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

• 分析检测 • 上一篇    下一篇

气相色谱-火焰光度法测定白酒中三丁基锡和三苯基锡

李 娟1,申明月1,鄢爱平1,郭 岚1,万益群1,2,*   

  1. 1.南昌大学 分析测试中心 2.南昌大学 食品科学与技术国家重点实验室
  • 收稿日期:2010-06-25 出版日期:2010-12-25 发布日期:2010-12-29
  • 通讯作者: 万益群1 E-mail:yqwanoy@sina.com
  • 基金资助:

    国家自然科学基金项目(20765002;20965005);江西省科技支撑计划项目(2008BB22400);
    食品科学与技术国家重点实验室目标导向资助项目(SKLF-M200807);
    食品科学与技术国家重点实验自由探索资助项目(SKLF-TS-200918)

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

摘要:

建立气相色谱法同时分析白酒中三丁基锡(TBT)和三苯基锡(TPhT)。样品经正己烷萃取,四乙基硼酸钠衍生化,气相色谱- 火焰光度法(GC-FPD)进行检测,并对影响测定的各种因素进行探讨。在0.1~10.0mg/L 质量浓度范围内,TBT、TPhT 的吸收峰面积与质量浓度线性关系良好,线性相关系数分别为0.9990、0.9995,检测限分别为0.0375、0.0489mg/L。在0.5、5.0、10.0mg/L 三个添加水平下,TBT、TPhT 的平均回收率为89.8%~100.9%,相对标准偏差为4.15%~9.04%。该方法用于白酒中有机锡化合物的分析,结果良好。

关键词: 三丁基锡, 三苯基锡, 气相色谱- 火焰光度法, 白酒

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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