Study of pH Sensitive Membrane Based on Ion Pairs Technique

提出一种新型pH吸收传感膜。指示剂溴酚蓝与季铵盐阳离子以离子对的形式结合,均匀分布于增塑的PVC膜中。该传感膜测定pH的范围为4.0～6.0。对传感膜的制备方法及响应时间、可逆性、重现性等进行了研究。并应用于实际样品的测定,获得了比较好的结果。A new pH sensitive membrane based on ion pairs technique was developed. Ion pairs indicator, which was formed by bromo-phenol blue reacting with quaternary ammonium cetyl trimethyl ammonium (CTA) bromide, was homogeneously immobilized on plas-ticized PVC membrane. The sensitive membrane covers the pH range between 4.0 and 6.0. Preparation, response time, reversibility and reproducibility of the sensitive membrane were investigated. The sensitive membrane was used to determine the effluents in the mixture pool of antibiotic factory.教育部《高等学校骨干教师资助计划》项目;; 福建省自然科学基金(D9910009);; 福建省科技三项资助项目(K99037);; 福州大学科技发展基

Study of pH sensitive membrane based on ion pairs technique

A new pH sensitive membrane based on ion pairs technique was developed. Ion pairs indicator, which was formed by bromophenol blue reacting with quaternary ammonium cetyl trimethyl ammonium (CTA) bromide, was homogeneously immobilized on plasticized PVC membrane. The sensitive membrane covers the pH range between 4.0 and 6.0. Preparation, response time, reversibility and reproducibility of the sensitive membrane were investigated. The sensitive membrane was used to determine the effluents in the mixture pool of antibiotic factory