节点文献
测定水中镍的流动注射化学发光新方法研究
Novel Flow Injection Chemiluminescence Method for the Determination of Nickel in Water Samples
【摘要】 本文研究了蒽绿-H2O2-Ni(Ⅱ)反相流动注射化学发光新体系,发现镍可催化H2O2氧化蒽绿而产生发光。且发光强度有较大幅度的增强,镍量在5.0×10-9~3.0×10-7g/ml范围内,发光强度与镍量成正比,方法检出限为0.11ng/ml,实验了32种离子存在下的影响,绝大部分离子允许量在300倍以上,说明该法有良好的选择性。方法直接应用于水样分析,结果令人满意。
【Abstract】 A reversed flow injection chemiluminescence method for the determination of nickel based on its catalysis to the chemiluminescence system of anthracene green - H2O2- Ni (Ⅱ) has been developed. The detection limit of nickel is 0. 11 ng/ml.and the nickel concentration range of linear response is from 5. 0×10-9 to 3. 0×10-7 g/ml. The proposed procedure has been satisfactorily applied to the determination of nickel in water samples.
【关键词】 反相流动注射;
化学发光;
蒽绿;
镍;
【Key words】 Reversed flow injection; Chemiluminescence; Anthracene green; Nickel.;
【Key words】 Reversed flow injection; Chemiluminescence; Anthracene green; Nickel.;
【基金】 冶金工业部自然科学基金
- 【文献出处】 分析化学 ,Chinese Journal of Analytical Chemistry , 编辑部邮箱 ,1993年09期
- 【被引频次】14
- 【下载频次】47