期刊
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
卷 48, 期 3, 页码 797-801出版社
AMER CHEMICAL SOC
DOI: 10.1021/jf990331z
关键词
essential oils; organochlorine insecticides; gas chromatography
Organochlorine pesticide contamination in 148 lemon essential oils, 123 sweet orange oils, 121 mandarin oils, and 147 bergamot oils produced in Italy in the years 1991-1996 was studied by HRGC-ECD. Confirmation analyses were carried out by CC-MS. Tetradifon, dicofol and its decomposition product 4,4'-dichlorobenzophenone were found. Over the course of the study dicofol and tetradifon residues steadily decreased; the percentage of contaminated samples reflects this course and decreases considerably from 1991 to 1996.
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