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  • Title: Partition chromatographic separation of pesticide residues from fats.
    Author: Dale WE, Miles JW.
    Journal: J Assoc Off Anal Chem; 1976 Jan; 59(1):165-8. PubMed ID: 1249032.
    Abstract:
    A simple, rapid, and efficient partitioning column consisting of acetonitrile on Florisil has been developed for the separation of pesticides from fish, beef, and butter fat. The efficiency of the cleanup column is between 97 and 100%. Nine pesticides having partition coefficients between n-hexane and acetonitrile of less than or equal to 0.05 were satisfactorily separated from fat with good recoveries. When the column was used to clean up temephos in a fish extract, 99.91% of the fat was eluted with 20 ml n-hexane with no loss of the pesticide.
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