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投稿时间:2017-05-18
投稿时间:2017-05-18
中文摘要: 首次建立同时测定饮品中8种食品添加剂(苯甲酸、山梨酸、糖精钠、安赛蜜、脱氢乙酸、咖啡因、阿斯巴甜、纳他霉素)的高效液相色谱法。试验中,样品经水溶后,加入乙酸锌与亚铁氰化钾溶液沉蛋白处理,采用C18色谱柱,以甲醇和乙酸铵溶液(0.02 mol/L)为流动相进行梯度洗脱分离,流速1.0 mL/min,测定波长210 nm和305 nm,进样量10 μL。结果表明,在此条件下,8种组分得以完全分离,并呈良好线性关系,加标回收率为91%~102.5%,相对标准偏差为0.4%~2.7%。
Abstract:A HPLC (High Performance Liquid Chromatography)method for determination of eight food additives (benzoic acid,sorbic acid,saccharin sodium,acesulfame potassium,dehydroacetic acid,caffeine,aspartame,natamycin)in drink was developed.After sample pretreatment,adding zinc acetate and potassium ferrocyanide,separated by C18chromatographic column,using gradient elution of methanol and ammonium acetate(0.02 mol/L),with the flow rate of 1.0 mL/min.The determination wavelength was 210 nm and 305 nm,sample size 10 μL.Under these conditions,the 8 components can be separated completely and show good linear relationship.The standard recovery rate was in the range of 91%-102.5%and the relative standard deviation was 0.4%-2.7%.
keywords: HPLC food additives drink
文章编号:201724027 中图分类号: 文献标志码:
基金项目:陕西省食品药品快速检测公共服务平台建设(2014FWPT-01)
Author Name | Affiliation |
WEI Xing-hua,LI Rong,DONG Man-man,AI Yun,ZHANG Ya-feng,GAO An-cheng | Xi'an Institute for Food and Drug Control,Xi'an 710054,Shaanxi,China |
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