摘要
研究了用电感耦合等离子体质谱法（ICP-MS）对涉水材料浸泡水中的11种元素Ag，As，Ba，CA，Cu，Sb，Sn，Mn，Ni，Pb和Hg进行同时测定的方法。优化了ICP—MS的工作参数：RF功率为1350W、冷却气流量为13L·min^-1、辅助气流量为0．70L·min^-1、载气流量为0．8L·min^-1、雾化气流量为1．02L·min^-1、样品提升速率为1．48mL·min^-1。11种元素的检出限在0．003～0．170μg·L^-1之间，相对标准偏差（RSD）（n=6）均小于7％，回收率均在92．4％～108．2％之间。该方法用于涉水材料浸泡水中元素的测定，结果令人满意。
Water-touched material include water distribution equipment, protecting materials, and water treatment material. The security of the material plays an important role in everyone＇ s daily life. So it＇ s necessary to determing metal elements in the material. A method for the determination of eleven elements, including Ag, As, Ba, Cd, Cu, Sb, Sn, Mn, Ni, Pb and Hg, in the water-touched material by inductively coupled plasma-mass spectrum（ICP-MS） is described. The plasma parameters were optimized as follows： The RF input power was 1 350 W; flow rate of cooling gas was 13L·min^-1 ; flow rate of assistant gas was 0. 70L·min^-1 ; flow rate of carrying gas was 0. 8 L·min^-1 ; flow rate of atomization gas was 1.02 L·min^-1 ; rate of sampiing was 1.48 mL·min^-1. The detection limits of these eleven elements were 0. 003-0. 170 μg·L^-1. The relative standard deviations（n= 6） were 0. 6%-6. 3%. The correlation coefficients were 0. 999 0-0. 999 6. The recoveries of the method were 92. 4%-108. 2%. This method is sensitive, accurate and simple compared with other methods, and has the advantage of wide linear range. The results were satisfactory.
出处
《光谱学与光谱分析》
SCIE
EI
CAS
CSCD
北大核心
2006年第3期548-550,共3页
Spectroscopy and Spectral Analysis
作者简介
吕琳琳，女，1980年生，东北大学理学院分析化学专业硕士研究生。
通讯联系人。
