锌粒还原法快速测定食品中的硝酸盐  

Fast determination of nitrate content in food by zinc particle deoxidization method

作　　者：肖义夫[1] 廖百森[1] 赵舰[1] 王正虹[1] 邱宏[1] 陈静[1] 

机构地区：[1]重庆市疾病预防控制中心,重庆400042

出　　处：《中国食品卫生杂志》2003年第4期316-317,共2页Chinese Journal of Food Hygiene

摘　　要：目的 :建立食品中硝酸盐的快速测定方法。方法 :用锌粒作还原剂 ,在银离子催化下将食品中的硝酸盐还原成亚硝酸盐 ,然后按亚硝酸盐的测定方法测定。结果 :该方法的相对标准差低于 5 % ,平均回收率 94 0 %。结论 :运用该方法能对食品中的硝酸盐进行准确而快速的测定。Objective:Developing the method that used to determine the nitrate content in food rapidly.Method:The nitrate in food was reduced into nitrite by the zine particle with the Ag+ as the catalyst.Result:Coefficient of variation of the results was below 5%.The average recovery was >94%.Conclusions:The application of the method can determine the nitrate in food rapidly.

关 键 词：锌粒还原法 测定 食品 硝酸盐 重现性 准确度 

分 类 号：TS207[轻工技术与工程—食品科学]