Determination of rare earth elements in human hair and wheat flour reference materials by inductively coupled plasma mass spectrometry with dry ashing and microwave digestion
Determination of rare earth elements in human hair and wheat flour reference materials by inductively coupled plasma mass spectrometry with dry ashing and microwave digestion
复制标题
DOI：
10.1016/s0584-8547(98)00159-1
复制
发表时间：
1998-09
期刊：
影响因子：
--
通讯作者：
Yin Ming;L. Bing
中科院分区：
文献类型：
--
作者：
Yin Ming;L. Bing
建立了电感耦合等离子体质谱法（ICP-MS）测定人发（GBW 09101，SRM，Republic of China）和小麦粉（GBW 08503，SRM，Republic of China）中低于ngg-1水平的所有稀土元素的方法。并将干法灰化和微波炉消解法与传统的酸溶法进行了比较。通过分析加标样品和两种蔬菜（GBW 07603和GBW 07605，SRM，中华民国），检查分析方法的有效性。结果令人满意。14种稀土元素在溶液中的检出限为0.0039 ~ 0.0003ngcm-3，在固体样品中的定量限为0.16 ~ 0.01ngg-1。大多数稀土元素的精密度RSD小于10%。
A method was developed for the determination of all rare earth elements (REEs) at sub ngg−1levels in human hair (GBW 09101, SRM, Republic of China) and wheat flour (GBW 08503, SRM, Republic of China) by Inductively coupled plasma mass spectrometry (ICP-MS). The values obtained by dry ashing and microwave oven digestion procedures were compared with those obtained by traditional open vessel acid digestion method. The validity of the analytical procedure was examined by analyzing spiked samples and two vegetables (GBW 07603 and GBW 07605, SRMs, Republic of China). The results are satisfactory. The detection limits for 14 REEs ranged from 0.0039 to 0.0003ngcm−3in solution and the quantification limits ranged from 0.16 to 0.01ngg−1in solid sample. The precision for most REEs were less than 10% RSD.