn: 1941-2711, ids: 329HX, doi: 10.1089/jamp.2007.0658, PubMed ID: 18518829
  • Kissmann, J; Ausar, SF; Rudolph, A; Braun, C; Cape, SP; Sievers, RE; Federspiel, MJ; Joshi, SB; Middaugh, CR (2008), Stabilization of measles virus for vaccine formulation. Hum. Vaccines Version: 1 4 (5) 350-359, issn: 1554-8619, ids: 354KK, doi: 10.4161/hv.4.5.5863, PubMed ID: 18382143
  • Rebits, LG; Bennett, DJ; Bhagwat, PA; Morin, A; Sievers, RE (2007), Method for quantifying the sample collected by an Andersen Cascade Impactor using total organic carbon analysis. J. Aerosol. Sci. Version: 1 38 (12) 1197-1206, issn: 0021-8502, ids: 243MN, doi: 10.1016/j.jaerosci.2007.09.005
  • Villa, JA; Huang, ETS; Cape, SP; Sievers, RE (2005), Synthesis of composite microparticles with a mixing cross. Aerosol Sci. Technol. Version: 1 39 (6) 473-484, issn: 0278-6826, ids: 947LA, doi: 10.1080/027868290964432
  • Huang, ETS; Chang, H; Liang, CD; Sievers, RE (2003), Fine particle pharmaceutical manufacturing using dense carbon dioxide mixed with aqueous or alcoholic solutions. Version: 1 SUPERCRITICAL CARBON DIOXIDE: SEPARATIONS AND PROCESSES Symposium on Separations and Processes Using Supercritical Carbon Dioxide held at the 223rd American-Chemical-Society National Meeting 860 324-338, ORLANDO, FLORIDA, APR 07-11, 2002, Ed. Gopalan, AS; Wai, CM; Jacobs, HK, issn: 0097-6156, ids: BX55A, isbn: 0-8412-3836-7
  • Sievers, RE; Huang, ETS; Villa, JA; Engling, G; Brauer, PR (2003), Micronization of water-soluble or alcohol-soluble pharmaceuticals and model compounds with a low-temperature Bubble Dryer (R). J. Supercrit. Fluids Version: 1 6th Conference on Supercritical Fluids and Their Applications 26 (1) 9-16, MAIORI, ITALY, SEP 09-12, 2001, Art. No. PII S0896-8446(02)00188-2, issn: 0896-8446, ids: 675UP, doi: 10.1016/S0896-8446(02)00188-2
  • Andersen, WC; Noll, BC; Sellers, SP; Whildin, LL; Sievers, RE (2002), Characterization and structures of the 2,2,7-trimethyl-3,5-octanedionate chelates of cerium(IV) and terbium(III). Inorg. Chim. Acta Version: 1 336 105-110, Art. No. PII S0020-1693(02)00873-3, issn: 0020-1693, ids: 577ZC, doi: 10.1016/S0020-1693(02)00873-3
  • Sellers, SP; Clark, GS; Sievers, RE; Carpenter, JF (2001), Dry powders of stable protein formulations from aqueous solutions prepared using supercritical CO2-assisted aerosolization. J. Pharm. Sci. Version: 1 90 (6) 785-797, issn: 0022-3549, ids: 440ZK, doi: 10.1002/jps.1032, PubMed ID: 11357179
  • Andersen, WC; Sievers, RE; Lagalante, AF; Bruno, TJ (2001), Solubilities of cerium(IV), terbium(III), and iron(III) ss-diketonates in supercritical carbon dioxide. J. Chem. Eng. Data Version: 1 14th Symposium on Thermophysical Properties 46 (5) 1045-1049, UNIV COLORADO, BOULDER, COLORADO, JUN 25-30, 2000, issn: 0021-9568, ids: 476EN, doi: 10.1021/je000257c
  • Sievers, RE; Huang, ETS; Villa, JA; Kawamoto, JK; Evans, MM; Brauer, PR (2001), Low-temperature manufacturing of fine pharmaceutical powders with supercritical fluid aerosolization in a Bubble Dryer (R). Pure Appl. Chem. Version: 1 IUPAC CHEMRAWN 14th Conference on Green Chemistry: Toward Environmentally Benign Processes and Products 73 (8) 1299-1303, BOULDER, COLORADO, JUN 09-13, 2001, issn: 0033-4545, ids: 497NJ, doi: 10.1351/pac200173081299
  • Sievers, RE; Milewski, PD; Sellers, SP; Miles, BA; Korte, BJ; Kusek, KD; Clark, GS; Mioskowski, B; Villa, JA (2000), Supercritical and near-critical carbon dioxide assisted low-temperature bubble drying. Ind. Eng. Chem. Res. Version: 1 5th International Symposium on Supercritical Fluids (ISSF 2000) 39 (12) 4831-4836, ATLANTA, GEORGIA, APR, 2000, issn: 0888-5885, ids: 381GA, doi: 10.1021/ie000190m
  • Sievers, RE; Karst, U; Milewski, PD; Sellers, SP; Miles, BA; Schaefer, JD; Stoldt, CR; Xu, CY (1999), Formation of aqueous small droplet aerosols assisted by supercritical carbon dioxide. Aerosol Sci. Technol. Version: 1 30 (1) 3-15, issn: 0278-6826, ids: 162CG, doi: 10.1080/713834046
