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Issue:
Determination of synthesized pyrethroids in water by capillary gas chromatography
Author(s):
HU Guanjiu
,
LIU Jianlin
Pages:
45
-
46
Year:
2001
Issue:
2
Journal:
ENVIRONMENTAL MONITORING IN CHINA
Keyword:
水样
;
拟除虫菊酯杀虫剂
;
毛细管柱
;
气相色谱
;
测定
;
Abstract:
采用石油醚萃取水样,萃取液经氮气吹扫浓缩后,用气相色谱仪对水样中拟除虫菊酯杀虫剂--甲氰菊酯、三氟氯氰菊酯(功夫)、高效氯氰菊酯、氰戊菊酯、溴氰菊酯进行了定量测定.由于毛细管柱的高柱效和微池ECD的高灵敏度,使得上述目标组分与水样中的其它杂质能达到较好的分离,即使含量极低也能被检出.本方法省去了样品萃取液的净化处理这一步骤,可较快地测定拟除虫菊酯杀虫剂,在污染事故应急监测方面具有实用性.
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