Membranes for optical pH sensors
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Yordan Kostov; Stoyan Tzonkov; Ljubov Yotova; Milka Krysteva
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Article
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1993
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Elsevier Science
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English
β 424 KB
A method for producing membranes for optical pH sensors is described. The pH indicators (Neutral Red and Congo Red) are covalently bonded to a transparent acetylcellulose film. The membranes have good durability (> 9 months) and a short response time (ca. 30 s). The method is easy to perform and use