  • Frazey, PA; Barkley, RM; Sievers, RE (1998), Solid phase microextraction with temperature-programmed desorption for the analysis of iodination disinfection byproducts. Anal. Chem. Version: 1 70 (3) 638-644, issn: 0003-2700, ids: YV310, doi: 10.1021/ac970395d, PubMed ID: 9470491
  • Xu, CY; Watkins, BA; Sievers, RE; Jing, XP; Trowga, P; Gibbons, CS; Vecht, A (1997), Submicron-sited spherical yttrium oxide based phosphors prepared by supercritical CO2-assisted aerosolization and pyrolysis. Appl. Phys. Lett. Version: 1 71 (12) 1643-1645, issn: 0003-6951, ids: XW907, doi: 10.1063/1.120004
  • Veltkamp, PR; Hansen, KJ; Barkley, RM; Sievers, RE (1996), Principal component analysis of summertime organic aerosols at Niwot Ridge, Colorado. J. Geophys. Res.-Atmos. Version: 1 5th International Conference on Carbonaceous Particles in the Atmosphere 101 (D14) 19495-19504, LAWRENCE BERKELEY NATL LAB, BERKELEY, CA, AUG 23-26, 1994, issn: 2169-897X, ids: VE258, doi: 10.1029/95JD01749
  • Veltkamp, PR; Hansen, KJ; Barkley, RM; Sievers, RE (1996), Chromatographic measurement of molecular markers of sources of atmospheric aerosol particles. Environ. Geochem. Health Version: 1 18 (2) 77-80, issn: 0269-4042, ids: UP496, doi: 10.1007/BF01771135, PubMed ID: 24194378
  • DUNHAM, AJ; BARKLEY, RM; SIEVERS, RE (1995), AQUEOUS NITRITE ION DETERMINATION BY SELECTIVE REDUCTION AND GAS-PHASE NITRIC-OXIDE CHEMILUMINESCENCE. Anal. Chem. Version: 1 67 (1) 220-224, issn: 0003-2700, ids: PZ536, doi: 10.1021/ac00097a033, PubMed ID: 11536661
  • HANSEN, KJ; NANSEN, BN; CRAVENS, E; SIEVERS, RE (1995), SUPERCRITICAL-FLUID EXTRACTION GAS-CHROMATOGRAPHIC ANALYSIS OF ORGANIC-COMPOUNDS IN ATMOSPHERIC AEROSOLS. Anal. Chem. Version: 1 67 (19) 3541-3549, issn: 0003-2700, ids: RX222, doi: 10.1021/ac00115a025
  • LAGALANTE, AF; HANSEN, BN; BRUNO, TJ; SIEVERS, RE (1995), SOLUBILITIES OF COPPER(II) AND CHROMIUM(III) BETA-DIKETONATES IN SUPERCRITICAL CARBON-DIOXIDE. Inorg. Chem. Version: 1 34 (23) 5781-5785, issn: 0020-1669, ids: TD990, doi: 10.1021/ic00127a015
  • BUHR, SM; BUHR, MP; FEHSENFELD, FC; HOLLOWAY, JS; KARST, U; NORTON, RB; PARRISH, DD; SIEVERS, RE (1995), DEVELOPMENT OF A SEMICONTINUOUS METHOD FOR THE MEASUREMENT OF NITRIC-ACID VAPOR AND PARTICULATE NITRATE AND SULFATE. Atmos. Environ. Version: 1 29 (19) 2609-2624, issn: 1352-2310, ids: RW918, doi: 10.1016/1352-2310(95)00171-T
  • HANSEN, BN, AF LAGALANTE, RE SIEVERS and TJ BRUNO (1994), HIGH-PRESSURE EQUILIBRIUM CELL FOR SOLUBILITY MEASUREMENTS IN SUPERCRITICAL FLUIDS. Rev. Sci. Instrum. Version: 1 65 (6) 2112-2114, issn: 0034-6748, ids: NU854, doi: 10.1063/1.1144821
  • RYERSON, TB; BARKLEY, RM; SIEVERS, RE (1994), SELECTIVE CHEMILUMINESCENCE DETECTION OF SULFUR-CONTAINING-COMPOUNDS COUPLED WITH NITROGEN-PHOSPHORUS DETECTION FOR GAS-CHROMATOGRAPHY. J. Chromatogr. A Version: 1 670 (2-Jan) 117-126, issn: 0021-9673, ids: NR679, doi: 10.1016/0021-9673(94)80286-6
  • HUANG, L; TURNIPSEED, SB; HALTIWANGER, RC; BARKLEY, RM; SIEVERS, RE (1994), SYNTHESIS AND STRUCTURES OF VOLATILE MONONUCLEAR AND PENTANUCLEAR CHELATES OF BARIUM. Inorg. Chem. Version: 1 33 (4) 798-803, issn: 0020-1669, ids: MX860, doi: 10.1021/ic00082a029
  • Hansen, Kris and Robert E. Sievers (1994), Incorporating undergraduates into graduate research in environmental science. Version: 1 Abstracts of Papers American Chemical Society 207th National Meeting of the American Chemical Society207th National Meeting of the American Chemical Society 207 (2-Jan) 111-ANYL 111, San Diego, California, USASan Diego, California, USA, March 13-17, 1994March 13-17, 1994, issn: 0065-7727
  • RYERSON, TB; DUNHAM, AJ; BARKLEY, RM; SIEVERS, RE (1994), SULFUR-SELECTIVE DETECTOR FOR LIQUID-CHROMATOGRAPHY BASED ON SULFUR MONOXIDE-OZONE CHEMILUMINESCENCE. Anal. Chem. Version: 1 66 (18) 2841-2851, issn: 0003-2700, ids: PG636, doi: 10.1021/ac00090a009
  • HYBERTSON, BM; REPINE, JE; BEEHLER, CJ; RUTLEDGE, KS; LAGALANTE, AF; SIEVERS, RE (1993), PULMONARY DRUG-DELIVERY OF FINE AEROSOL-PARTICLES FROM SUPERCRITICAL FLUIDS. J. Aerosol Med.-Depos. Clear. Eff. Lung Version: 1 6 (4) 275-286, issn: 0894-2684, ids: MQ794, doi: 10.1089/jam.1993.6.275
