快速水蒸气蒸馏-流动注射分析仪联用测定食品中氰化物  

Determination of Cyanide in Food by Rapid Steam Distillation-Flow Injection Analysis

作　　者：马兴 张密密 肖亚兵 赵友全[2] MA Xing;ZHANG Mi-mi;XIAO Ya-bing;ZHAO You-quan(Animal and Plant and Foodstuffs Inspection Center,Tianjin Customs,Tianjin 300461,China;College of Precision Instrument and Opto-Electronics Engineering,Tianjin University,Tianjin 300072,China)

机构地区：[1]天津海关动植物与食品检测中心,天津300461 [2]天津大学精密仪器与光电子工程学院,天津300072

出　　处：《食品研究与开发》2020年第19期162-165,共4页Food Research and Development

基　　金：海关总署科技计划项目(2018IK003)。

摘　　要：建立快速水蒸气蒸馏仪提取食品样品中的氰化物,流动注射分析仪测定馏出液中氰化物含量的方法。结果表明:在0~0.500μg/mL质量浓度范围内,方法标准曲线线性良好,相关系数为0.999 6,当取样量为20 g,定容体积为250 mL时,方法检出限为0.014 mg/kg。利用该方法和国标方法同时对实际样品进行检测,所得结果相对偏差均小于10%。该方法重复性好,回收率稳定,能够满足实际检测的要求。A method for determining cyanide in food using rapid steam distillation combined with flow injection analyzer was established.The results showed that within the mass concentration range of 0-0.500μg/mL,the standard curve of the method had good linearity,and the correlation coefficient was 0.9996.When the sample amount was 20 g and the volume was 250 mL,the detection limit of the method was 0.014 mg/kg.The method and the national standard method were used to simultaneously detect the actual samples,and the relative deviation of the results was less than 10%.The repetitive determination of the actual samples showed that the precision and recovery of the standard addition were in good order to meet the actual detection requirements.

关 键 词：流动注射法 氰化物 食品 水蒸气蒸馏 

分 类 号：TS207.3[轻工技术与工程—食品科学]