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胶体金修饰电极测定鱼样中组胺的方法研究
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作者单位
周婵媛,赵晓娟,王春利,曾晓房,白卫东 1.仲恺农业工程学院轻工食品学院2.中华人民共和国江门海关 
基金项目:广东省科技计划项目(2016A040403116);广州市科技计划项目(201604020021)
中文摘要:基于胶体金修饰的玻碳电极,利用电流~时间曲线法建立了一种简便、灵敏的组胺检测方法。优化了底液的pH值和组胺的电化学测试方法及条件,考察了修饰电极的电化学性能。结果表明,组胺在胶体金修饰电极上的响应电流(-I,μA)与其浓度(c,μmol/L)在0.1~64 μmol/L范围内呈良好的线性关系,检出限为0.033 μmol/L,在带鱼和黄花鱼样品中的加标回收率分别为94.4%~106%、91.8%~106%,相对标准偏差分别为3.2%、2.5%。该法操作简单、检测速度快、成本低,适用于带鱼和黄花鱼等鱼样中组胺的测定。
中文关键词:组胺  胶体金  电流~时间曲线法  鱼样
 
Determination of Histamine in Fish Samples Based on Colloidal Gold Modified Electrode
Abstract:A simple and sensitive method was established for the detection of histamine by using the current-time curve based on a colloidal gold modified glass carbon electrode(AuCS/GCE).The electrochemical properties of the modified electrode were investigated.The pH value of the base solution,and the electrochemical detection methods and conditions for histamine were optimized.Results showed that there was a good linear relationship for the response current(-I,μA) of histamine on the AuCS/GCE in the concentration(c,μmol/L) range of 0.1-64 μmol/L,with the detection limit of 0.033 μmol/L.The recoveries for histamine in the hairtail and yellow croaker samples were in the ranges of 94.4%-106% and 91.8%-106%,respectively.The method was simple,rapid and low cost,and was suitable for the determination of histamine in food samples such as hairtail and yellow croaker.
Key Words:histamine  colloidal gold  current-time curve method  fish samples
引用本文:周婵媛,赵晓娟,王春利,曾晓房,白卫东.胶体金修饰电极测定鱼样中组胺的方法研究[J].分析测试学报,2019,(2):229-234.
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