  • SIEVERS, RE; TURNIPSEED, SB; HUANG, L; LAGALANTE, AF (1993), VOLATILE BARIUM BETA-DIKETONATES FOR USE AS MOCVD PRECURSORS. Coord. Chem. Rev. Version: 1 128 (2-Jan) 285-291, issn: 0010-8545, ids: MD906, doi: 10.1016/0010-8545(93)80035-4
  • HANSEN, BN; HYBERTSON, BM; BARKLEY, RM; SIEVERS, RE (1992), SUPERCRITICAL FLUID TRANSPORT CHEMICAL-DEPOSITION OF FILMS. Chem. Mat. Version: 1 4 (4) 749-752, issn: 0897-4756, ids: JG698, doi: 10.1021/cm00022a003
  • BUHR, MP; TRAINER, M; PARRISH, DD; SIEVERS, RE; FEHSENFELD, FC (1992), ASSESSMENT OF POLLUTANT EMISSION INVENTORIES BY PRINCIPAL COMPONENT ANALYSIS OF AMBIENT AIR MEASUREMENTS. Geophys. Res. Lett. Version: 1 19 (10) 1009-1012, issn: 0094-8276, ids: HW344, doi: 10.1029/92GL01020
  • BROOKS, KC; TURNIPSEED, SB; BARKLEY, RM; SIEVERS, RE; TULCHINSKY, V; KALOYEROS, AE (1992), SYNTHESIS AND CHARACTERIZATION OF VOLATILE BISMUTH BETA-DIKETONATE COMPOUNDS FOR METAL ORGANIC-CHEMICAL VAPOR-DEPOSITION OF THIN-FILMS. Chem. Mat. Version: 1 4 (4) 912-916, issn: 0897-4756, ids: JG698, doi: 10.1021/cm00022a030
  • HYBERTSON, BM; HANSEN, BN; BARKLEY, RM; SIEVERS, RE (1991), DEPOSITION OF PALLADIUM FILMS BY A NOVEL SUPERCRITICAL FLUID TRANSPORT-CHEMICAL DEPOSITION PROCESS. Mater. Res. Bull. Version: 1 26 (11) 1127-1133, issn: 0025-5408, ids: GM871, doi: 10.1016/0025-5408(91)90118-6
  • TURNIPSEED, SB; BARKLEY, RM; SIEVERS, RE (1991), SYNTHESIS AND CHARACTERIZATION OF ALKALINE-EARTH-METAL BETA-DIKETONATE COMPLEXES USED AS PRECURSORS FOR CHEMICAL VAPOR-DEPOSITION OF THIN-FILM SUPERCONDUCTORS. Inorg. Chem. Version: 1 30 (6) 1164-1170, issn: 0020-1669, ids: FD041, doi: 10.1021/ic00006a003
  • SIEVERS, RE; HANSEN, B (1991), CHEMICAL SAFETY - SUPERCRITICAL FLUID NITROUS-OXIDE EXPLOSION. Chem. Eng. News Version: 1 69 (29) 2-2, issn: 0009-2347, ids: FX557
  • MONTZKA, SA; HYBERTSON, BM; BARKLEY, RM; SIEVERS, RE (1991), LOW-TEMPERATURE OXIDATION OF YBA2CU3O6.0 WITH NITROGEN-DIOXIDE. J. Mater. Res. Version: 1 6 (5) 891-894, issn: 0884-2914, ids: FK039, doi: 10.1557/JMR.1991.0891
  • BUHR, MP; PARRISH, DD; NORTON, RB; FEHSENFELD, FC; SIEVERS, RE; ROBERTS, JM (1990), CONTRIBUTION OF ORGANIC NITRATES TO THE TOTAL REACTIVE NITROGEN BUDGET AT A RURAL EASTERN UNITED-STATES SITE. J. Geophys. Res.-Atmos. Version: 1 95 (D7) 9809-9816, issn: 2169-897X, ids: DM736, doi: 10.1029/JD095iD07p09809
  • DICKINSON, PH; GEBALLE, TH; SANJURJO, A; HILDENBRAND, D; CRAIG, G; ZISK, M; COLLMAN, J; BANNING, SA; SIEVERS, RE (1989), CHEMICAL VAPOR-DEPOSITION OF YBA2CU3O7-X SUPERCONDUCTING FILMS. J. Appl. Phys. Version: 1 66 (1) 444-447, issn: 0021-8979, ids: AA256, doi: 10.1063/1.343845
  • MONTZKA, SA; BARKLEY, RM; SIEVERS, RE (1989), CATALYZED REDOX REACTIONS OCCURRING IN A CHEMI-LUMINESCENCE DETECTOR USED FOR ENVIRONMENTAL-ANALYSIS. Version: 1 SOUTH AFRICAN JOURNAL OF CHEMISTRY 42 (2) 81-86, issn: 0379-4350, ids: AF022
  • FOREMAN, WT; SHELLUM, CL; BIRKS, JW; SIEVERS, RE (1989), SUPERCRITICAL FLUID CHROMATOGRAPHY WITH SULFUR CHEMI-LUMINESCENCE DETECTION. Version: 1 JOURNAL OF CHROMATOGRAPHY 465 (1) 23-33, issn: 0021-9673, ids: T8065, doi: 10.1016/S0021-9673(01)94939-8
  • DEANGELIS, JJ; BARKLEY, RM; SIEVERS, RE (1988), COUPLING LIQUID-CHROMATOGRAPHY WITH REDOX CHEMI-LUMINESCENCE DETECTION. Version: 1 JOURNAL OF CHROMATOGRAPHY 441 (1) 125-134, issn: 0021-9673, ids: N7801, doi: 10.1016/S0021-9673(01)84660-4
  • FOREMAN, WT; SIEVERS, RE; WENCLAWIAK, BW (1988), SUPERCRITICAL FLUID CHROMATOGRAPHY WITH REDOX CHEMI-LUMINESCENCE DETECTION. Version: 1 FRESENIUS ZEITSCHRIFT FUR ANALYTISCHE CHEMIE 330 (3) 231-234, issn: 0016-1152, ids: M6100, doi: 10.1007/BF00515613
  • MCNAMARA, EA; MONTZKA, SA; BARKLEY, RM; SIEVERS, RE (1988), SUPERCONDUCTOR METAL-OXIDE CATALYST IN A CHEMI-LUMINESCENCE CHROMATOGRAPHY DETECTOR. Version: 1 JOURNAL OF CHROMATOGRAPHY 452 75-83, issn: 0021-9673, ids: Q9806, doi: 10.1016/S0021-9673(01)81438-2
  • POURREZA, N; MONTZKA, SA; BARKLEY, RM; SIEVERS, RE; HUTTE, RS (1987), CHEMISTRY OCCURRING IN REDOX CHEMILUMINESCENCE DETECTORS FOR CHROMATOGRAPHY. Version: 1 JOURNAL OF CHROMATOGRAPHY 399 165-172, issn: 0021-9673, ids: J7364
