Determination of glyphosate in air of workplaces by ion chromatography / 中华劳动卫生职业病杂志
Chinese Journal of Industrial Hygiene and Occupational Diseases
;
(12): 779-782, 2013.
Artigo
em Chinês
| WPRIM
| ID: wpr-275814
ABSTRACT
<p><b>OBJECTIVE</b>To establish a method for determining glyphosate in the air of workplaces by ion chromatography.</p><p><b>METHODS</b>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.</p><p><b>RESULTS</b>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.</p><p><b>CONCLUSION</b>This presented method meets the requirements of Guide for establishing occupational health standards-Part 4 Determination methods of air chemicals in workplace and is feasible for determination of glyphosate in the air of workplaces.</p>
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Assunto principal:
Cromatografia Gasosa
/
Local de Trabalho
/
Poluentes Ocupacionais do Ar
/
Glicina
Idioma:
Chinês
Revista:
Chinese Journal of Industrial Hygiene and Occupational Diseases
Ano de publicação:
2013
Tipo de documento:
Artigo
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