摘要
本文建立了ICP AES(电感耦合等离子体发射光谱仪 )法同时测定生活饮用水中的铅、砷、铜、铁、锌、锰、铬、镉、银、铝、硒的分析方法 ,采用超声波雾化器 ,提高了雾化效率 ,同时提高分析的灵敏度。优化了ICP工作参数 ,研究了酸度对测定的影响 ,并进行了元素分析线的选择、背景扣除方式和共存元素干扰的试验。该法相关性好 (r为 0 9993～ 0 9998) ,线性范围广 ,精密度RSD <9 8% ,准确度好 ,样品加标回收率为 90 0 %～ 10 9 7% ,检出限低 ,具有分析速度快 ,多元素同时测定 ,操作简便等优点。应用于实际样品的测定 ,结果满意。
A method for the determination of Pb, As, Cu, Fe, Zn, Mn, Cr, Cd, Ag, Al and Se in drinking water by ICP-AES (Inductively Coupled Plasma-Atomic Emission Spectroscopy) has been developed in this study. The nebulizer rate and sensitivity were improved by using an ultrasonic nebulizer. The plasma parameters, acid concentration, wavelength selection, background reduction and interelement effects were studied for optimization. The correlation coefficient, relative standard deviation and recovery of the method were 0.999 3 - 0.999 8, 2.8% - 9.8% and 90.0% - 109.7% respectively. This method is sensitive, accurate, simple for analysis of Pb, As etc. in drinking water.
出处
《光谱学与光谱分析》
SCIE
EI
CAS
CSCD
北大核心
2003年第4期779-784,共6页
Spectroscopy and Spectral Analysis
基金
广州市天河区科技计划项目 (2 0 0 3 KW 1 )