  • SIEVERS, RE; SHEARER, RL; BARKLEY, RM (1987), GAS-CHROMATOGRAPHIC MEASUREMENT OF CARBON-MONOXIDE IN HYDROCARBON MATRICES WITH A REDOX CHEMILUMINESCENCE DETECTOR. Version: 1 JOURNAL OF CHROMATOGRAPHY 395 9-17, issn: 0021-9673, ids: J1086, doi: 10.1016/S0021-9673(01)94096-8, PubMed ID: 3624368
  • GREAVES, RC; BARKLEY, RM; SIEVERS, RE; MEGLEN, RR (1987), COVARIATIONS IN THE CONCENTRATIONS OF ORGANIC-COMPOUNDS ASSOCIATED WITH SPRINGTIME ATMOSPHERIC AEROSOLS. Atmos. Environ. Version: 1 21 (12) 2549-2561, issn: 1352-2310, ids: L4552, doi: 10.1016/0004-6981(87)90187-9
  • HUTTE, RS; SIEVERS, RE; BIRKS, JW (1986), GAS-CHROMATOGRAPHY DETECTORS BASED ON CHEMILUMINESCENCE. J. Chromatogr. Sci. Version: 1 24 (11) 499-505, issn: 0021-9665, ids: E6951, doi: 10.1093/chromsci/24.11.499
  • NYARADY, SA; BARKLEY, RM; SIEVERS, RE (1985), REDOX CHEMI-LUMINESCENCE DETECTOR - APPLICATION TO GAS-CHROMATOGRAPHY. Anal. Chem. Version: 1 57 (11) 2074-2079, issn: 0003-2700, ids: APP67, doi: 10.1021/ac00288a016
  • ROBERTS, JM; HUTTE, RS; FEHSENFELD, FC; ALBRITTON, DL; SIEVERS, RE (1985), MEASUREMENTS OF ANTHROPOGENIC HYDROCARBON CONCENTRATION RATIOS IN THE RURAL TROPOSPHERE - DISCRIMINATION BETWEEN BACKGROUND AND URBAN SOURCES. Atmos. Environ. Version: 1 19 (11) 1945-1950, issn: 1352-2310, ids: AVE68, doi: 10.1016/0004-6981(85)90020-4
  • NYARADY, SA; SIEVERS, RE (1985), SELECTIVE CATALYTIC-OXIDATION OF ORGANIC-COMPOUNDS BY NITROGEN-DIOXIDE. J. Am. Chem. Soc. Version: 1 107 (12) 3726-3727, issn: 0002-7863, ids: AKD36, doi: 10.1021/ja00298a058
  • HAWTHORNE, SB; SIEVERS, RE; BARKLEY, RM (1985), ORGANIC EMISSIONS FROM SHALE OIL WASTEWATERS AND THEIR IMPLICATIONS FOR AIR-QUALITY. Environ. Sci. Technol. Version: 1 19 (10) 992-997, issn: 0013-936X, ids: ART38, doi: 10.1021/es00140a018
  • ROBERTS, JM; HAHN, CJ; FEHSENFELD, FC; WARNOCK, JM; ALBRITTON, DL; SIEVERS, RE (1985), MONOTERPENE HYDROCARBONS IN THE NIGHTTIME TROPOSPHERE. Environ. Sci. Technol. Version: 1 19 (4) 364-369, issn: 0013-936X, ids: AEG74, doi: 10.1021/es00134a011, PubMed ID: 22283351
  • GREAVES, RC; BARKLEY, RM; SIEVERS, RE (1985), RAPID SAMPLING AND ANALYSIS OF VOLATILE CONSTITUENTS OF AIRBORNE PARTICULATE MATTER. Anal. Chem. Version: 1 57 (14) 2807-2815, issn: 0003-2700, ids: AVD01, doi: 10.1021/ac00291a015
  • WENCLAWIAK, B; BARKLEY, RM; WILLIAMS, EJ; SIEVERS, RE (1985), GAS-CHROMATOGRAPHIC AND LIQUID-CHROMATOGRAPHIC SEPARATIONS OF GEOMETRICAL-ISOMERS OF TRIS(2,2,7-TRIMETHYLOCTANE-3,5-DIONATO)CHROMIUM(III) AND COBALT(III) CHELATES AND OTHER CR-BETA-DIKETONATES. Version: 1 JOURNAL OF CHROMATOGRAPHY 349 (2) 469-479, issn: 0021-9673, ids: AYB23, doi: 10.1016/S0021-9673(01)83807-3
  • GILLIS, JN; SIEVERS, RE; POLLOCK, GE (1985), SELECTIVE RETENTION OF OXYGEN USING CHROMATOGRAPHIC COLUMNS CONTAINING METAL CHELATE POLYMERS. Anal. Chem. Version: 1 57 (8) 1572-1577, issn: 0003-2700, ids: ALD42, doi: 10.1021/ac00285a017, PubMed ID: 11536562
  • WENZEL, TJ; WILLIAMS, EJ; HALTIWANGER, RC; SIEVERS, RE (1985), STUDIES OF METAL-CHELATES WITH THE NOVEL LIGAND 2,2,7-TRIMETHYL-3,5-OCTANEDIONE. Polyhedron Version: 1 4 (3) 369-378, issn: 0277-5387, ids: AFX75, doi: 10.1016/S0277-5387(00)86994-6
  • GRADEFF, PS; SCHREIBER, FG; BROOKS, KC; SIEVERS, RE (1985), SIMPLIFIED METHOD FOR THE SYNTHESIS OF CERIC ALKOXIDES FROM CERIC AMMONIUM-NITRATE. Inorg. Chem. Version: 1 24 (7) 1110-1111, issn: 0020-1669, ids: AEH57, doi: 10.1021/ic00201a033
  • SIEVERS, RE; NYARADY, SA; SHEARER, RL; DEANGELIS, JJ; BARKLEY, RM; HUTTE, RS (1985), SELECTIVITY OF THE REDOX CHEMILUMINESCENCE DETECTOR FOR COMPLEX SAMPLE ANALYSIS. Version: 1 JOURNAL OF CHROMATOGRAPHY 349 (2) 395-403, issn: 0021-9673, ids: AYB23, doi: 10.1016/S0021-9673(01)83797-3
  • ROBERTS, JM; FEHSENFELD, FC; LIU, SC; BOLLINGER, MJ; HAHN, C; ALBRITTON, DL; SIEVERS, RE (1984), MEASUREMENTS OF AROMATIC HYDROCARBON RATIOS AND NOX CONCENTRATIONS IN THE RURAL TROPOSPHERE - OBSERVATION OF AIR-MASS PHOTOCHEMICAL AGING AND NOX REMOVAL. Atmos. Environ. Version: 1 18 (11) 2421-2432, issn: 1352-2310, ids: TX913, doi: 10.1016/0004-6981(84)90012-X
