葡萄酒中的甜蜜素和二氧化硫的固相萃取离子色谱测定法  

SPE-IC Determination of sodium cyclamate and sulfur dioxide in wine

作　　者：解彦平[1] 王淑惠[1] 何燕[1] 

机构地区：[1]石家庄市疾病预防控制中心,河北石家庄050019

出　　处：《应用化工》2014年第6期1140-1142,1146,共4页Applied Chemical Industry

摘　　要：准确量取一定量的葡萄酒,按一定比例稀释后,逐滴通过SPE预处理柱,分离去除部分蛋白质和色素等疏水性有机物质,进样后使用KOH作为淋洗液,用离子色谱法测定葡萄酒中甜蜜素和二氧化硫。结果表明,甜蜜素和二氧化硫呈现出较好的峰形且与其他离子能较好的分离,RSD均小于5%,回收率在91%～99%。Accurately measured a certain amount of wine,the diluted sample was pretreated by passing through filter membrane and DIONEX On GuardⅡ P ﹠ RP chromatographic column,prior to sample detection for the partly removal of the organic material（ protein /pigment）. After injection with KOH as eluent,ion chromatography determination of sodium cyclamate and sulfur dioxide in wine. Results showed a good peak shape and good separation from other ions in solution. RSD was less than 5%,the spiked recoveries ranged from 91% ～ 99%.

关 键 词：葡萄酒 甜蜜素 二氧化硫 离子色谱法 固相萃取 

分 类 号：O657.7[理学—分析化学]