离子色谱法检测马铃薯及其淀粉中氢氰酸  

Determination of cyanide in potato and its starch by ion chromatography

作　　者：史立学[1] 周围 王波 张慧荣[3] 苑春莉[3] 

机构地区：[1]甘肃农业大学食品科学与工程学院,兰州730070 [2]甘肃出入境检验检疫局综合技术中心,兰州730000 [3]西北师范大学地理与环境科学学院,兰州730070

出　　处：《分析试验室》2012年第9期118-120,共3页Chinese Journal of Analysis Laboratory

摘　　要：建立了马铃薯及其淀粉中氰化物离子色谱的检测方法。样品经超声、冷冻离心、通过在线过滤处理后直接用离子色谱进行检测。检出限为0.054 mg/L,氰化物的线性范围为0.136～2.72 mg/L;加标回收率为85%～93%;相对标准偏差(RSD)为1.2%,可以满足氰化物检测的要求。The hydro cyanic acid exists in the potato and the starch, has the fierce toxicity, to the human, the livestock creates the severe impairment. A new method was developed for the determination of cyanide in potato and its starch by ion chromatography （IC） , the samples were refrigerated and centrifuged, after processing by the ＂Inline＂ were detected by ion chromatography, the calibration curves were linear in range of 0. 136 2.72 mg/L. The spiked recoveries were in the range of 85% - 93% , the detection limit of cyanide was 0. 054 mg/L, and the relative standard deviation was 1.2%, As a conclusion, it is applicable for the determination of cyanide in potato and its starch.

关 键 词：氰化物 离子色谱 马铃薯 

分 类 号：O657.7[理学—分析化学]