Measuring eleven kinds of chlorobenzenes and hexachlorobutadiene in drinking water by HS-GC
- VernacularTitle:顶空气相色谱法测定饮用水中11种氯苯类化合物及六氯丁二烯
- Author:
Ye XI
1
;
Rong ZHENG
;
Ming ZHAN
Author Information
1. 上海市浦东新区疾病预防控制中心
- Keywords:
HS-GC;
chlorobenzenes;
hexachlorobutadiene;
drinking water
- From:
Shanghai Journal of Preventive Medicine
2017;29(1):44-47,53
- CountryChina
- Language:Chinese
-
Abstract:
Objective To apply the HS-GC method to measure eleven kinds of chlorobenzenes and hexachlorobutadiene in drinking water . Methods We put 10 mL water sample into a 20 mL vial containing 2.5 g sodium chloride .The vial was stirred at 80℃ for 15 mins prior to headspace sampling . Eleven kinds of chlorobenzenes were separated completely by Rtx-1 701 capillary column(30.00 m ×0.25 mm ×0.25 μm),detected by electron capture detectors . Results The linearity of the method ranged from 1.00-32.00 μg/L, 0.20-6.40 μg/L, 0.05-1.60 μg/L, 0.02-0.64 μg/L, 0.02-0.64 μg/L and 0 .01-0 .32 μg/L for dichlorobenzene isomers , trichlorobenzene isomers , tetrachlorobenzene isomers , pentachlorobenzene , hexachlorobenzene and hexachlorobutadiene .In case of a 10 mL water sample , the lowest detected range of mass concentration was 0.001 62-0.262 00 μg/L.The additional standard recovery rate of finished water samples was in the range of 80%-119%with the relative standard deviation (RSD) in the range of 2.24%-4.99%. Conclusion This method is simple, fast, sensitive and needs no organic solvents .It is suitable for measuring both chlorobenzene compounds and hexachlorobutadiene in drinking water simultaneously .
