电感耦合等离子体质谱法（ICP-MS）结合微波消解测定人发中24种元素
[Determination of 24 elements in human hair by ICP-MS using microwave digestion].
作者信息
Zhang Dan, Zhuo Xian-Yi
机构信息
Department of Forensic Medicine, Medical College of Soochow University, Suzhou 215123, China.
出版信息
Fa Yi Xue Za Zhi. 2011 Dec;27(6):425-9, 433.
OBJECTIVE
To establish an inductively coupled plasma-mass spectrometry (ICP-MS) method for determination of 24 elements in human hair.
METHODS
The samples were digested with microwave digestion instrument. ICP-MS was applied to determine 24 elements in human hair using indium (115In) as an internal standard. The established method was applied to determine element concentration in normal group (56 samples) and heroin abuse group (10 samples).
RESULTS
The limits of detection ranged from 0.000 3 microg/g to 10.14 microg/g. Measured value of the standard materials were basically consistent with the standard value. The contents of magnesium, gallium and barium in hair of heroin addicts decreased after rehabilitation treatment.
CONCLUSION
The method is sensitive and accurate for determination of 24 elements in human hair.
目的
建立电感耦合等离子体质谱法（ICP-MS）测定人发中24种元素的方法。
方法
采用微波消解仪对样品进行消解。以铟（115In）作为内标，应用ICP-MS测定人发中24种元素。将所建立的方法应用于正常组（56份样品）和海洛因滥用组（10份样品）中元素浓度的测定。
结果
检测限为0.000 3μg/g至10.14μg/g。标准物质的测定值与标准值基本一致。海洛因成瘾者康复治疗后头发中镁、镓和钡的含量降低。
结论
该方法用于测定人发中24种元素灵敏、准确。
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