基于聚电解质-表面活性剂复合物的新型表面活性剂选择性膜电极。
Novel surfactant-selective membrane electrode based on polyelectrolyte-surfactant complex.
作者信息
Zorin Ivan, Scherbinina Tatiana, Fetin Petr, Makarov Ivan, Bilibin Alexander
机构信息
St.-Petersburg State University, Institute of Chemistry, 26 University Avenue, Peterhof, St.-Petrsburg 198504, Russia.
St.-Petersburg State University, Institute of Chemistry, 26 University Avenue, Peterhof, St.-Petrsburg 198504, Russia.
出版信息
Talanta. 2014 Dec;130:177-81. doi: 10.1016/j.talanta.2014.06.061. Epub 2014 Jul 5.
Novel class of active ionophores for surfactant selective electrodes is proposed. PVC membrane doped with polyelectrolyte-surfactant stoichiometric complex is used for ion-selective electrode construction responsive to cetyltrimethyl ammonium bromide and related surfactants. New ionophore is quite stable and completely insoluble in aqueous media in wide range of pH. The electrode displays nearly Nernstian slope in CTAB concentration range 10(-6)-10(-3)M. Polyelectrolyte platform allows to design wide range of different ionophores responsive to cationic organic substances.
提出了用于表面活性剂选择性电极的新型活性离子载体。掺杂有聚电解质 - 表面活性剂化学计量复合物的PVC膜用于构建对十六烷基三甲基溴化铵及相关表面活性剂有响应的离子选择性电极。新型离子载体相当稳定，在很宽的pH范围内完全不溶于水介质。该电极在CTAB浓度范围为10(-6)-10(-3)M时显示出近能斯特斜率。聚电解质平台允许设计对阳离子有机物质有响应的各种不同离子载体。
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