Monitor Organophosphorus Pesticides in Air, Using ORBO-49P Tubes and Capillary GC

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Courtesy of Sigma-Aldrich Co., LLC

A sampling tube containing Supelpak-20 resin and a glass fiber filter effectively adsorbs and releases five organophosphorous pesticides (chlorpyrifos, diazinon, dichlorvos, malathion, parathion) in vapor or aerosol form in air.  At a sampling rate of 1L/min, 8 hour samples can be taken for all of these pesticides except malathion.  Short term (15 min) samples can be taken at the same sampling rate.  Analysis on a 0.53mm ID SPB-20 capillary column ensures reliable quantification of these analytes.

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