  • CONDITT, MK; SIEVERS, RE (1984), MICROANALYSIS OF REACTION-PRODUCTS IN SEALED TUBE WET AIR OXIDATIONS BY CAPILLARY GAS-CHROMATOGRAPHY. Anal. Chem. Version: 1 56 (13) 2620-2622, issn: 0003-2700, ids: TP940, doi: 10.1021/ac00277a085
  • HUTTE, RS; WILLIAMS, EJ; STAEHELIN, J; HAWTHORNE, SB; BARKLEY, RM; SIEVERS, RE (1984), CHROMATOGRAPHIC ANALYSIS OF ORGANIC-COMPOUNDS IN THE ATMOSPHERE. Version: 1 JOURNAL OF CHROMATOGRAPHY 302 (OCT) 173-179, issn: 0021-9673, ids: TR983, doi: 10.1016/S0021-9673(01)89009-9, PubMed ID: 6209296
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  • HAWTHORNE, SB; SIEVERS, RE (1984), EMISSION OF ORGANIC AIR-POLLUTANTS FROM SHALE OIL WASTEWATERS. Environ. Sci. Technol. Version: 1 18 (6) 483-490, issn: 0013-936X, ids: ST450, doi: 10.1021/es00124a016, PubMed ID: 22247953
  • WENCLAWIAK, B; SIEVERS, RE (1983), SEPARATION OF GEOMETRICAL-ISOMERS OF CR-BETA-DIKETONATES WITH REVERSED PHASE-HPLC. Version: 1 FRESENIUS ZEITSCHRIFT FUR ANALYTISCHE CHEMIE 314 (7) 682-682, issn: 0016-1152, ids: QL500, doi: 10.1007/BF00487359
  • ROBERTS, JM; FEHSENFELD, FC; ALBRITTON, DL; SIEVERS, RE (1983), MEASUREMENT OF MONOTERPENE HYDROCARBONS AT NIWOT RIDGE, COLORADO. J. Geophys. Res.-Oceans Version: 1 88 (NC15) 667-678, issn: 2169-9275, ids: RV659, doi: 10.1029/JC088iC15p10667
  • SIEVERS, RE; BROOKS, KC (1983), GAS-CHROMATOGRAPHY COMBINED WITH MASS-SPECTROMETRY IN STUDIES OF COMPLEX-MIXTURES OF TRIS(BETA-DIKETONATO)CHROMIUM(III) GEOMETRICAL-ISOMERS WITH FUSED-SILICA CAPILLARY COLUMNS. Int. J. Mass Spectrom. Ion Process. Version: 1 47 (JAN) 527-530, issn: 0168-1176, ids: PX384, doi: 10.1016/0020-7381(83)87250-7
  • BOLLINGER, MJ; SIEVERS, RE; FAHEY, DW; FEHSENFELD, FC (1983), CONVERSION OF NITROGEN-DIOXIDE, NITRIC-ACID, AND NORMAL-PROPYL NITRATE TO NITRIC-OXIDE BY GOLD-CATALYZED REDUCTION WITH CARBON-MONOXIDE. Anal. Chem. Version: 1 55 (12) 1980-1986, issn: 0003-2700, ids: RJ147, doi: 10.1021/ac00262a034
  • WENZEL, TJ; SIEVERS, RE (1982), NUCLEAR MAGNETIC-RESONANCE STUDIES OF TERPENES WITH CHIRAL AND ACHIRAL LANTHANIDE(III) SILVER(I) BINUCLEAR SHIFT-REAGENTS. J. Am. Chem. Soc. Version: 1 104 (2) 382-388, issn: 0002-7863, ids: MZ487, doi: 10.1021/ja00366a003
  • WIZNER, MA; SINGHAWANGCHA, S; BARKLEY, RM; SIEVERS, RE (1982), SELECTIVE ELECTRON-CAPTURE SENSITIZATION OF WATER, PHENOLS, AMINES AND AROMATIC AND HETEROCYCLIC-COMPOUNDS. Version: 1 JOURNAL OF CHROMATOGRAPHY 239 (APR) 145-157, issn: 0021-9673, ids: NP579, doi: 10.1016/S0021-9673(00)81976-7
  • WENZEL, TJ; SIEVERS, RE (1982), BINUCLEAR SHIFT-REAGENTS FOR NUCLEAR MAGNETIC-RESONANCE SPECTROMETRY OF AROMATIC AND POLYCYCLIC AROMATIC-COMPOUNDS. Anal. Chem. Version: 1 54 (9) 1602-1606, issn: 0003-2700, ids: NZ573, doi: 10.1021/ac00246a032
  • WENZEL, TJ; ASHLEY, ME; SIEVERS, RE (1982), WATER-SOLUBLE PARAMAGNETIC RELAXATION REAGENTS FOR C-13 NUCLEAR MAGNETIC-RESONANCE SPECTROMETRY. Anal. Chem. Version: 1 54 (4) 615-621, issn: 0003-2700, ids: NG788, doi: 10.1021/ac00241a004
  • WENZEL, TJ; SIEVERS, RE (1981), BINUCLEAR COMPLEXES OF LANTHANIDE(III) AND SILVER(I) AND THEIR FUNCTION AS SHIFT-REAGENTS FOR OLEFINS, AROMATICS, AND HALOGENATED COMPOUNDS. Anal. Chem. Version: 1 53 (3) 393-399, issn: 0003-2700, ids: LD777, doi: 10.1021/ac00226a005
  • PICKER, JE; SIEVERS, RE (1981), LANTHANIDE METAL-CHELATES AS SELECTIVE COMPLEXING SORBENTS FOR GAS-CHROMATOGRAPHY. Version: 1 JOURNAL OF CHROMATOGRAPHY 203 (JAN) 29-40, issn: 0021-9673, ids: LA421, doi: 10.1016/S0021-9673(00)80279-4
  • PICKER, JE; SIEVERS, RE (1981), APPLICATIONS OF SELECTIVE COMPLEXATION BY A EUROPIUM(III) COORDINATION POLYMER SORBENT FOR THE PRE-FRACTIONATION OF VOLATILE COMPOUNDS. Version: 1 JOURNAL OF CHROMATOGRAPHY 217 (NOV) 275-288, issn: 0021-9673, ids: MS427, doi: 10.1016/S0021-9673(00)88082-6
  • WENZEL, TJ; BETTES, TC; SADLOWSKI, JE; SIEVERS, RE (1980), NEW BINUCLEAR LANTHANIDE NMR SHIFT-REAGENTS EFFECTIVE FOR AROMATIC-COMPOUNDS. J. Am. Chem. Soc. Version: 1 102 (18) 5903-5904, issn: 0002-7863, ids: KE710, doi: 10.1021/ja00538a032
