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  • Title: [Determination of Tributyltin and Triphenyltin in Fish and Shellfish Using Accelerated Solvent Extraction and Liquid Chromatography with Tandem Mass Spectrometry].
    Author: Hayashi M, Tamura Y, Otani H, Morioka M, Sasamoto T, Hashimoto T.
    Journal: Shokuhin Eiseigaku Zasshi; 2020; 61(6):223-228. PubMed ID: 33390530.
    Abstract:
    A determination method for tributyltin (TBT) and triphenyltin (TPT) in fish and shellfish using an accelerated solvent extractor (ASE) and LC-MS/MS was developed. The chromatographic separation was conducted on a Poroshell 120 EC-C18 column using an isocratic mobile phase of 0.1% formic acid in 70% methanol. Sample preparation was performed using ASE at 125℃ with n-hexane and a cleanup using a Florisil cartridge. Internal calibration curves using deuterium-labeled TBT and TPT were employed for quantification. For both TBT and TPT, the calibration curves were linear in the range of 0.2-250 ng/mL, and the method quantification limits were 0.8 ng/g for both TBT and TPT. A National Institute for Environmental Studies certified reference material, No. 15 (adductor muscle of scallop), was analyzed to assess the performance of the developed method. The trueness, relative standard deviations of repeatability, and within laboratory reproducibility of this method, evaluated using a recovery test with four spiked fish species and one shellfish, ranged from 89.3 to 105.3%, 1.0 to 4.5%, and 1.3 to 7.6%, respectively.
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