Evaluation of Photovac 10S50 portable photoionization gas chromatograph for analysis of toxic organic pollutants in ambient air
The objective of the study was to evaluate the Photovac 10S50 portable photoionization gas chromatograph as a monitor for fourteen selected toxic organic vapors in ambient air. These included benzene, toluene, bromo- and chloro-benzene, o-xylene, and nine halo-methanes, ethanes, and ethylenes. Such analyses have usually been done by gas chromatography using a mass spectrometer as detector (GC/MS). The procedure is inefficient in collection and delivery of analytes to the GC/MS system and limits GC/MS analysis of organic vapors in air to being a semiquantitative method which may produce misleading results. A portable chromatograph with a detector sensitive enough to detect pollutants without preconcentration could avoid these shortcomings and supplement or complement data obtained by preconcentration/GC/MS.
- Research Organization:
- Environmental Protection Agency, Las Vegas, NV (USA). Environmental Monitoring Systems Lab.
- OSTI ID:
- 6862322
- Report Number(s):
- PB-87-132858/XAB; EPA-600/4-86/041
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
400102 -- Chemical & Spectral Procedures
500200* -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
AIR POLLUTION MONITORS
CHROMATOGRAPHY
GAS CHROMATOGRAPHY
MATERIALS
MEASURING INSTRUMENTS
MONITORS
ORGANIC COMPOUNDS
PERFORMANCE
SENSITIVITY
SEPARATION PROCESSES
TOXIC MATERIALS