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投稿时间：2019-10-21
投稿时间：2019-10-21
中文摘要: 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0～0.500 μg/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。
Abstract: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 0-0.500 μg/mL，the standard curve of the method had good linearity，and the correlation coefficient was 0.999 6.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.
keywords: flow injection analysis cyanide food steam distillation
文章编号：202019028 中图分类号： 文献标志码：
基金项目:海关总署科技计划项目（2018IK003）
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