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Journal of AOAC International

Multiresidue determination of pesticides in lanolin using matrix solid-phase dispersion.


PMID 20480919

Abstract

An efficient, fast, and accurate matrix solid-phase dispersion sample cleanup procedure was developed specifically for the determination of pesticide residues in lanolin. The scope of the method for organophosphorus, organochlorine, and pyrethroid insecticides is the same as that of official methods from various pharmacopeias. After lanolin dispersion on C18 bonded silica, pesticides are eluted with acetonitrile saturated with n-hexane. Recoveries ranged from 83 to 118% with RSD values of < 20% for most pesticides listed, in compliance with the requirements of European and U.S. pharmacopeias.

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L7387 Lanolin
49909 Lanolin, tested according to Ph.Eur.