title: [Residue level of HCHs in chicken].
abstract: The concentrations of hexachlorocyclohexane isomers (HCHs) in muscle, skin, liver, stomach, heart, eggs, feed and feces of chicken from a poultry farm were determined by GC-ECD. The residue level of total HCHs (SigmaHCHs) in muscle, skin, liver, stomach and heart were (0.35 +/- 0.37), (3.91 +/- 2.52), (1.78 +/- 1.26), (1.00 +/- 0.85), (1.35 +/- 0.75) ng/g (wet weight), while the lipid normalized concentrations were (64.3 +/- 171), (19.6 +/- 7.33), (64.9 +/- 27.2), (74.5 +/- 74.1), (17.8 +/- 4.42) ng/g, respectively,which are far lower than the Maximum Residue Limits for Food in China. Among all tissue samples, the highest lipid-normalized concentration was observed in the liver and no significant differences were observed among other organs. delta-HCH was the predominant isomer in chicken feed, stomach and faces, while beta-HCH owned the highest concentration in all other samples. beta-HCH was enriched in muscle, skin, liver, stomach and heart, while alpha-HCH and delta-HCH were also enriched in liver. Significant difference was revealed between male and female chicken in terms of bioaccumulation, indicating higher bioaccumulation ability of the former.
authors.affiliation: Key Laboratory for Earth Surface Processes, Ministry of Education, College of Urban and Environmental Sciences, Peking University, Beijing 100871, China. zhoudx@pku.edu.cn
authors.forename: Dong-Xu
authors.initials: DX
authors.lastname: Zhou
authors.forename: Xiao
authors.initials: X
authors.lastname: Li
authors.forename: Yi-Feng
authors.initials: YF
authors.lastname: Yang
authors.forename: Da-Pan
authors.initials: DP
authors.lastname: Yue
authors.forename: Zhi-Gang
authors.initials: ZG
authors.lastname: Liu
authors.forename: Qian
authors.initials: Q
authors.lastname: Zhang
authors.forename: Tian-Jia
authors.initials: TJ
authors.lastname: Guan
authors.forename: Yu
authors.initials: Y
authors.lastname: Yang
authors.forename: Wen-Tao
authors.initials: WT
authors.lastname: Wang
authors.forename: Jun
authors.initials: J
authors.lastname: Cao
authors.forename: Shu
authors.initials: S
authors.lastname: Tao
mesh_terms: D000818:Animals; D002645:Chickens / Q000378:metabolism*; D002681:China; D005506:Food Contamination / Q000032:analysis*; D001556:Hexachlorocyclohexane / Q000032:analysis* / Q000378:metabolism; D010573:Pesticide Residues / Q000032:analysis* / Q000378:metabolism
chemical_list: D010573:Pesticide Residues; D001556:Hexachlorocyclohexane; C023888:beta-hexachlorocyclohexane