中国环境监测
中國環境鑑測
중국배경감측
ENVIRONMENTAL MONITORING IN CHINA
2014年
3期
111-114
,共4页
田艳%黄宁%梁柳玲%张敏%潘泳羽%邓超冰
田豔%黃寧%樑柳玲%張敏%潘泳羽%鄧超冰
전염%황저%량류령%장민%반영우%산초빙
氯苯类化合物%五氯苯%六氯苯%吹扫捕集%气相色谱-质谱联用法
氯苯類化閤物%五氯苯%六氯苯%吹掃捕集%氣相色譜-質譜聯用法
록분류화합물%오록분%륙록분%취소포집%기상색보-질보련용법
chlorobenzenes%pentachlorobenzene%hexachlorobenzene%purge and trap%GC/MS
采用吹扫捕集-气相色谱质谱联用法测定地表水中的12种氯苯类有机污染物，特别是一些半挥发性的多氯苯化合物如五氯苯、六氯苯等。在室温下分析时，当进样体积为25.0 mL，吹扫时间为11 min，解析时间为3 min，采用全扫描方式定量分析时，方法检出限为0.02~1.50μg/L。不同浓度水平的加标回收率为86.0％~113％，相对标准偏差为1.3％~17.5％；实际样品加标回收率为84.4％~119％，相对标准偏差为2.2％~18.9％。该法具有简便高效、灵敏度高、有机溶剂用量少等优点，适用于饮用水和地表水中氯苯类化合物的测定，并为突发性环境污染事件氯苯类有机物的快速响应提供了一种快速有效的检测方法。
採用吹掃捕集-氣相色譜質譜聯用法測定地錶水中的12種氯苯類有機汙染物，特彆是一些半揮髮性的多氯苯化閤物如五氯苯、六氯苯等。在室溫下分析時，噹進樣體積為25.0 mL，吹掃時間為11 min，解析時間為3 min，採用全掃描方式定量分析時，方法檢齣限為0.02~1.50μg/L。不同濃度水平的加標迴收率為86.0％~113％，相對標準偏差為1.3％~17.5％；實際樣品加標迴收率為84.4％~119％，相對標準偏差為2.2％~18.9％。該法具有簡便高效、靈敏度高、有機溶劑用量少等優點，適用于飲用水和地錶水中氯苯類化閤物的測定，併為突髮性環境汙染事件氯苯類有機物的快速響應提供瞭一種快速有效的檢測方法。
채용취소포집-기상색보질보련용법측정지표수중적12충록분류유궤오염물，특별시일사반휘발성적다록분화합물여오록분、륙록분등。재실온하분석시，당진양체적위25.0 mL，취소시간위11 min，해석시간위3 min，채용전소묘방식정량분석시，방법검출한위0.02~1.50μg/L。불동농도수평적가표회수솔위86.0％~113％，상대표준편차위1.3％~17.5％；실제양품가표회수솔위84.4％~119％，상대표준편차위2.2％~18.9％。해법구유간편고효、령민도고、유궤용제용량소등우점，괄용우음용수화지표수중록분류화합물적측정，병위돌발성배경오염사건록분류유궤물적쾌속향응제공료일충쾌속유효적검측방법。
A protocol for the rapid determination of twelve chlorobenzenes( CBs) in surface water was developed based on purge and trap-gas chromatography/mass spectrometry, which could be extended to the determination of some semi-volatile CBs such as pentachlorobenzene and hexachlorobenzene. The effects of purge temperature and purge time and detection limits were investigated. When the sample was purged under room temperature for 11 minutes and the injection volume was 25. 0 ml with deabsorbing time for 3 minutes using scan mode as quantitative analysis, the detection limits reached as low as 0. 01-1. 50μg/L. Recoveries in pure water were 86. 0%-113% with the RSD of 1. 3%-17. 5%. Recoveries in spiked surface water samples were 84. 4%-119% with the RSD of 2. 2%-18. 9%. This technology has the advantages such as easy to operate with high sensitivity, fast and toxic organic solvents free. The method affords an effective way for the determination of CBs in drinking and surface water especially in emergency.
