孙博;范立民;裘丽萍;瞿建宏;郑尧;陈家长;

• 1:南京农业大学无锡渔业学院
• 2:中国水产科学研究院淡水渔业研究中心中国水产科学研究院内陆渔业生态环境和资源重点开放实验室

摘要(Abstract)：

建立了以离子色谱法测定水产品中溴离子质量比的方法,并用该方法检测了二溴海因作用于吉富罗非鱼后所产生的溴离子在肌肉中残留及消解的质量比。检测时采用Cs12A阴离子柱分离,电导检测,溴离子质量比为10²00 mg/kg,决定系数R2=0.9963。结果表明:1)样品添加30 mg/kg和50 mg/kg时,Br-的平均回收率分别为82.58%和86.14%,相对标准偏差为4.61%和6.54%。因此,该方法可以应用于水产品中溴离子的定量分析;2)二溴海因质量浓度为0200 mg/kg,决定系数R2=0.9963。结果表明:1)样品添加30 mg/kg和50 mg/kg时,Br-的平均回收率分别为82.58%和86.14%,相对标准偏差为4.61%和6.54%。因此,该方法可以应用于水产品中溴离子的定量分析;2)二溴海因质量浓度为0⁰.3 mg/L时,肌肉中未检出溴离子;二溴海因质量浓度为1.5 mg/L时,肌肉中溴离子质量比呈时间-效应关系,即溴离子质量比随时间的延长而增加,第16 d时溴离子在肌肉中质量比达最大21.6 mg/kg,符合国际食品法典的规定。在清水中恢复10 d后,肌肉中溴离子的质量比降低。可见,实际生产中若二溴海因的施药剂量为0.30.3 mg/L时,肌肉中未检出溴离子;二溴海因质量浓度为1.5 mg/L时,肌肉中溴离子质量比呈时间-效应关系,即溴离子质量比随时间的延长而增加,第16 d时溴离子在肌肉中质量比达最大21.6 mg/kg,符合国际食品法典的规定。在清水中恢复10 d后,肌肉中溴离子的质量比降低。可见,实际生产中若二溴海因的施药剂量为0.3⁰.4mg/L,则肌肉中溴离子对人类几乎没有威胁。

关键词(KeyWords)： 环境学;离子色谱;溴离子;二溴海因;吉富罗非鱼

Abstract:

Keywords:

基金项目(Foundation): 现代农业产业技术体系专项(CARS-49);; 国家农产品质量安全风险评估项目(GJFP201501004)

作者(Authors): 孙博;范立民;裘丽萍;瞿建宏;郑尧;陈家长;

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