J4

• 化学 • 上一篇    下一篇

人工神经网络-流动注射化学发光法同时测定金和铂

刘名扬, 王红霞, 邹秀晶, 钱维仙, 张海涛, 陈淑桂, 王洪艳   

  1. 吉林大学化学学院, 长春 130026
  • 收稿日期:2004-06-14 修回日期:1900-01-01 出版日期:2005-03-26 发布日期:2005-03-26
  • 通讯作者: 王洪艳

Simultaneous Determination of Au and Pt by Artificial Neural Network Combined with Flow Injection-chemiluminescence

LIU Ming-yang, WANG Hong-xia, ZOU Xiu-jing, QIAN Wei-xian, ZHANG Hai-tao, CHEN Shu-gui, WANG Hong-yan   

  1. Department of Applied Chemistry, College of Chemistry, Jilin University, Changchun 130026, China
  • Received:2004-06-14 Revised:1900-01-01 Online:2005-03-26 Published:2005-03-26
  • Contact: WANG Hong-yan

摘要: 将人工神经网络和流动注射化学发光法相结合, 建立了一种不需要分离、 同时测定痕量金和铂的方法. Luminol-H22作发光剂, 阳离子交换树脂和掩蔽剂EDTA在线消除干扰离子的影响, 用人工神经网络解析Au和Pt混合化学发光动力学曲线. Au和Pt的检出限分别为1.58×10-6 mmol/L和2.00×10-3 mmol/L, 相对标准偏差分别为1.25%和1.59%. 模拟混合样的分析误差小于20%.

关键词: 人工神经网络, 流动注射, 化学发光, 金,

Abstract: An on-line and sensitive artificial neural network (ANN) analysis combined with flow injection-chemiluminescence (FI-CL) was dev eloped to determine the trace amounts of Au and Pt simultaneously, without the boring process of separating them. Luminol-H2 was used as the luminescent reagent. After separation of the most metal ions by cationic exchange resin on-line, EDTA was used as the mask to dispel the effect of residual interference elements. The positions of the catalyzing peak of the luminescence kinetic curve of Au and Pt are different, which is the basis of the simultaneous determination by ANN. The detection limits of Au and Pt were 1.5810-6  mmol/L and 2.00×10 -3  mmol/L, respectively, and the relative standard deviation (RSD) were 1.25% and 1.59%. The relative error (RE) of detecting mixed samples is less than 20%.

Key words: artificial neural network, flow injection, chemiluminescence, gold, platinum

中图分类号: 

  • O651