微波消解-电感耦合等离子体质谱法测定蔬菜中5种重金属元素含量

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关键词：微波消解；电感耦合等离子体质谱法；蔬菜；重金属；含量测定中图分类号：TS207.3 文献标志码：A 文章编号：1674-0270（2026）01-0069-04DOI: 10.16043/j.cnki.cfs.2026.01.018

Determination of Five Heavy Metal Elements in Vegetables by Microwave Digestion-Inductively Coupled Plasma Mass Spectrometry

SHANG Zhengji, WU Wenyu (Yingjiang County Center for Disease Control and Prevention,Mangshi 6793OO, China)

Abstract:Arapidanalytical method was developed forthe simultaneous determinationoffive heavy metal elements (Pb, Cd,Hg,Asand Cr)invegetables.Vegetablesamples were pretreatedby microwave digestion,andtheanalysis was performed using inductively coupled plasma mass spectrometry (ICP-MS). The results show that allfive heavy metal elements are good within the set concentration range, with correlation coeficients all ⩾0.9995 .The limits of detection are 0.005～0.08μg/g ,the limits of quantification are 0.015~0.24 μg/g , the relative standard deviations are 1.2% 4.8% and the spiked recovery rates are 86.7%～106.7% . A total of six common vegetables, such as leafy vegetables, solanaceous vegetables androot vegetables,are selectedforreal measurement.Insomesamples,thereare trace amounts of leadandcadmium exceeding thestandardlimits.Thismethodisrapid,efficient,accurateandreliable,whichis suitable for batch detection of multiple heavy metal elements in vegetables.

Key Words: microwave digestion; inductivelycoupled plasma mass spectrometry; vegetables; havy metals; contentdeterination

蔬菜作为日常膳食中不可或缺的核心食材，不仅为人体提供维生素、矿物质、膳食纤维等必需营养成分，其摄入量与饮食结构的合理性还直接关联公众健康水平]。（剩余5880字）