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This document describes Method 5008 for sampling and measuring pyrethrum, an insecticide, in air. It involves collecting pyrethrum on a glass fiber filter using a pump operating between 1-4 L/min for 20-400 L. The filter is extracted in acetonitrile and the extract analyzed by high performance liquid chromatography with UV detection. The method has a range of 0.5-10 mg/m3 for a 200 L sample with 13.8% accuracy and 0.070 precision. It is a revised version of Method S298 that was validated over 1.4-8.5 mg/m3.

Author

Boss Vina

Language

EN