  • GOLDAN, PD; FEHSENFELD, FC; KUSTER, WC; PHILLIPS, MP; SIEVERS, RE (1980), VINYL-CHLORIDE DETECTION AT SUB-PARTS-PER-BILLION LEVELS WITH A CHEMICALLY SENSITIZED ELECTRON-CAPTURE DETECTOR. Anal. Chem. Version: 1 52 (11) 1751-1754, issn: 0003-2700, ids: KF129, doi: 10.1021/ac50061a048
  • CUNNINGHAM, JA; SIEVERS, RE (1980), STRUCTURES OF EUROPIUM COMPLEXES AND IMPLICATIONS IN LANTHANIDE NUCLEAR MAGNETIC-RESONANCE SHIFT-REAGENT CHEMISTRY. Inorg. Chem. Version: 1 19 (3) 595-604, issn: 0020-1669, ids: JH255, doi: 10.1021/ic50205a005
  • KOLONKO, KJ; SHAPIRO, RH; BARKLEY, RM; SIEVERS, RE (1979), OZONATION OF CAFFEINE IN AQUEOUS-SOLUTION. J. Org. Chem. Version: 1 44 (22) 3769-3778, issn: 0022-3263, ids: HS228, doi: 10.1021/jo01336a007
  • SIEVERS, RE; PHILLIPS, MP; BARKLEY, RM; WIZNER, MA; BOLLINGER, MJ; HUTTE, RS; FEHSENFELD, FC (1979), SELECTIVE ELECTRON-CAPTURE SENSITIZATION. Version: 1 JOURNAL OF CHROMATOGRAPHY 186 (DEC) 3-14, issn: 0021-9673, ids: JH849, doi: 10.1016/S0021-9673(00)95232-4
  • PHILLIPS, MP; SIEVERS, RE; GOLDAN, PD; KUSTER, WC; FEHSENFELD, FC (1979), ENHANCEMENT OF ELECTRON-CAPTURE DETECTOR SENSITIVITY TO NONELECTRON ATTACHING COMPOUNDS BY ADDITION OF NITROUS-OXIDE TO THE CARRIER GAS. Anal. Chem. Version: 1 51 (11) 1819-1825, issn: 0003-2700, ids: HJ341, doi: 10.1021/ac50047a049
  • HALTIWANGER, RC; KOLONKO, KJ; SHAPIRO, RH; SIEVERS, RE (1979), 1,4,5,6-TETRAHYDRO-1,5,N-TRIMETHYL-4,6-DIOXO-1,3,5-TRIAZINE-2-CARBOXAMIDE. Acta Crystallogr. Sect. B-Struct. Commun. Version: 1 35 (JUN) 1509-1512, issn: 0108-7681, ids: HA612, doi: 10.1107/S0567740879006919
  • PETERSON, H; EICEMAN, GA; SIEVERS, RE; FIELD, LR (1978), GAS-CHROMATOGRAPHIC INJECTOR ATTACHMENT FOR DIRECT INSERTION AND REMOVAL OF A POROUS POLYMER SORPTION TRAP. Anal. Chem. Version: 1 50 (14) 2152-2154, issn: 0003-2700, ids: FY747, doi: 10.1021/ac50036a052
  • SIEVERS, RE; SADLOWSKI, JE (1978), VOLATILE METAL-COMPLEXES. Science Version: 1 201 (4352) 217-223, issn: 0036-8075, ids: FF638, doi: 10.1126/science.201.4352.217, PubMed ID: 17778645
  • SIEVERS, RE; BARKLEY, RM; EICEMAN, GA; SHAPIRO, RH; WALTON, HF; KOLONKO, KJ; FIELD, LR (1977), ENVIRONMENTAL TRACE ANALYSIS OF ORGANICS IN WATER BY GLASS CAPILLARY COLUMN CHROMATOGRAPHY AND ANCILLARY TECHNIQUES - PRODUCTS OF OZONOLYSIS. Version: 1 JOURNAL OF CHROMATOGRAPHY 142 (NOV) 745-754, issn: 0021-9673, ids: EB661, doi: 10.1016/S0021-9673(01)92082-5, PubMed ID: 914947
  • NAVRATIL, JD and RE SIEVERS (1977), CHEMICAL SEPARATIONS WITH OPEN-PORE POLYURETHANE. INT LAB Version: 1(NOV-) 26-&, issn: 0010-2164, ids: EG777
  • CHEN, TM; HESS, GG; SIEVERS, RE (1977), IMPROVEMENTS IN GAS-CHROMATOGRAPHIC COLUMNS FORMED BY INSITU POLYMERIZATION. Version: 1 JOURNAL OF CHROMATOGRAPHY 134 (1) 170-173, issn: 0021-9673, ids: DB731, doi: 10.1016/S0021-9673(00)82580-7
  • ROSS, WD; PYLE, JL; SIEVERS, RE (1977), ANALYSIS FOR BERYLLIUM IN AMBIENT AIR PARTICULATES BY GAS-CHROMATOGRAPHY. Environ. Sci. Technol. Version: 1 11 (5) 467-471, issn: 0013-936X, ids: DD442, doi: 10.1021/es60128a004
  • NAVRATIL, JD; SIEVERS, RE; WALTON, HF (1977), OPEN-PORE POLYURETHANE COLUMNS FOR COLLECTION AND PRECONCENTRATION OF POLYNUCLEAR AROMATIC-HYDROCARBONS FROM WATER. Anal. Chem. Version: 1 49 (14) 2260-2263, issn: 0003-2700, ids: EC167, doi: 10.1021/ac50022a038
  • BLACK, MS; REHG, WR; SIEVERS, RE; BROOKS, JJ (1977), GAS-CHROMATOGRAPHIC TECHNIQUE FOR COMPOUND CLASS ANALYSIS OF JET ENGINE EXHAUST. Version: 1 JOURNAL OF CHROMATOGRAPHY 142 (NOV) 809-822, issn: 0021-9673, ids: EB661, doi: 10.1016/S0021-9673(01)92088-6
  • BLACK, MS; SIEVERS, RE (1976), DETERMINATION OF CHROMIUM IN HUMAN-BLOOD SERUM BY GAS-CHROMATOGRAPHY WITH A MICROWAVE EXCITED EMISSION DETECTOR. Anal. Chem. Version: 1 48 (13) 1872-1874, issn: 0003-2700, ids: CH782, doi: 10.1021/ac50007a015, PubMed ID: 970640
  • SIEVERS, RE, JJ BROOKS, JA CUNNINGHAM and WE RHINE (1976), UNUSUALLY VOLATILE AND SOLUBLE METAL-CHELATES - LANTHANIDE NMR SHIFT-REAGENTS. ADVAN CHEM SER Version: 1(150) 222-231, issn: 0065-2393, ids: BZ182
  • TESCH, JW; REHG, WR; SIEVERS, RE (1976), MICRODETERMINATION OF NITRATES AND NITRITES IN SALIVA, BLOOD, WATER, AND SUSPENDED PARTICULATES IN AIR BY GAS-CHROMATOGRAPHY. Version: 1 JOURNAL OF CHROMATOGRAPHY 126 (3-Nov) 743-755, issn: 0021-9673, ids: CK675, doi: 10.1016/S0021-9673(01)84117-0, PubMed ID: 977706
