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 CLP Pesticide Standards
The USEPA Contract Laboratory Program (CLP) is a contract trhough which the USEPA may retain analytical services. The CLP contracts contain detailed operating procedures to be followed by those laboratories which are awarded the contracts. The methods arederived from SW-846 and the USEPA-Office of Research and Development. Many state and federal agencies look to the CLP methods for guidance in terms of analytical parameters as a result of the large body of performance data which has been generated tovalidate the CLP methods. The CLP Pesticide analysis method, from the OLM04.1, is an analytical method which utilizes a methylene chloride extraction of aqueous sample or a methylene chloride: acetone extraction of 30 grams of solid sample,concentrated after clean-up to 10 mL and a gas chromatograph equipped with a packed column to perform the separation of pesticides and PCB's. To detect the GC eluant, an ECD is used.