Determination of tri-n-butyltin in oysters by reaction-gas chromatography of hydride derivatives |
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| Authors: | Hungerford J M Walker K D Torkelson J D Steinbrecher K Wekell M M |
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| Affiliation: | Seafood Products Research Center, U.S. Food and Drug Administration, 22201 23rd Dr. S.E., P.O. Box 3012, Bothell, WA 98041-3012, U.S.A. |
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| Abstract: | A reaction-gas chromatography method for determining tri-n-butyltin (TBT) as the hydride derivative has been adapted to allow determination of TBT in oysters. The extraction method has been modified to prevent fouling of the hydride formation reactor and the gas chromatography has been made faster by employing a different column and temperature program. The detection limit is 3-6 ng/g in oyster tissue. Apparent recoveries of TBT from oyster tissue at 25 and 125 ng/g levels are 107 and 97%, respectively. |
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