[Detecting the concentrations of diphenylamine in air of workplace with HPLC].
Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi
; 36(7): 546-549, 2018 Jul 20.
Article
en Zh
| MEDLINE
| ID: mdl-30248775
Objective: To establish the method of detecting the concentrations of diphenylamine in air of workplace with high performance liquid chromatographic (HPLC) . Methods: According to standards of methods for determining the chemical substances in workplace air, diphenylamine in the air was collected by glass fiber filter treated with sulfuric acid, then dissolved by methanol and determined by high performance liquid chromatography with UV-detector. Results: There was a linear relationship within the range of 0-30.0 µg/ml, and regression equation was y=8425.6x-150.7, correlation coefficient was 0.999 9, the detection limit was 0.045 µg/ml. The lowest detected concentration was 0.030 mg/m(3) (sampling volume 15 L) . The within-run precision was 2.41 â
-3.02%, the between-run precision was 3.11%-4.45%. The desorption efficiencies was 97.8â
and the sampling efficiencies were 100%. The samples in glass fiber filter could be stored for 7 d at room temperature. Conclusion: 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 diphenylamine in workplace air.
Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Cromatografía Líquida de Alta Presión
/
Lugar de Trabajo
/
Contaminantes Ocupacionales del Aire
/
Difenilamina
Límite:
Humans
Idioma:
Zh
Revista:
Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi
Asunto de la revista:
MEDICINA OCUPACIONAL
Año:
2018
Tipo del documento:
Article
País de afiliación:
China
Pais de publicación:
China