Application and Field Validation of a Continuous Nonmethane Organic Carbon Analyzer

Document Type

Article

Publication Date

1-1-2001

Abstract

Nonmethane organic carbon (NMOC) is a measure of total organic carbon except for that from CH4. We recently reported the development of online instrumentation for continuous NMOC monitoring. This instrument, referred to as C-NMOC, uses a microsorbent trap in combination with a gas-sampling valve as the sampling interface. A conventional oxidation/reduction NMOC detector is used for quantitation. In addition to being an online concentrator and an injector, the microtrap serves as a separator that isolates NMOC from H2O, CO, CO2, CH4, and other background gases. Therefore, the C-NMOC is able to handle high concentrations of background gases commonly found in stack emissions and has detection limits in the ppb levels. This paper reports the results of field validation and testing of a C-NMOC analyzer at a coatings facility in the eastern United States. The instrument was able to monitor the process transients in real time, based on which corrective actions could be taken. It demonstrated good accuracy, high precision, and long-term stability. © 2001 Air and Waste Management Association.

Identifier

0034917324 (Scopus)

Publication Title

Journal of the Air and Waste Management Association

External Full Text Location

https://doi.org/10.1080/10473289.2001.10464322

ISSN

10473289

PubMed ID

11417677

First Page

861

Last Page

868

Issue

6

Volume

51

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