Detection of chlorpyrifos in air of workplace with HPLC / 中华劳动卫生职业病杂志
Chinese Journal of Industrial Hygiene and Occupational Diseases
;
(12): 953-955, 2012.
Artículo
en Chino
| WPRIM
| ID: wpr-242729
ABSTRACT
<p><b>OBJECTIVE</b>To establish the method of detecting the concentrations of chlorpyrifos in air of workplace with high performance liquid chromatographic (HPLC).</p><p><b>METHODS</b>According to standards of methods for determining the chemical substances in workplace air, chlorpyrifos in the air was collected by silicone tube, then dissolved by acetonitrile and determined by high performance liquid chromatography with UV-detector.</p><p><b>RESULTS</b>There was a linear relationship within the range of 0 ∼ 10.0 µg/ml, and regression equation was y = 5206.1x - 104.7, correlation coefficient was 0.9999, the detection limit was 0.006 µg/ml. The lowest detected concentration was 0.001 mg/m(3) (sampling volume 4.5 L). The average recoveries was 98.3% ∼ 102.5%. The within-run precision was 1.96% ∼ 4.39%, the between-run precision was 2.76% ∼ 5.87%. The desorption efficiencies were 99.0% ∼ 103.3% and the sampling efficiencies were 94%. The samples in silicone tube could be stored for 15 days at room temperature.</p><p><b>CONCLUSION</b>The present method could meet with the requirements of Guide for establishing occupational health standards-Part 4 Determination methods of air chemicals in workplace and be feasible for determination of chlorpyrifos in workplace air.</p>
Texto completo:
Disponible
Índice:
WPRIM (Pacífico Occidental)
Asunto principal:
Reproducibilidad de los Resultados
/
Cromatografía Líquida de Alta Presión
/
Lugar de Trabajo
/
Contaminantes Ocupacionales del Aire
/
Cloropirifos
/
Toxicidad
/
Límite de Detección
/
Métodos
Tipo de estudio:
Estudio diagnóstico
Idioma:
Chino
Revista:
Chinese Journal of Industrial Hygiene and Occupational Diseases
Año:
2012
Tipo del documento:
Artículo
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