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Issue 5, 1999
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Development of a personal monitoring method for nitrogen dioxide and sulfur dioxide with Sep-Pak C18 cartridge sampling and ion chromatographic determination

Abstract

Personal monitoring methods for the determination of hourly integrated concentrations of NO 2 and SO 2 in ambient air have been developed. Triethanolamine (TEA)-impregnated C 18 Sep-Pak cartridges were used to collect NO 2 and SO 2 simultaneously. After sampling, NO 2 and SO 2 as their nitrite, nitrate, sulfite and sulfate analogues were stripped from the cartridges with a solution of 5% methanol in distilled, deionized water (DDW) and then determined by ion chromatography. Laboratory tests were conducted to evaluate the sampling rate, collection and recovery efficiencies, breakthrough volumes, absorption capacity, interference and sample stability on the cartridge during storage. NO 2 and SO 2 detection limits of 0.3 and 0.4 ppb respectively for 1 h samples were obtained. Recoveries for both NO 2 and SO 2 exceeded 85%.

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Article type: Paper
DOI: 10.1039/A905305K
Citation: J. Environ. Monit., 1999,1, 423-426
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    Development of a personal monitoring method for nitrogen dioxide and sulfur dioxide with Sep-Pak C18 cartridge sampling and ion chromatographic determination

    Y. Wang, A. Allen, D. Mark and R. M. Harrison, J. Environ. Monit., 1999, 1, 423
    DOI: 10.1039/A905305K

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