| 白酒中氰化物含量测定及其不确定度评定 |
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| 引用本文： | 吴小松,曹玉发,姜雪,苏媛媛.白酒中氰化物含量测定及其不确定度评定[J].中国酿造,2013,32(5):82. |
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| 作者姓名： | 吴小松 曹玉发 姜雪 苏媛媛 |
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| 作者单位： | 国家白酒产品质量监督检验中心,江苏宿迁223800;宿迁市产品质量监督检验所,江苏宿迁223800 |
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| 摘 要： | 建立了异烟酸-巴比妥酸测定白酒中氰化物的方法,并对该法进行验证,对测定结果的不确定度进行评定.结果表明在0～2.0μg/mL范围内,吸光度对氰离子含量线性关系良好(R=0.9993),回收率在92％～95％,RSD为3.56％,酒样中氰化物含量为(0.2l±0.008) μg/mL (k=2).本方法较国标方法操作简便、快捷,且克服了国标法中显色液浑浊、回收率低等问题,可作为白酒中氰化物检测的较好方法.
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| 关 键 词： | 氰化物 白酒 异烟酸 巴比妥酸 不确定度 |
Determination of cyanide content in Chinese spirits and its uncertainty assessment |
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| WU Xiaosong,CAO Yufa,JIANG Xue,SU Yuanyuan.Determination of cyanide content in Chinese spirits and its uncertainty assessment[J].China Brewing,2013,32(5):82. |
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| Authors: | WU Xiaosong CAO Yufa JIANG Xue SU Yuanyuan |
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| Affiliation: | 1.National Liquor Product Quality Supervision and Testing center, Suqian 223800, China;
2.Suqian Product Quality Supervision and Testing Institute, Suqian 223800, China |
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| Abstract: | To establish the isonicotinic acid-barbituric acid method for the determination of cyanide in Chinese spirits, and also validates the method, and assess the uncertainty of determination results. Results showed that the liner range of cyanide was 0~2.0μg/mL（R 2=0.9993）, the recovery rate was 92%~95%, RSD was 3.56%, and cyanide in the sample was（0.21±0.008）μg/ml(k=2). Compared with the national standard method, this method is simple, rapid, and overcomes the problem of color liquid turbidity and low recovery rate. It could be a better detection method of cyanide in Chinese spirits. |
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| Keywords: | cyanide Chinese spirits isonicotinic acid barbituric acid uncertainty |
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