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气相色谱法测定赤水河中段水体中14种有机氯农药的残留
引用本文:高庚申,滕明德,许春梅.气相色谱法测定赤水河中段水体中14种有机氯农药的残留[J].干旱环境监测,2011,25(4):193-197,202.
作者姓名:高庚申  滕明德  许春梅
作者单位:1. 贵州省环境科学研究设计院,贵州贵阳,550081
2. 山西省孝义三中,山西孝义,032300
摘    要:建立了用正己烷萃取,气相色谱—电子捕获(GC—ECD)测定水体中有机氯农药痕量残留的方法。结果表明:六氯苯、α-HCH、β-HCH、γ-HCH、δ-HCH、p,p′-DDD、p,p′-DDE、p,p′-DDT、艾氏剂、狄氏剂、异狄氏剂、七氯、环氧七氯、o,p′-DDT 14种农药在14 min内有较好的分离;2个不同浓...

关 键 词:赤水河  有机氯农药  毛细管气相色谱法

Determination of Fourteen Organochlorine Pesticides in the Middle of Chishui River by Gas Chromatography
Institution:GAO Geng - shen, TENG Ming - de, XU Chun - mei( 1. Guizhou Environmental Scientific Research and Design Institute, Guiyang Guizhou 550081, China; 2.Guizhou Province Key Labratory of Water Pollution Control and Resource Reuse, Guiyang Guizhou 550081, China;3. The Xiao Yi Third Middle School of Shanxi, Xiaoyi Shanxi 032300, China)
Abstract:In this paper, a method was established that with hexane extraction gas chromatography- electron capture (GC - ECD) to determine organocb.lorine pesticides residues in water. The result showed that HCB, α- HCH, β- HCH, γ- HCH, δ- HCH, p, p' - DDD, p, p' - DDE, p, p- DDT, aldrin, dieldrin , endrin, heptachlor, heptachlor epoxide, o, p' - DDT those 14 kinds of pesticides were good separated within 14min, the recoveries of two different concentrations standard addition was from 72.0% to 121.0 %, the range of the detection limit was from 1.19 to 4.87 ng/L, and the relative standard deviation (RSD, n = 8) was 1.34% to 3.14%. The samples were detected from 10 monitoring points where in the middle of the Chishui River, only a small part out of 14 organochlorine pesticide were detected with concentration level very low.
Keywords:Chishui river  organochlorine pesticides  capillary gas chromatography
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