Gas chromatography for determination of N-isopropylaniline in workplace atmosphere
Xuan, J.; Pan, X.; Liu, X.; Yan, H.; Zhang, Y.
Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 33(2): 143-145
2015
ISSN/ISBN: 1001-9391 PMID: 25916372 Document Number: 680357
To establish a method for determination of N-isopropylaniline in the workplace atmosphere by gas chromatography. Air samples were collected by silica gel tube and desorbed by acetone. Then they were separated through DB-WAX columns and N-isopropylaniline was determined by flame ionization detector. The concentration of N-isopropylaniline showed a good linear relationship within the range of 1.40∼665.0 µg/ml. The sampling efficiency was 100%. The accuracy was 96%∼ 99% and the precision was 2.1%∼7.0%. The minimum detectable concentration was 0.056 mg/m(3) (with sampled air volume of 7.5 L). The method meets the requirements of analysis and applies to the determination of N-isopropylaniline in the workplace atmosphere.