Methods for Determination of Four Nitro Alkances in the Air of Workplace
- VernacularTitle:工作场所空气中4种硝基烷烃类化合物的气相色谱测定法
- Author:
Ming ZHAN
;
Ye XI
;
Jingliang XU
- Publication Type:Journal Article
- Keywords:
Chromatography,gas;
Nitromethane;
Nitroethane;
1-nitropropane;
2-nitropropane
- From:
Journal of Environment and Health
1992;0(05):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To develop the methods for determination of nitromethane,nitroethane,1-nitropropane,2-nitropropane in the air of workplace. Methods Nitromethane,nitroethane,1-nitropropane,2-nitropropane in the air of workplace were collected by active carbon tube,desorbed in ethyl acetate solution and detected by capillary gas chromatography (GC-FID). Results The linear concentration range of nitromethane,nitroethane,1-nitropropane,2-nitropropane was 43.2-345.3,177.6-1 421.0,68.5-547.7,24.1-192.4 ?g/ml respectively and the relative standard deviation was 1%-5%. Sampling efficiency was 100%,desorption efficiency was 91%-93%. The sample could be resaved at 4-10 ℃ for 5-7 days. Conclusion The method is applicable to determination of nitromethane,nitroethane,1-nitropropane,2-nitropropane in the air of workplace.
