氢化物-原子荧光法测定反应香精中的汞  

Determination of Mercury through Hydride Generation-Atomic Fluorescence Spectrum in Process Flavouring

作　　者：武晓剑[1] 李琼[1] 费玠 王丽芳[3] 

机构地区：[1]上海应用技术学院 [2]上海香料研究所,上海200232 [3]东华大学,上海201620

出　　处：《香料香精化妆品》2008年第1期9-11,共3页Flavour Fragrance Cosmetics

基　　金：上海市教委基金资助项目(NO.05D205009)

摘　　要：建立了用氢化物原子荧光法测定反应香精中的重金属汞，考察了前处理方法和原子荧光仪器对实验结果的影响，最后确定了消解试剂为6：2的硝酸和双氧水，微波消解最高温度为210℃，消解时间为25min；原子荧光的还原剂为20g／L的硼氢化钾，载流液为5％的盐酸。用以上最优化条件对反应香精进行测定，得到汞的回收率范围为99．2％～110．0％。A method for hydride generation atomic fluorescence spectrometry determination of mercury in process flavoring has been proposed, the pre-treatment and the equipment which influenced the experiment were studied and determined, the best conditions were： HNO3 ： H2O2 = 6 ： 2 was used as digestion reagent, the highest temperature of digestion was 210℃, the time was 25min the concentration of used KBH4 was 20g/L as reducer, the carrier was 5 % HCI. Process flavorings were analyzed by the optimizing experimental conditions, the recovery range of mercury was 99.2% to 110.0%.

关 键 词：氢化物-原子荧光法 反应香精 汞 

分 类 号：TS207.3[轻工技术与工程—食品科学]