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Updated: Apr 14, 2026
On-line Analysis of Nitrogen Containing Compounds in Complex Hydrocarbon Matrixes
Published on: August 5, 2016
[Gas chromatography for determination of N-isopropylaniline in workplace atmosphere]
Jing Xuan1, Xingfu Pan, Xiaodong Liu
1School of Public Health, Hebei United University, Tangshan 063000, China.
Objective:
To establish a method for determination of N-isopropylaniline in the workplace atmosphere by gas chromatography.
Methods:
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.
Results:
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).
Conclusion:
The method meets the requirements of analysis and applies to the determination of N-isopropylaniline in the workplace atmosphere.
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