分析测试学报2012，Vol.31Issue(2)：164-168,5.DOI:10.3969/j.issn.1004-4957.2012.02.009
甲苯中微量金属元素测定及特征分析
Determination of Trace Metal Elements in Toluene and Their Feature Analysis
摘要
Abstract
An inductively coupled plasma mass spectrometric (ICP - MS) method was established for the determination of trace metal elements, including V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Ag, Cd and Pb in toluene. The toluene were dissolved in ethanol - water - nitric acid system. The organic sampling system and the internal standard element Re were used in this experiment. The experimental conditions, such as RF power, carrier gas, sampling depth, ethanol - water ratio and nitric acid concentration were optimized. The results showed that, under the optimal conditions, the detection limits for the most trace metal elements could reach up to ng /L level. The linear correlation of the method was preferable with correlation coefficient of 0. 998 4-1.000. The relative standard deviation ( n = 3 ) was less than 8. 0% and the relative error was not more than 10% . The toluenes from different factories were analyzed. Results indicated that the concentrations of trace metal elements in the toluenes were obvious different. Therefore, a new identification method for benzenes spilled in ocean was provided by feature analysis of metals in the benzene compounds.关键词
甲苯/微量金属元素/电感耦合等离子体质谱法Key words
toluene/ trace metal elements/ inductively coupled plasma mass spectrometry分类
化学化工引用本文复制引用
李俊飞,李景喜,陈军辉,郑立,韩彬,王志广,李昉..甲苯中微量金属元素测定及特征分析[J].分析测试学报,2012,31(2):164-168,5.基金项目
海洋公益性行业科研专项(201005034-3) （201005034-3）
国家海洋局青年基金资助项目(2011524) （2011524）
