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 (
Rouhani, S., & Salimi, S. (2008). Optical pH Sensor Based on Quinizarin for Alkaline pH Regions. Progress in Color, Colorants and Coatings, 1(1), 11-17. doi: 10.30509/pccc.2008.75703
MLA
Sh. Rouhani; S. Salimi. "Optical pH Sensor Based on Quinizarin for Alkaline pH Regions", Progress in Color, Colorants and Coatings, 1, 1, 2008, 11-17. doi: 10.30509/pccc.2008.75703
HARVARD
Rouhani, S., Salimi, S. (2008). 'Optical pH Sensor Based on Quinizarin for Alkaline pH Regions', Progress in Color, Colorants and Coatings, 1(1), pp. 11-17. doi: 10.30509/pccc.2008.75703
VANCOUVER
Rouhani, S., Salimi, S. Optical pH Sensor Based on Quinizarin for Alkaline pH Regions. Progress in Color, Colorants and Coatings, 2008; 1(1): 11-17. doi: 10.30509/pccc.2008.75703
)
