摘要
尿样经硝酸-过氧化氢（1＋1）混合液微波消解后，对所得试样溶液中的钒、铬、锰、钴、锌、砷、硒和铅等8种痕量元素采用电感耦合等离子体质谱法同时测定。用115In作为在线内标校正基体效应；用氦气／氢气作为碰撞反应气消除40Ar12C＋、40Ar35Cl^＋40Ar40Ar＋、35Cl16O^＋Cl16O1H等多原子离子对52Cr^＋、75As^＋、80Se＋、51V＋产生的光谱干扰。8种元素的检出限（3s）在0．006-0．360μg·L^-1之间。该方法对一种尿液标准物质中微量元素的测定结果与标准值相一致。
The urine sample was treated by microwave assisted digestion with a mixed solution of HNO3- H2O2 （1＋1）, and 8 trace elements in the solution, including Cr, V, Mn, Co, Zn, As, Se and Pb, were determined by ICP-MS. Matrix effect was corrected with 11s In as online internal standard, and the polyatomic ion interferences of 52Cr^＋, 75As^＋, 80Se^＋ and 51V by 40Ar12C^＋ , 40Ar35Cl^＋, 40Ar40Ar^＋ , 35Cl16O＋ , 35Cl16O1H^＋ were eliminated by collision/reaction cell technology with He/H2 as collision reaction gas. Detection limits （3s） of the 8 elements were in the range of 0. 006-0. 360μg·L^-1. The proposed method was used in the analysis of a urine standard reference material, the results obtained was in conformity with standard values.
出处
《理化检验（化学分册）》
CAS
CSCD
北大核心
2009年第5期520-523,共4页
Physical Testing and Chemical Analysis(Part B:Chemical Analysis)
