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Optical pH sensor based on chemical modification of polymer film

Authors: Ali A Ensafi, A Kazemzadeh
Publication date: 1999/11/30
Journal name: Microchemical journal
Volume: 63
Pages: 381-388
Publisher: Elsevier
 
A new low-cost pH sensor developed by immobilizing a direct indicator dye to porous and
transparent acetylcellulose film. This sensor was fabricated by binding α-Naphthyl Red and
Alizarine Yellow GG to a cellulose acetate film that had previously been subjected to an
exhaustive base hydrolysis. The membranes have good durability (> 12 months) and a short
response time (< 5 s). The method is easy to perform and uses acetylcellulose as a carrier.
The reagents used for the activity of the cellulose support are inexpensive, nontoxic, and ...

 

Journal Papers
Month/Season: 
November
Year: 
1999

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Optical pH sensor based on chemical modification of polymer film | Prof. Ali A. Ensafi

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تحت نظارت وف ایرانی