摘要
目的：建立电感耦合等离子体质谱法（ICP-MS）直接测定软饮料中的铬、铜、锌、砷、镉、锑的方法。方法：软饮料经适当稀释后直接进样测定,外标法绘制工作曲线,在线内标校准基体效应及信号漂移。结果：相对标准偏差（RSD）〈5.0%,加标回收率90.0%-110.0%,用该方法对FAPAS能力验证软饮料样品进行了测定,结果令人满意。结论：样品前处理方法简单,结果准确、灵敏、快速,精密度好。
Objective：To develop a method for the determination of chromium, copper, zinc, arsenic, cadmium, antimony in soft drink by using ICP - MS. Methods：The diluted sample was introduced into ICP - MS. External calibration was applied for making calibration curve and online internal calibration for eliminating matrix effect and signal drift, respectively. Results：The relative standard（RSD）was 〈 5. 0% and the recoveries were between 90.0% - 110. 0%. The approach was applied in the FAPAS test for soft drink, the analytical valued matched well the assigned value. Conclusions：The method is simple, sensitive and accurate.
出处
《中国卫生检验杂志》
CAS
2009年第5期1036-1038,共3页
Chinese Journal of Health Laboratory Technology
作者简介
王柯（1971-），男，硕士，副主任药师，主要从事食品和中药理化分析研究。
