Simple Method for Determining Trace Pesticides in Air Using Extraction Disks

Autor: Noboru Moriyama, Hitoshi Murayama, Hiroyuki Mukai, Hideko Mitobe
Rok vydání: 2000
Předmět:
Zdroj: Analytical Sciences. 16:257-263
ISSN: 1348-2246
0910-6340
DOI: 10.2116/analsci.16.257
Popis: A conventional method for the quantitative and simultaneous analysis of a large number of pesticides was proposed using a combination of commercial extraction disks and a quartz-fiber disk. Pesticides contained in air were collected on these disks at a flow rate of 10 l min-1 and extracted by acetone. The extracted solution was analyzed quantitatively with GC/MS. In order to evaluate the accuracy of this method, a recovery test was performed. Forty-five kinds of pesticides were spiked on the quartz-fiber disk at a concentration level of 0.2 μg by collecting 10 m3 of clean air. The recovery efficiencies of almost 40 kinds of pesticides showed more than 80%, and the coefficients of variations were less than 20%. The method was applied to a practical environmental analysis of pesticides, and an appropriate result could be obtained.
Databáze: OpenAIRE
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