离子色谱法测定牙膏中的甘油磷酸根含量  

DETERMINATION OF CALCIUM GLYCEROPHOSPHATE USING ION CHROMATOGRAPHY

作　　者：施青红 陈永欣[2] 叶明立[2] 朱岩[2] 

机构地区：[1]浙江工商大学食品生物与环境工程学院,杭州310035 [2]浙江大学西溪校区化学系,杭州310028

出　　处：《离子交换与吸附》2005年第2期189-192,共4页Ion Exchange and Adsorption

基　　金：国家自然科学基金(20375025);浙江省自然科学基金(Z404105);教育部基金;浙江省留学回国人员科研启动基金;浙江省留学回国人员分析测试基金资助.

摘　　要：采用离子色谱法测定牙膏中的甘油磷酸钙含量.该方法2mmol/L KOH为淋洗液,流速1ml/min,可以有效避免基体复杂,干扰性大的缺点.样品的加标回收率为95.4%～99%,最低检测限0.2mg/g.本方法快速、准确、灵敏,重现性好,选择性好,适用于牙膏等复杂基体中甘油磷酸钙的快速测定.A new method for simultaneous determination of Calcium Glycerophosphate by using eluent generator ion chromatography has been described. The disadvantage of matrix and big interference in toothpaste can be avoided. Detection limit of glycerophosphate was 0.2 mg/g. recoveries were 95.4%~99%. With this method, which can be applied in samples with matrix, good linear relationship, sensitivity and reproducibility were obtained.

关 键 词：离子色谱 牙膏 甘油磷酸钙 

分 类 号：O657.7[理学—分析化学]