Optical Chemosensor for the Detection of Cyanide in Water Based On Ethyl(hydroxyethyl)cellulose Functionalized with Brooker鈥檚 Merocyanine

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• 作者：Leandro G. Nandi ; Celso R. Nicoleti ; Ismael C. Bellettini ; Vanderlei G. Machado
• 刊名：Analytical Chemistry
• 出版年：2014
• 出版时间：May 20, 2014
• 年：2014
• 卷：86
• 期：10
• 页码：4653-4656
• 全文大小：276K
• 年卷期：v.86,no.10(May 20, 2014)
• ISSN：1520-6882

文摘

Ethyl(hydroxyethyl)cellulose was functionalized with Brooker鈥檚 merocyanine. The modified polymer was easily transformed in a film, which could be used as a highly selective chromogenic and fluorogenic chemosensor for the detection of cyanide in water, with detection limits of 1.9 脳 10^鈥? and 1.0 脳 10^鈥? mol L^鈥?. The film was successfully applied to the detection of cyanide in cassava (Manihot esculenta Crantz) roots, which are a well-known source of endogenous biological cyanide.