氰化物纸片快速测定食品中的氰化物  

Fast determination of cyanide by paper disk method

作　　者：杨俊[1] 陈亿展[1] 孟令兵[1] 赖小丽[1] 李意[1] 

机构地区：[1]广东省深圳市计量质量检测研究院,广东深圳518131

出　　处：《中国卫生检验杂志》2012年第10期2325-2327,共3页Chinese Journal of Health Laboratory Technology

摘　　要：目的:建立食品中氰化物的纸片速测法并应用于重大活动保障中。方法:食品中的氰化物经水浸取后,与氯胺T反应生成氯化氰,继而与异烟酸反应,并经水解而成戊烯二醛,最后与1,3—二甲基巴比妥酸作用生成紫蓝色化合物,比色定量。结果:方法检出限为1.00 mg/kg,准确度和精密度都较为理想。结论:氰化物纸片速测法具有灵敏度高,快速,携带方便的特点,适合于重大活动保障中氰化物的快速测定。Objective： To establish a method for fast determination of cyanide in food by paper disk method in im- portant Activities. Methods ： Cyanide in food was leached with water, and then reacted with chloramine T to form cy- anochloride which reacted with isonicotinic acid, the product was hydrolyed to glutaconaldehyde, and finally it reacted with 1,3 - dimethyl barbituric acid to form a violet blue compound. The content of cyanide was quantitated colorime- trically. Results： The detection limit of the method was 1.00 mg/kg, the recoveries and the precision were satisfac- tory. Conclusion： The method was sensitive, fast and convenient. It is suitable to determine cyanide in food in im- portant Activities.

关 键 词：氰化物 速测 重大活动保障 

分 类 号：O656.2[理学—分析化学]