职业与健康 ›› 2026, Vol. 42 ›› Issue (18): 2496-2501.

• 论著——实验·监测与检验 • 上一篇    下一篇

血液中20种金属元素的微波消解-电感耦合等离子体质谱测定法

侯新彤1, 杨立新2, 李研东3, 李增敏2, 郑卉2(), 石红梅1()   

  1. 1 河北医科大学河北 石家庄 050017
    2 河北省疾病预防控制中心河北 石家庄 050021
    3 河北省兽药饲料工作总站河北 石家庄 050035
  • 收稿日期:2025-12-18 修回日期:2026-04-17 出版日期:2026-09-15 发布日期:2026-08-28
  • 通信作者: 郑卉,石红梅
  • 作者简介:郑卉,E-mail:15003119065@139.com
    石红梅,E-mail:Shihm@hebmu.edu.cn
    侯新彤,女,在读硕士研究生,研究方向为公共卫生。
  • 基金资助:
    国家自然科学基金项目(82373626);河北省医学科学研究课题计划(20250991)

Determination of 20 metal elements in blood by microwave digestion-inductively coupled plasma mass spectrometry

HOU Xintong1, YANG Lixin2, LI Yandong3, LI Zengmin2, ZHENG Hui2(), SHI Hongmei1()   

  1. 1 Hebei Medical UniversityShijiazhuangHebei 050017, China
    2 Hebei Province Center for Disease Prevention and ControlShijiazhuangHebei 050021, China
    3 Hebei Provincial Veterinary Drug and Feed Administration StationShijiazhuangHebei 050035, China
  • Received:2025-12-18 Revised:2026-04-17 Online:2026-09-15 Published:2026-08-28
  • Contact: ZHENG Hui,SHI Hongmei

摘要:

目的 建立同时测定血液中20种金属元素的电感耦合等离子体质谱法,检测锂电池拆解行业职业人群金属暴露水平。方法 采用微波消解作为样品前处理,在硝酸体系中消解,赶酸后稀释定容,在电感耦合等离子体质谱法(inductively coupled plasma-mass spectrometry,ICP-MS)的标准模式(standard mode,STD)和动能歧视模式(kinetic discrimination mode,KED)下测定血液中锂(Li),锰(Mn)、钴(Co)、镍(Ni)、银(Ag)、砷(As)、镉(Cd)、铬(Cr)、铅(Pb)、锡(Sn)、锶(Sr)、锑(Sb)、钒(V)、钡(Ba)、钛(Ti)、铍(Be)、钼(Mo)、铊(Tl)、铝(Al)和铜(Cu)元素的浓度,用内标校正法降低基质效应。结果 20种金属元素线性方程的相关系数(R2)均>0.996,检出限为0.005~0.429 μg/L,定量限为0.015~1.431 μg/L,回收率为85.36%~109.14%,相对标准偏差(relative standard deviation,RSD)≤12.17%。结论 所建立的方法准确、快速,准确度和精密度良好,适用于血液中多种金属元素的同时检测。

关键词: 微波消解, 电感耦合等离子体质谱法, 血液, 金属元素

Abstract:

Objective To establish an inductively coupled plasma mass spectrometry(ICP-MS) method for the simultaneous determination of 20 metal elements in blood,and to detect the metal exposure level of occupational population in the lithium battery dismantling industry. Methods Microwave digestion was employed as sample pretreatment,with digestion in a nitric acid system,acid scavenging,and dilution to a constant volume. The concentrations of lithium(Li),manganese(Mn),cobalt(Co),nickel(Ni),silver(Ag),arsenic(As),cadmium(Cd),chromium(Cr),lead(Pb),tin(Sn),strontium(Sr),antimony(Sb),vanadium(V),barium(Ba),titanium(Ti),beryllium(Be),molybdenum(Mo),thallium(Tl),aluminum(Al),and copper(Cu) in blood were determined under the standard mode(STD) and kinetic discrimination mode(KED) of ICP-MS. The matrix effect was reduced by internal standard calibration. Results The correlation coefficients(R2) of the linear equations for all 20 metal elements were all greater than 0.996. The detection limits ranged from 0.005 to 0.429 μg/L,and the quantification limits ranged from 0.015 to 1.431 μg/L. The recovery ranged from 85.36% to 109.14%,and the relative standard deviation(RSD) was ≤12.17%. Conclusion The established method is rapid,with good precision and accuracy,and suitable for the simultaneous determination of multiple metal elements in blood.

Key words: Microwave digestion, Inductively coupled plasma mass spectrometry, Blood, Metal elements

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