检验医学 ›› 2015, Vol. 30 ›› Issue (12): 1229-1233.DOI: 10.3969/j.issn.1673-8640.2015.12.016

• 技术研究与评价·论著 • 上一篇    下一篇

电感耦合等离子体质谱检测人全血中的汞

刘军霞, 周昕, 颜崇淮   

  1. 上海交通大学医学院附属新华医院环境试验室,上海 200092
  • 收稿日期:2015-02-25 出版日期:2015-12-20 发布日期:2016-01-04
  • 作者简介:null

    作者简介:刘军霞,女,1986年生,学士,技师,主要从事质谱元素分析工作。

    通讯作者:颜崇淮,联系电话:021-25078857。

  • 基金资助:
    环境保护部环保公益性项目(201309048);科技部973课题(2012CB525001)

Determination of mercury in whole blood by inductively coupled plasma-mass spectrometry

LIU Junxia, ZHOU Xin, YAN Chonghuai.   

  1. Department of Environmental Health, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200092, China
  • Received:2015-02-25 Online:2015-12-20 Published:2016-01-04

摘要:

目的 研究电感耦合等离子体质谱法(ICP-MS)检测全血中汞的可行性。方法 采用盐酸作为样本基质,用微波消解仪对全血进行消解,然后用ICP-MS检测全血汞,验证ICP-MS的检测下限、功能灵敏度、分析测量范围、回收率、准确度和精密度。结果 ICP-MS的检出限为4.525×10-2 ng/mL,功能灵敏度为1.495 ng/mL,分析测量范围为0.18~13.83 ng/mL,回收率为92%~103%。低值[(20±5)ng/mL]和高值[(50±8)ng/mL]质控品20 d检测均值分别为22.22和51.39 ng/mL,批间精密度分别为6%和5%;1 d内检测临床随机混合全血、低值和高值全血质控品各20份,批内精密度分别为4.8%、4.8%、4.4%。结论 ICP-MS检测全血汞可以满足临床要求。

关键词: 电感耦合等离子体质谱, 汞, 全血

Abstract:

Objective To study the feasibility of inductively coupled plasma-mass spectrometry (ICP-MS) for whole blood mercury determination.Methods Using hydrochloric acid as sample matrix, samples were digested with microwave digestion instrument, and ICP-MS was used to determine mercury in whole blood. The lowest detection limit,functional sensitivity, range, recovery, accuracy and precision of ICP-MS were evaluated. Results The detection limit of this method was 4.525×10-2 ng/mL, the functional sensitivity was 1.495 ng/mL, the analytical measurement range was 0.18-13.83 ng/mL, and the recovery rate was 92%-103%. The average values of low-level [(20±5) ng/mL ]and high-level [(50± 8)ng/mL] quality control materials for 20 d were 22.22 ng/mL and 51.39 ng/mL, and between-run precisions were 6% and 5%. Clinical random mixed whole blood, low and high whole blood quality control materials for 20 parts each were detected within 1 d, and the within-run precisions were 4.8%, 4.8% and 4.4%. Conclusions ICP-MS for the determination of whole blood mercury meets the clinical requirements.

Key words: Inductively coupled plasma-mass spectrometry, Mercury, Whole blood

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