MONITORING OF PESTICIDES IN AIR BY GAS-CHROMATOGRAPHY MASS-SPECTROMETRY AND THE USE OF QUARTZ-FIBER WOOL AND ACTIVATED CARBON FOR SAMPLING

被引:29
作者
KAWATA, K [1 ]
MUKAI, H [1 ]
YASUHARA, A [1 ]
机构
[1] NATL INST ENVIRONM STUDIES,TSUKUBA,IBARAKI 305,JAPAN
关键词
D O I
10.1016/0021-9673(95)00138-D
中图分类号
Q5 [生物化学];
学科分类号
071010 ; 081704 ;
摘要
A simple monitoring method has been developed to determine the mean concentrations of pesticides in air over a period of one week. The pesticides investigated were buprofezin, edifenphos, ethofenprox, fenitrothion, fenobucarb, fenthion, flutolanil, fthalide, malathion, pencycuron, phentoate, pyridaphenthion, tetrachlorvinphos and tricyclazole. The pesticides were collected using quartz-fibre wool and activated carbon and eluted with acetone and toluene-ethanol (4:1, v/v). The eluate was reduced to a small volume and an acetone solution of the internal standards 1,4-diiodobenzene and 9-bromoanthracene was added for gas chromatography-mass spectrometry (GC-MS). Recoveries of the pesticides, indicating the overall performance of this method, ranged from 82.4 to 94.6%. The minimum detectable concentrations ranged from 0.1 ng/m(3) to 1 ng/m(3). This method has been successfully applied to the monitoring of pesticides in air over a rural area near paddy fields.
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页码:243 / 250
页数:8
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