STUDY ON THE METAL AFFINITY PARTITION OF SUPEROXIDE DISTMUTASE IN PEG 4000/Na_2SO_4 AQUEOUS TWO PHASE SYSTEM

Tan Tianwei; Wang Bingwu; Liu Dehua(Department of Chemical Engineering

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STUDY ON THE METAL AFFINITY PARTITION OF SUPEROXIDE DISTMUTASE IN PEG 4000/Na_2SO_4 AQUEOUS TWO PHASE SYSTEM

更新时间：2025-12-16

- STUDY ON THE METAL AFFINITY PARTITION OF SUPEROXIDE DISTMUTASE IN PEG 4000/Na_2SO_4 AQUEOUS TWO PHASE SYSTEM
- CIESC Journal Issue 5, (1996)
- 作者机构：
  
  北京化工大学化工系!北京100029,北京化工大学化工系!北京100029,中国科学院化工冶金研究所,北京,100080
- 作者简介：
- 基金信息：
- DOI：
  CLC： Q028
- Online First：25 October 1996，
  
  Published：25 October 1996
- 稿件说明：
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Tan Tianwei, Wang Bingwu, Liu Dehua(Department of Chemical Engineering. STUDY ON THE METAL AFFINITY PARTITION OF SUPEROXIDE DISTMUTASE IN PEG 4000/Na_2SO_4 AQUEOUS TWO PHASE SYSTEM[J]. CIESC Journal, 1996, (5).
DOI：

Tan Tianwei, Wang Bingwu, Liu Dehua(Department of Chemical Engineering. STUDY ON THE METAL AFFINITY PARTITION OF SUPEROXIDE DISTMUTASE IN PEG 4000/Na_2SO_4 AQUEOUS TWO PHASE SYSTEM[J]. CIESC Journal, 1996, (5). DOI：

摘要

研究了Cu_(2+)-IDA-PEG20000的合成方法及超氧化物岐化酶（SOD）在含有金属配基（Cu_(2+)-IDA-PEG20000）的PEG4000／Na_2SO_4双水相体系中分配系数模型．通过降低反应温度和分批加入SOCL_2可使PEG20000转化为PEG20000-Cl_2的转化率提高到98％．提出的金属亲和分配系数模型可用于关联和预测SOD在含有CU_(2+)-IDA-PEG20000的PEG4000／Na_2SO_4体系中的分配特性，实验值和预测值之间的相对误差＜10％．

Abstract

The preparation of Cu~(2+)-IDA（iminodiacetic acid）—PEG 20000（polyethylene gly col）was studied.By reacting at 65℃ and adding SOC1_2 by feed batch

the coupling yield of PEG 20000 to PEG 20000—Cl_2 reached 98％.A new metal affinity partition model was developed

by which the correction and prediction for the experimental data were made successfully The relative deviations between predicted results and xperimental data were less than 10％.

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