Copper(II) sensor based on a cephaloridine antibiotic PVC matrix

被引：10

作者：

Saleh, MB ^{[1
]}

机构：

[1] Minia Univ, Fac Sci, Dept Chem, Minia, Egypt

来源：

ANALYTICAL LETTERS | 2000年 / 33卷 / 08期

关键词：

ion-selective electrode; cephaloridine antibiotic; copper (II); membrane sensor; PVC; KTCIPB;

D O I：

10.1080/00032710008543139

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A poly (vinyl chloride) (PVC) based membrane of cephaloridine as a novel ionophore exhibits good potentiometric response for Cu2+ over a wide concentration range (10(-5)-10(-1) M) with a slope pf 28.5 mV per decade. The detection limit is 3.5 x 10(-6) M. The response time of the sensor is < 60 s. The electrode has been used for a period of one month and exhibits good selectivity towards Cu2+, comparison to alkali, alkaline earth, transition and heavy metal ions, with no interference caused by Pb2+, Cd2+ and Fe2+ which are known to interfere with many other copper electrodes. The electrode can be used in the pH range from 4.0 to 6.5 and it can also be used in partially non-aqueous medium having up to 10% (v/v) non aqueous content and in the presence of cationic surfactants at concentrations less than 10(-3) M.

引用

页码：1501 / 1512

页数：12

共 29 条

[11] AN ANION ADSORBENT OF THE ANTI-HOFMEISTER TYPE BASED ON COBALT(III)-LOADED CHELATING RESINS CONTAINING 1,4,8,11-TETRAAZACYCLOTETRADECANE-5,7-DIONE [J].