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Gas Chromatographic Determination of Pentachlorophenol and Sodium Pentachlorophenate Residues in Fruits
Author(s) -
CHENG KIN WA,
KILGORE WENDELL W.
Publication year - 1966
Publication title -
journal of food science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.772
H-Index - 150
eISSN - 1750-3841
pISSN - 0022-1147
DOI - 10.1111/j.1365-2621.1966.tb01933.x
Subject(s) - pentachlorophenol , diazomethane , chemistry , chromatography , gas chromatography , ether , sodium , electron capture detector , organic chemistry
SUMMARY A sensitive procedure for the determination of pentachlorophenol and sodium pentachlorophenate residues on fruits by electron‐capture gas chromatography is described. In this method sodium pentachlorophenate is converted to pentachlorophenol in acid solution prior to analysis. The pentachlorophenol is then methylated with diazomethane, and is analyzed as the methyl ether by electron‐capture gas chromatography. As little as 0.01 ppm can be detected, with recovery values ranging from 76 to 90%.