摘要
用4%醋酸溶液浸泡取自不锈钢食用器皿钢片样品,在室温条件下浸泡24h,将浸泡液按6∶1浓缩.通过优化试验确定实验条件,用电感耦合等离子体发射光谱仪准确测定浸泡液中Cr、Ni、Cd的浓度.实验过程操作简单,多种元素同时测定节约试验时间.精密度试验和回收率试验说明该方法检测结果准确可靠.
The simultaneous determination of extractable Cr?Ni and Cd in stainless steel cutlery for foodstuffs was repested by ICP- AES. Samples sheared from stainless steel cutlery were dipped in 4 % acetic acid solution about 24 h in room temperature condition, then were condensed to 6∶1. Concentrations of Cr?Ni and Cd in the marinated solution were determined simultaneously by ICP- AES in which the operation conditions were determined through optimum test. The process of test was simple and the test time was saved due to the amount of elements were determined at the same time. Precision test and recovery test indicated the results of test by this method is believable.
出处
《分析测试技术与仪器》
CAS
2003年第4期247-250,共4页
Analysis and Testing Technology and Instruments
关键词
电感耦合等离子体原子发射光谱
测定
不锈钢
食用器皿
铬
镍
镉
溶出量
inductively coupled plasma atomic emission spectrometry
stainless steel cutlery for foodstuffs
extractable capacity
