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化学学报
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化学学报 ›› 1995, Vol. 53 ›› Issue (2): 168-172. 上一篇    下一篇

研究论文

流动注射化学发光离子交换法研究Ⅰ.化学发光阴离子交换树脂的研制及应用

庄惠生;张帆;王琼娥   

  1. 福州大学化学系
  • 发布日期:1995-02-15

Investigation on the flow injection chemiluminescence ion exchange method Ⅰ.the preparation and application of chemiluminescent anion exchange resin

ZHUANG HUISHENG;ZHANG FAN;WANG QIONGE   

  • Published:1995-02-15

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本文研制了一种新型的由强碱性阴离子交换树脂(OH形式),转换成N-(β-羧基丙酰基)异鲁米诺(简称CPIL)化学发光形式的阴离子交换树脂.试液中的阴离子将树脂上的发光剂阴离子(CPIL^-)交换出来与H~2O~2-Fe(CN)~6^3^-反应,产生化学发光,化学发光的强度与试液中的阴离子浓度成正比.由此建立的流动注射化学发光离子交换测定技术,应用于CI^-,Br^-,NO^-~2,NO^-~3,SO^2^-~4等阴离子的测定,对不同的阴离子检测限为8.0×10^-^7mol.dm^-^3-1.4×10^-^6mol.dm^-^3,线性范围可达两个数量极(1×10^-^6mol.dm^-^3-1×10^-^4mol.dm^-^3).

关键词: 溴, 硫酸, 氯, 阴离子交换树脂, 硝酸, 流动注射分析, 化学发光, 亚硝酸, 羧基丙酰基异鲁米诺

An anion exchange resin (OH form) is converted to the chemiluminescent anion form with a new reagent N-(b-carboxypropionyl) isoluminol (CPIL). The anion of interest in the analyte solution displaces the reagent CPIL anion when passing through the resin, then reacts with a H2O2-Fe(CN)63- solution to produce luminescence. The intensity of the CL produced is linearly related to the concentration of the anion in the analyte solution A new flow injection chemiluminescence ion exchange technique is established, and can be used to determine Cl-, Br-, NO2-, NO3-, SO42- anions, with detection limits from 8.0 ?10-7 to 1.4 ?10-6 mol/dm-3, and linearity over two orders of magnitude.

Key words: BROMINE, SULFURIC ACID, CHLORINE, ANION-EXCHANGE RESINS, NITRIC ACID, FLOW INJECTION ANALYSIS, CHEMILUMINESSENCE, NITROUS ACID

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