pH-Sensitive Polymer Matrix with Immobilized Indicator Ion Pairs

高等学校化学研究 ›› 2002, Vol. 18 ›› Issue (1): 8-11.

pH-Sensitive Polymer Matrix with Immobilized Indicator Ion Pairs

GUO Liang-qia¹, NIE Qiu-yan¹, XIE Zeng-hong¹, CHEN Yi-ting¹, CHEN Guo-nan¹, CHEN Xi², WANG Xiao-ru²

1. Department of Chemistry, Fuzhou University, Fuzhou 350002, P. R. China;
2. Department of Chemistry, Xiamen University, Xiamen 361005, P. R. China

收稿日期:2000-12-14 出版日期:2002-01-24 发布日期:2011-08-04
基金资助:
Supported by Foundation for University Key Teacher by the MOE, the Natural Science Foundation of Fujian Province of China(No.D9910009), Three Projects of Science and Technology of Fujian Province(No.K99037).

pH-Sensitive Polymer Matrix with Immobilized Indicator Ion Pairs

GUO Liang-qia¹, NIE Qiu-yan¹, XIE Zeng-hong¹, CHEN Yi-ting¹, CHEN Guo-nan¹, CHEN Xi², WANG Xiao-ru²

1. Department of Chemistry, Fuzhou University, Fuzhou 350002, P. R. China;
2. Department of Chemistry, Xiamen University, Xiamen 361005, P. R. China

Received:2000-12-14 Online:2002-01-24 Published:2011-08-04
Supported by:
Supported by Foundation for University Key Teacher by the MOE, the Natural Science Foundation of Fujian Province of China(No.D9910009), Three Projects of Science and Technology of Fujian Province(No.K99037).

摘要/Abstract

摘要： A new sensor material for monitoring pH in aqueous solutions is described. It is based on lipophilic ion pairs consisting of an anionic pH indicator Bromocresol Green and a quaternary ammonium cation cetyltri-methylammonium. The ion pairs are homogeneously distributed inside the plasticized PVC membrane. The change of pH in an aqueous solution causes the change of optical property of the indicator immobilized on the plasticized PVC membrane. The plasticized PVC membrane is sensitive in a pH range from 4.0 to 6.0.

关键词: Bromocresol green, pH, PVC membrane

Abstract: A new sensor material for monitoring pH in aqueous solutions is described. It is based on lipophilic ion pairs consisting of an anionic pH indicator Bromocresol Green and a quaternary ammonium cation cetyltri-methylammonium. The ion pairs are homogeneously distributed inside the plasticized PVC membrane. The change of pH in an aqueous solution causes the change of optical property of the indicator immobilized on the plasticized PVC membrane. The plasticized PVC membrane is sensitive in a pH range from 4.0 to 6.0.

Key words: Bromocresol green, pH, PVC membrane

GUO Liang-qia, NIE Qiu-yan, XIE Zeng-hong, CHEN Yi-ting, CHEN Guo-nan, CHEN Xi, WANG Xiao-ru. pH-Sensitive Polymer Matrix with Immobilized Indicator Ion Pairs[J]. 高等学校化学研究, 2002, 18(1): 8-11.

GUO Liang-qia, NIE Qiu-yan, XIE Zeng-hong, CHEN Yi-ting, CHEN Guo-nan, CHEN Xi, WANG Xiao-ru. pH-Sensitive Polymer Matrix with Immobilized Indicator Ion Pairs[J]. Chemical Research in Chinese Universities, 2002, 18(1): 8-11.

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pH-Sensitive Polymer Matrix with Immobilized Indicator Ion Pairs

pH-Sensitive Polymer Matrix with Immobilized Indicator Ion Pairs

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