Organic Acid - Chemical Ionization Mass Spectrometer

Principle of the Measurement:
1. Chemical ionization of organic acids by transfer with acetate ions
2. Detection using a quadrupole mass spectrometer

Species Measured:
1. Mono and di-carboxylic acids

Time response:
1-10 seconds

Detection limit:
10-100 pptv

Manufacturer:
Home-built


Publications:

Development of negative-ion proton-transfer chemical-ionization mass spectrometry (NI-PT-CIMS) for the measurement of gas-phase organic acids in the atmosphere
P. Veres, J.M. Roberts, C. Warneke, D. Welsh-Bon, M. Zahniser, S. Herndon, R. Fall and J. de Gouw
International Journal of Mass Spectrometry, 274, 48-55 (2008).