  • ROSS, WD, GW BUTTLER, TG DUFFY, WR REHG, MT WININGER and RE SIEVERS (1975), ANALYSIS FOR AQUEOUS NITRATES AND NITRITES AND GASEOUS OXIDES OF NITROGEN BY ELECTRON-CAPTURE GAS-CHROMATOGRAPHY. J CHROMATOGR Version: 1 112 (29-Oct) 719-727, issn: 0021-9673, ids: AW370
  • KUTAL, C and RE SIEVERS (1974), RATE AND EQUILIBRIUM STUDY OF CIS-TRANS ISOMERIZATION OF TRIS(1,1,1-TRIFLUORO-2,4-PENTANEDIONATO)CHROMIUM(III) IN GAS-PHASE. Inorg. Chem. Version: 1 13 (4) 897-900, issn: 0020-1669, ids: S8793
  • HANSEN, LC and RE SIEVERS (1974), HIGHLY PERMEABLE OPEN-PORE POLYURETHANE COLUMNS FOR LIQUID-CHROMATOGRAPHY. J CHROMATOGR Version: 1 99 (6-Nov) 123-133, issn: 0021-9673, ids: U6708
  • ECKSTEIN, H, RE SIEVERS and E BAYER (1973), SIMPLIFIED SYNTHESIS OF TYROSINE AND LYSINE DERIVATIVES FROM THEIR COPPER-COMPLEXES BY LIGAND-EXCHANGE WITH DISODIUM SALT OF ETHYLENEDIAMINETETRAACETIC ACID (EDTA). ANN CHEM Version: 1(9) 1467-1470, issn: 0075-4617, ids: Q8493
  • BROOKS, JJ and RE SIEVERS (1973), GAS-CHROMATOGRAPHIC STUDIES OF INTERACTIONS BETWEEN SELECTED ORGANIC NUCLEOPHILES AND NMR SHIFT REAGENT, TRIS(1,1,1,2,2,3,3-HEPTAFLUORO-7,7-DIMETHYL-4,6-OCTANEDIONATO)EUROPIUM(III). J. Chromatogr. Sci. Version: 1 11 (6) 303-309, issn: 0021-9665, ids: P9337
  • HILEMAN, FD, RE SIEVERS, GG HESS and WD ROSS (1973), IN-SITU PREPARATION AND EVALUATION OF OPEN PORE POLYURETHANE CHROMATOGRAPHIC COLUMNS. Anal. Chem. Version: 1 45 (7) 1126-1130, issn: 0003-2700, ids: P7266
  • BAYER, E, M MUTTER, RE SIEVERS, R UHMANN and P HUNZIKER (1972), F-19 NUCLEAR MAGNETIC-RESONANCE FOR CONTROL OF PEPTIDE SYNTHESIS. J. Am. Chem. Soc. Version: 1 94 (1) 265-&, issn: 0002-7863, ids: L3243
  • FEIBUSH, B, RE SIEVERS, CS SPRINGER and RICHARDS.MF (1972), COMPLEXES OF NUCLEOPHILES WITH RARE-EARTH CHELATES .1. GAS-CHROMATOGRAPHIC STUDIES OF LANTHANIDE NUCLEAR MAGNETIC-RESONANCE SHIFT REAGENTS. J. Am. Chem. Soc. Version: 1 94 (19) 6717-&, issn: 0002-7863, ids: N5151
  • WOLF, WR, RE SIEVERS and GH BROWN (1972), VAPOR-PRESSURE MEASUREMENTS AND GAS-CHROMATOGRAPHIC STUDIES OF SOLUTION THERMODYNAMICS OF METAL BETA-DIKETONATES. Inorg. Chem. Version: 1 11 (9) 1995-&, issn: 0020-1669, ids: N3883
  • RICHARDS.MF and RE SIEVERS (1972), CRYSTAL AND MOLECULAR STRUCTURE OF MACROCYCLIC COMPLEX, 11,13-DIMETHYL-1,4,7,10-TETRAAZACYCLOTRIDECA-10,12-DIENATONICKEL(II) PERCHLORATE. J. Am. Chem. Soc. Version: 1 94 (12) 4134-&, issn: 0002-7863, ids: M7012
  • CUMMINGS, SC and RE SIEVERS (1972), PSEUDOOCTAHEDRAL COBALT(III), NICKEL(II), AND CADMIUM(II) COMPLEXES OF LINEAR, SEXADENTATE, FLUORINATED SCHIFF-BASE LIGANDS. Inorg. Chem. Version: 1 11 (7) 1483-&, issn: 0020-1669, ids: M8848
  • ROSS, WD and RE SIEVERS (1972), ENVIRONMENTAL AIR ANALYSIS FOR ULTRATRACE CONCENTRATIONS OF BERYLLIUM BY GAS-CHROMATOGRAPHY. Environ. Sci. Technol. Version: 1 6 (2) 155-&, issn: 0013-936X, ids: L5103
  • EISENTRA.KJ, RE SIEVERS, MS BLACK and DJ GRIEST (1972), BERYLLIUM CONTENT OF US GEOLOGICAL SURVEY STANDARD ROCKS. Earth Planet. Sci. Lett. Version: 1 15 (2) 169-&, issn: 0012-821X, ids: N0159
  • RICHARDS.MF and RE SIEVERS (1971), VOLATILE RARE EARTH CHELATES OF 1,1,1,5,5,5-HEXAFLUORO-2,4-PENTANEDIONE AND 1,1,1,2,2,3,3,7,7,7-DECAFLUORO-4,6-HEPTANEDIONE. Inorg. Chem. Version: 1 10 (3) 498-&, issn: 0020-1669, ids: I6166
  • HANSEN, LC, WG SCRIBNER, TW GILBERT and RE SIEVERS (1971), RAPID ANALYSIS FOR SUB-NANOGRAM AMOUNTS OF CHROMIUM IN BLOOD AND PLASMA USING ELECTRON CAPTURE GAS CHROMATOGRAPHY. Anal. Chem. Version: 1 43 (3) 349-&, issn: 0003-2700, ids: I5667
  • RONDEAU, RE and RE SIEVERS (1971), NEW SUPERIOR PARAMAGNETIC SHIFT REAGENTS FOR NUCLEAR MAGNETIC RESONANCE SPECTRAL CLARIFICATION. J. Am. Chem. Soc. Version: 1 93 (6) 1522-&, issn: 0002-7863, ids: I8227
  • SPRINGER, C, RE SIEVERS and B FEIBUSH (1971), CHIRAL CHELATES WITH CHIRAL LIGANDS - STEREOISOMERS OF TRIS[(+]-3-ACETYLCAMPHORATO(COBALT(III). Inorg. Chem. Version: 1 10 (6) 1242-&, issn: 0020-1669, ids: J4325
