Determination of 11 Kinds of VOCs in Drinking Water with Headspace Gas Chromatography
- VernacularTitle:饮用水中11种挥发性有机物的顶空气相色谱测定法
- Author:
Shiping SUN
;
Darong XING
;
Jiangping DUAN
- Publication Type:Journal Article
- Keywords:
Water;
Chromatography, gas;
Volatile organic compounds
- From:
Journal of Environment and Health
2007;0(08):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To establish a method for determining VOCs in drinking water by headspace gas chromatography. Methods VOCs in the water were extracted by headspace technology, then analyzed with Rtx-WAX capillary column, in the same time, VOCs was determined with GC by controlling the temperature and the speed of nitrogen. The retention time of the peaks was used for qualitative analysis, external standard method was used for quantitative analysis. Results The linear ranges of dichloromethane, benzene, toluene, 1, 2-dichloroethane, ethylbenzene, p-xylene, m-xylene, o-xylene, isopropylbenzene, chlorobenzene, styrene were 6.2-311.2, 2.0-100.0, 1.6-81.5, 5.7-282.8, 1.9-93.4, 1.7～85.4, 1.7-87.2, 2.1-103.2, 1.5-76.3, 2.2-107.3 and 1.9-96.0 ?g/L respectively. The lowest determination limit were 0.5-5.9 ?g/L, the rate of recovery were 88.8%-109.6% and RSDs were 2.2%-5.9%. Conclusion This method is simple, rapid, sensitive and can efficiently separate and accurately determine 11 kinds of VOCs in drinking water.
