比色计法快速检测食糖产品中硝酸盐和亚硝酸盐  

Rapid detection of nitrate and nitrite in beet sugar by portable colorimeter

作　　者：张双虹 赵金力 吴子毅 耿勤 王健 王宝 赵抒娜 ZHANG Shuang-hong;ZHAO Jin-li;WU Zi-yi;GENG Qin;WANG Jian;WANG Bao;ZHAO Shu-na(COFCO Sugar Co.,Ltd.,Key Laboratory of Quality&Safety Control for Sugar Crops and Tomato,Ministry of Agriculture of the PRC,Changji 831100;COFCO Nutrition and Health Research Institute Co.,Ltd.,Beijing Engineering Laboratory of Geriatric Nutrition&Foods,Beijing Key Laboratory of Nutrition&Health and Food Safety,Beijing 102209)

机构地区：[1]中粮屯河糖业股份有限公司,农业部糖料与番茄质量安全控制重点实验室,新疆昌吉831100 [2]中粮营养健康研究院有限公司,老年营养食品研究北京市工程实验室,营养健康与食品安全北京市重点实验室,北京102209

出　　处：《中国食品添加剂》2020年第9期85-91,共7页China Food Additives

基　　金：新疆昌吉自治州协同创新(科技支疆)项目(2019C03);2016年新疆自治区高层次人才引进工程计划;中国博士后科学基金61批面上自主“西部地区博士后人才资助计划”(2017M613312XB);特殊保障食品制造关键技术研究及新产品创制(2017YFD0400500)。

摘　　要：通过国家标准方法和快速检测方法测定水溶液、糖溶液、食糖产品中的硝酸盐和亚硝酸盐含量,对快速检测方法检测硝酸盐和亚硝酸盐含量的精确性和回收率进行分析。结果表明快速检测方法测定硝酸盐水溶液的回收率为94.5%~104.25%,亚硝酸盐水溶液的回收率为100.83%~110.00%,快速检测方法和国家标准方法测定食糖产品的硝酸盐含量两种方法间的相对偏差小于10%,测定食糖产品的亚硝酸盐含量两种方法间的相对偏差小于4%,且两种方法的检测结果无显著差异,符合国家标准要求。快速检测方法用于食糖产品中硝酸盐和亚硝酸盐的快速定量测定结果准确稳定,可在各大糖厂推广使用,对规范产品检验方法和提高生产效率具有积极意义。The contents of nitrate and nitrite in water solution,sugar solution and white granulated sugar were determined by the national standard method and a rapid detection method,and the accuracy and recovery rate of the rapid detection method were analyzed. The results showed that the recovery rate of nitrate water solution was 94.5% ~ 104.25%,the recovery rate of nitrite water solution was 100.83% ~ 110.00%. For determination of nitrate and nitrite content of white granulated sugar,the relative deviation between the national standard method and the rapid detection method is less than 10% and 4%,respectively. The test results of two methods had no significant difference,as to meet the requirements of national standards. The rapid detection method is suitable for the determination of nitrate and nitrite in white granulated sugar in manufacturing sugar factories,and the results are accurate and stable. It has a positive significance for standardizing product inspection methods and improving production efficiency.

关 键 词：硝酸盐 亚硝酸盐 定量检测 快速方法 白砂糖 

分 类 号：TQ619.8[化学工程—精细化工]