Method for near-real-time continuous air monitoring of phosgene, hydrogen cyanide, and cyanogen chloride

Frank Gary Lattin; Donald G. Paul

doi:10.1117/12.259771

26 November 1996 Method for near-real-time continuous air monitoring of phosgene, hydrogen cyanide, and cyanogen chloride

Frank Gary Lattin, Donald G. Paul

Author Affiliations +

Proceedings Volume 2835, Advanced Technologies for Environmental Monitoring and Remediation; (1996) https://doi.org/10.1117/12.259771
Event: SPIE's 1996 International Symposium on Optical Science, Engineering, and Instrumentation, 1996, Denver, CO, United States

Abstract

A sorbent-based gas chromatographic method provides continuous quantitative measurement of phosgene, hydrogen cyanide, and cyanogen chloride in ambient air. These compounds are subject to workplace exposure limits as well as regulation under terms of the Chemical Arms Treaty and Title III of the 1990 Clean Air Act amendments. The method was developed for on-sit use in a mobile laboratory during remediation operations. Incorporated into the method are automated multi-level calibrations at time weighted average concentrations, or lower. Gaseous standards are prepared in fused silica lined air sampling canisters, then transferred to the analytical system through dynamic spiking. Precision and accuracy studies performed to validate the method are described. Also described are system deactivation and passivation techniques critical to optimum method performance.

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Frank Gary Lattin and Donald G. Paul "Method for near-real-time continuous air monitoring of phosgene, hydrogen cyanide, and cyanogen chloride", Proc. SPIE 2835, Advanced Technologies for Environmental Monitoring and Remediation, (26 November 1996); https://doi.org/10.1117/12.259771

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