Simultaneous determination of butyltin and phenyltin compounds in oysters by capillary gas chromatography.
A method is described for the simultaneous determination of butyl- and phenyltin compounds in oyster samples. The organotin compounds were extracted (as chlorides) from oyster homogenates with hydrochloric acid and benzene in the presence of 0.05% tropolone. These compounds were converted into pentyl derivatives with pentyl Grignard reagent and then analysed by capillary gas chromatography with a flame photometric detector equipped with a 393-nm filter. The recoveries of six organotin compounds added to oyster samples ranged from 71 to 74%. The detection limits of butyl- and phenyltin compounds were in the 5-9 pg range as tin. We detected significant amounts of three organotin compounds (di- and tributyltin and triphenyltin) in oyster samples.
Ohhira
S
S
Department of Hygiene, Dokkyo University School of Medicine, Tochigi, Japan.
Matsui
H
H
D000818:Animals; D002138:Calibration; D002849:Chromatography, Gas / Q000379:methods; D005410:Flame Ionization / Q000379:methods; D008433:Mathematics; D009947:Organotin Compounds / Q000032:analysis*; D010125:Ostreidae / Q000032:analysis*
D009947:Organotin Compounds