Fast, Miniaturized, Real-Time Unit for Sampling, Modulation, and Separation in Detection of Hazardous Chemicals

Fast, Miniaturized, Real-Time Unit for Sampling, Modulation, and Separation in Detection of Hazardous Chemicals

A sampling, modulation, and separation (SMS) unit was tested for detection of hazardous chemicals. The SMS unit, designed and developed for on-site sampling and analysis, consists of a dynamic inlet system coupled with a fast, miniaturized gas chromatograph (GC). Feasibility of the SMS unit was eval...

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Bibliographic Details
Published in:Analytical chemistry (Washington) Vol. 92; no. 21; pp. 14589 - 14593
Main Authors: Pallis, George C, Psarras, George P, Vamvakari, Julia, Kuula, Matti J, Kiljunen, Harri, Hakulinen, Hanna, Vanninen, Paula
Format: Journal Article
Language:English
Published: United States American Chemical Society 03-11-2020
Subjects:
Analytical chemistry
Chemicals
Chemistry
Degradation products
Gas chromatography
Hazardous Substances - chemistry
Hazardous Substances - isolation & purification
Mass spectrometry
Mass Spectrometry - methods
Mass spectroscopy
Miniaturization - methods
Modulation
Mustard gas
Nerve agents
Photoionization
Reagents
Sampling
Sarin
Separation
Sulfur
Temperature
Time Factors
Vaporizers
Vapors
Volatilization
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Description
Summary:A sampling, modulation, and separation (SMS) unit was tested for detection of hazardous chemicals. The SMS unit, designed and developed for on-site sampling and analysis, consists of a dynamic inlet system coupled with a fast, miniaturized gas chromatograph (GC). Feasibility of the SMS unit was evaluated together with a hazardous chemical vapor generator. The performance of the SMS unit was tested with automated thermal desorption after SMS to collect samples for GC-mass spectrometry (GC-MS) measurements. Detection of sarin nerve agent was verified. Additionally, the vapor generator was connected to the SMS unit, which was hyphenated with a photoionization detector (PID), thus creating a fast GC-PID system. This system gave a positive response for degradation products of sulfur mustard, thereby indicating suitability of the SMS-PID unit for field drone applications.
ISSN:0003-2700
1520-6882
DOI:10.1021/acs.analchem.0c02898