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《Journal of Safety and Environment》 2006-05
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Quality assurance/quality control for monitoring and analysis of trace triazines in water

DONG Li-xian1,CHEN Ling1,LI Zhu1,GAO Hong-wen1, LI Jian-hua2(1 State Key Laboratory of Pollution Control and Resources Reuse,Shanghai 200092,China;2 Key Laboratory of Yangtze Water Environment,Tongji University,Shanghai 200092,China)  
The present paper is aimed at reporting the authors' improved effective method for monitoring six triazines(including Atrazine,Deethylatrazine,Deisopropylatrazine,Atrazine-2-hydroxy,Simazine and Prometryn)by using ENVI-18 column as a solid phase extractor and high performance liquid chromatography as an analyzer.At the same time,quality assurance and quality control(QA/QC)has also been discussed in the paper.As is known,triazine pesticides are used worldwide as herbicides to control weed-sprawling in the crop fields.Since pesticide residues are generally present in trace amounts in the environment,it is of great significance to establish an effective system for enrichment and analysis.The research results reveal that the recoveries of six triazines prove to range from 94% to 116%,while the method detection limits range from 0.08 μg/L to 0.18 μg/L.The method reproducibility and detection limits can prove to be able to meet the demand of trace analysis and QA/QC control.The given method can also be used for three environmental aquatic samples,in which no triazines exist in table-water and tap-water form.However,the water sample gained from a river proves to be contaminated by triazines.And the concentrations of atrazine and prometryn in the river have also been detected as(7.12±0.54)μg/L and(9.33±0.27)μg/L.
【Fund】: 上海市科委2005年重点研究资助专项(05DZ22330);; 国家自然科学基金项目(20477030)
【CateGory Index】: X839.2
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