  • BAYER, E, HP MULLER and R SIEVERS (1971), HEXAFLUOROMONOTHIOACETYLACETONE-A NEW LIGAND FOR GAS CHROMATOGRAPHIC SEPARATION OF D8-METALS. Anal. Chem. Version: 1 43 (14) 2012-&
  • EISENTRA.KJ, DJ GRIEST and RE SIEVERS (1971), ULTRATRACE ANALYSIS FOR BERYLLIUM IN TERRESTRIAL, METEORITIC, AND APOLLO-11 AND APOLLO-12 LUNAR SAMPLES USING ELECTRON CAPTURE GAS CHROMMATOGRAPHY. Anal. Chem. Version: 1 43 (14) 2003-&, issn: 0003-2700, ids: K8931
  • CUMMINGS, SC and RE SIEVERS (1970), A NEW AND SIMPLE TEMPLATE SYNTHESIS OF UNINEGATIVE, MACROCYCLIC, CORRIN-TYPE LIGANDS. J. Am. Chem. Soc. Version: 1 92 (1) 215-&, issn: 0002-7863, ids: F1001
  • BAYER, E, NICHOLSO.G and RE SIEVERS (1970), SEPARATION OF ISOTOPES OF CARBON AND SULFUR BY GAS CHROMATOGRAPHY WITH PACKED COLUMNS. J. Chromatogr. Sci. Version: 1 8 (8) 467-&, issn: 0021-9665, ids: H0523
  • RICHARDS.MF, PW CORFIELD, DE SANDS and RE SIEVERS (1970), CRYSTAL AND MOLECULAR STRUCTURE OF ACETYLACETONIMINE ADDUCT OF YTTERBIUM ACETYLACETONATE, YB(C5H7O2)3(CH3COCH=C(NH2)CH3). Inorg. Chem. Version: 1 9 (7) 1632-&, issn: 0020-1669, ids: G6787
  • RICHARDS.MF and RE SIEVERS (1970), SCHIFF BASES PREPARED FROM ETHYLENEDIAMINE AND HEXAFLUOROACETYLACETONE. J INORG NUCL CHEM Version: 1 32 (6) 1895-&, issn: 0022-1902, ids: G3459
  • CUMMINGS, SC and RE SIEVERS (1970), A NEW SYNTHETIC ROUTE TO MACROCYCLIC NICKEL(II) COMPLEXES WITH UNINEGATIVE, SCHIFF-BASE LIGANDS. Inorg. Chem. Version: 1 9 (5) 1131-&, issn: 0020-1669, ids: G1349
  • KOWALSKI, BR, TL ISENHOUR and RE SIEVERS (1969), ULTRA-TRACE MASS SPECTROMETRIC METAL ANALYSIS USING HEPTAFLUORODIMETHYLOCTANEDIONE CHELATES. Anal. Chem. Version: 1 41 (8) 998-&, issn: 0003-2700, ids: D5247
  • SICRE, JE, JT DUBOIS, EISENTRA.KJ and RE SIEVERS (1969), VOLATILE LANTHANIDE CHELATES .2. VAPOR PRESSURES HEATS OF VAPORIZATION AND HEATS OF SUBLIMATION. J. Am. Chem. Soc. Version: 1 91 (13) 3476-&, issn: 0002-7863, ids: D4480
  • ROSS, WD and RE SIEVERS (1968), RAPID ULTRA-TRACE DETERMINATION OF BERYLLIUM BY GAS CHROMATOGRAPHY. Talanta Version: 1 15 (1) 87-&, issn: 0039-9140, ids: A3765
  • SPRINGER, CS, DW MEEK and RE SIEVERS (1967), RARE EARTH CHELATES OF 1,1,1,2,2,3,3-HEPTAFLUORO-7,7-DIMETHYL-4,6-OCTANEDIONE. Inorg. Chem. Version: 1 6 (6) 1105-&, issn: 0020-1669, ids: 94169
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  • SIEVERS, RE, JW CONNOLLY and WD ROSS (1967), METAL ANALYSIS BY GAS CHROMATOGRAPHY OF CHELATES OF HEPTAFLUORODIMETHYLOCTANEDIONE. J GAS CHROMATOGR Version: 1 5 (5) 241-&, ids: 93167
  • FORTMAN, JJ and RE SIEVERS (1967), DETERMINATION OF RATES OF OPTICAL INVERSION OF ALUMINUM BETA-DIKETONATE COMPLEXES BY NUCLEAR MAGNETIC RESONANCE STUDIES OF RACEMIC MIXTURES. Inorg. Chem. Version: 1 6 (11) 2022-&, issn: 0020-1669, ids: A1081
  • LINCK, RG and RE SIEVERS (1966), SOLVENT EFFECTS ON NUCLEAR MAGNETIC RESONANCE SPECTRA OF ALUMINUM BETA-DIKETONATES. Inorg. Chem. Version: 1 5 (5) 806-&, issn: 0020-1669, ids: 76637
  • CHATTORA.SC, AG CUPKA and RE SIEVERS (1966), CADMIUM AND ZINC CHELATES OF HEXAFLUOROACETYLACETONE - GAS PHASE REACTION OF A NOVEL VOLATILE CADMIUM COMPLEX WITH HYDROGEN SULPHIDE. J INORG NUCL CHEM Version: 1 28 (9) 1937-&, issn: 0022-1902, ids: 81919
  • VANHEMER.RL, SPENDLOV.LB and RE SIEVERS (1965), VAPOR DEPOSITION OF METALS BY HYDROGEN REDUCTION OF METAL CHELATES. J. Electrochem. Soc. Version: 1 112 (11) 1123-&, issn: 0013-4651, ids: 69455
  • DASSARMA, B, RE SIEVERS, JC BAILAR and KR RAY (1964), STEREOCHEMISTRY OF METAL CHELATES WITH MULTIDENTATE LIGANDS .2.. J. Am. Chem. Soc. Version: 1 86 (1) 14-&, issn: 0002-7863, ids: 3119B
  • SIEVERS, RE, BW PONDER, ML MORRIS and RW MOSHIER (1963), GAS PHASE CHROMATOGRAPHY OF METAL CHELATES OF ACETYLACETONE, TRIFLUOROACETYLACETONE, AND HEXAFLUOROACETYLACETONE. Inorg. Chem. Version: 1 2 (4) 693-&, issn: 0020-1669, ids: 2618B
  • SIEVERS, RE and JC BAILAR (1962), SOME METAL CHELATES OF ETHYLENEDIAMINETETRAACETIC ACID, DIETHYLENETRIAMINEPENTAACETIC ACID, AND TRIETHYLENETETRAMINEHEXAACETIC ACID. Inorg. Chem. Version: 1 1 (1) 174-&, issn: 0020-1669, ids: 2611B