Simultaneous Determination of 11 Heavy Metals Elements in Grain and Vegetables by Inductively Coupled Plasma Mass Spectrometry with Microwave Digestion
Simultaneous Determination of 11 Heavy Metals Elements in Grain and Vegetables by Inductively Coupled Plasma Mass Spectrometry with Microwave Digestion[J]. 2017,36(12):1522-1525.
Simultaneous Determination of 11 Heavy Metals Elements in Grain and Vegetables by Inductively Coupled Plasma Mass Spectrometry with Microwave Digestion[J]. 2017,36(12):1522-1525.DOI:
In this paper,a method was established for the analysis of 11 heavy metal elements(Cu,Mn,Cr,Pb,Cd,Ni,Sb,Hg,Co,Ag,As) in grain and vegetables using inductively coupled plasma mass spectrometry(ICP-MS) with microwave digestion.The instrumental parameters and microwave digestion conditions were optimized.Samples were digested completely using HNO3-HF-H2O2 and HNO3-H2O2.And the results showed that the linear correlation cofficients of eleven elements(r) were not less than 0.999 5,the limits of detection were in the range of 0.001-10.00 μg/L and the relative standard deviations(RSD,n=5) were not more than 5.0%.This method has the advantages of rapidness,simplicity,high sensitivity,good stability and accuracy.
关键词
微波消解电感耦合等离子体质谱重金属元素粮食和蔬菜
Keywords
microwave digestioninductively coupled plasma mass spectrometryheavy metals elementsgrain and vegetable