Determination of glyphosate in air of workplaces by ion chromatography

To establish a method for determining glyphosate in the air of workplaces by ion chromatography. Ultra-fine glass fiber filter paper was used to collect glyphosate from the workplace air. After being ultrasonically eluted with deionized water, samples were determined by ion chromatography using a co...

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Bibliographic Details
Published inZhonghua laodong weisheng zhiyebing zazhi Vol. 31; no. 10; p. 779
Main Authors Zhang, Ren-nan, Liu, Hua-liang, Huo, Zong-li, Zhang, Feng, Ma, Yong-jian, Zhu, Bao-li, Dou, Jian-rui, Mao, Yi-yang
Format Journal Article
LanguageChinese
Published China 01.10.2013
Subjects
Air Pollutants, Occupational - analysis
Chromatography, Gas
Glycine - analogs & derivatives
Glycine - analysis
Glyphosate
Workplace
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Summary:To establish a method for determining glyphosate in the air of workplaces by ion chromatography. Ultra-fine glass fiber filter paper was used to collect glyphosate from the workplace air. After being ultrasonically eluted with deionized water, samples were determined by ion chromatography using a conductivity detector. Within the range of 0.05-1.00 mg/L, a linear relationship was found with a limit of detection of 0.003 mg/m(3). The minimum detectable concentration was 0.000 41 mg/m(3) (calculated by sampling 75 L of air). For three different concentrations of glyphosate, the intra-batch relative standard deviations (RSDs) were 1.8%, 1.6%, and 0.8%, respectively, and the inter-batch RSDs were 1.9%, 2.1%, and 2.2%, respectively. The recovery rate ranged from 94.8% to 97.4%. The elution efficiency ranged from 94.5% to 96.7%. The sampling efficiency was 100%. Samples could be stored at room temperature for at least 7 days. This presented method meets the requirements of Guide for establishing occupational health
ISSN:1001-9391