Quantitative Determination in Aqueous Solutions of Physiologically Active Copolymers of N-Vinylpyrrolidone and 2-Methyl-5-Vinylpyridine

被引：0

作者：

S. A. Kedik

A. V. Panov

I. V. Sakaeva

Yu. V. Kochkina (Cherta)

D. V. Eremin

V. V. Suslov

M. A. Zaitsev

机构：

[1] Institute of Pharmaceutical Technologies,

[2] State Scientific Center for Drug Expertise and Control,undefined

[3] Ministry of the Russian Federation for Public Health,undefined

[4] Space Research Institute,undefined

[5] Russian Academy of Sciences,undefined

来源：

Pharmaceutical Chemistry Journal | 2014年 / 47卷

关键词：

quantitative determination; -vinylpyrrolidone and 2-methyl-5-vinylpyridine copolymer; aqueous solutions;

D O I：

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学科分类号：

摘要：

Techniques for quantitative determination of N-vinylpyrrolidone and 2-methyl-5-vinylpyridine copolymers in aqueous solutions were developed. The spectrophotometric technique allowed the copolymer concentration in dilute solutions (0.8 – 1.2 mg/mL) to be determined even in the presence of the interfering additive merthiolate. The refractometric technique was simpler and allowed the copolymer concentration in concentrated solutions (> 1 mass%) to be determined.

引用

页码：569 / 571

页数：2