用于测定聚乙烯吡咯烷酮的电位型膜传感器。
Potentiometric membrane sensors for polyvinylpyrrolidone determination.
作者信息
Chmilenko F A, Korobova I V, Gurtovaya O V, Chmilenko T S
机构信息
Dnepropetrovsk National University, av.Gagarina 72, Dnepropetrovsk 49050, Ukraine.
出版信息
Talanta. 2009 Jun 15;78(4-5):1259-65. doi: 10.1016/j.talanta.2009.01.049. Epub 2009 Feb 4.
Potentiometric sensors were developed for determining the concentration of the physiologically active polymer polyvinylpyrrolidone (PVP) with the use of its adduct with triphenylmethane and azodyes as electrode-active substances in plasticized membranes. The influences of electrolyte and pH of standard solutions on the electrode characteristics were determined. Polyvinylpyrrolidone determination in aqueous solutions of drug compounds, biological fluids and sewage was offered. The electrode selectivity factors were defined by fixed preventing ion method. The determined value of the selectivity factors varies in the n x 10(-1) interval.
开发了电位传感器，用于通过使用其与三苯甲烷和偶氮染料的加合物作为增塑膜中的电极活性物质来测定生理活性聚合物聚乙烯吡咯烷酮（PVP）的浓度。确定了标准溶液的电解质和pH对电极特性的影响。提出了在药物化合物、生物流体和污水的水溶液中测定聚乙烯吡咯烷酮的方法。电极选择性因子通过固定防止离子法确定。选择性因子的测定值在nx10（-1）区间内变化。
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