FOOD SCIENCE ›› 2010, Vol. 31 ›› Issue (24): 246-249.doi: 10.7506/spkx1002-6630-201024052

• Analysis & Detection • Previous Articles     Next Articles

Use of Gas Chromatography with Flame Photometric Detection for Determination of Tributyltin and Triphenyltin in White Spirit

LI Juan1，SHENG Ming-yue1，YAN Ai-ping1，GUO Lan1，WAN Yi-qun1,2,*   

  1. 1. Center of Analysis and Testing, Nanchang University, Nanchang 330047, China ；
    2. State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China
  • Received:2010-06-25 Online:2010-12-25 Published:2010-12-29
  • Contact: WAN Yi-qun E-mail:yqwanoy@sina.com

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Abstract:

A method was developed for simultaneous determination of tributyltin (TBT) and triphenyltin(TPhT) in white spirit by using gas chromatography-flame photometry detection (GC-FPD). The sample was extracted by hexane, and derivatived by NaBEt4. The various factors influencing analysis results were investigated. The results present the good linearities between analytical signal and analyte concentration in the range of 0.1－10.0 mg/L with the correlation coefficients of 0.9990, 0.9995. For TBT and TPhT, limits of detection are 0.0375, 0.0489 mg/L, respectively. The average recoveries of TBT and TPhT at the spike levels of 0.5, 5.0 mg/L and 10.0 mg/L are in the range of 89.8%－100.9%, with the relative standard derivation of 4.15%－9.04%. A satisfactory result was obtained in the determination of organotin compounds in white spirit.

Key words: tributyltin, triphenyltin, gas chromatography-flame photometry, white spirit

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