Optical pH Sensor Based on Quinizarin for Alkaline pH Regions
نویسندگان
چکیده مقاله:
The development of an optical pH sensor based on immobilization of quinizarin (1,4-dihydroxyanthraquinone) on a triacetylcellulose membrane was described. The resulting membrane exhibited fast color change from yellow to violet, while changing the pH in alkaline region. The immobilized quinizarin showed a broader dynamic range from (pH 9.4-11.4) with respect to free form (pH 8.8-10.4). The sensor response was fully reversible and fast (
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عنوان ژورنال
دوره 1 شماره 1
صفحات 11- 17
تاریخ انتشار 2008-08-01
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