OPTICAL PH SENSOR BASED ON QUINIZARIN FOR ALKALINE PH REGIONS

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ROUHANI S.; SALIMI S.

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Journal Paper

Paper Information

Journal: PROGRESS IN COLOR, COLORANTS AND COATINGS Year:2008 | Volume:1 | Issue:1 Page(s): 11-17

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Information Journal Paper

Title

OPTICAL PH SENSOR BASED ON QUINIZARIN FOR ALKALINE PH REGIONS

Author(s)

ROUHANI S. | SALIMI S. | Issue Writer Certificate

Keywords

QUINIZARIN

OPTICAL SENSOR

PH DETERMINATION

MEMBRANE

Abstract

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 (<20 s) under the batch conditions with pH between 7 and 12.5. The sensor showed excellent long term stability (more than three months) and high reproducibility (R.S.D. less than 2%). The Ka values for free and immobilized dye were evaluated and the chemical reactivity of the QUINIZARIN in solution and after immobilization was also described.

Cites

STUDYING THE PHOTOPHYSICAL PROPERTIES OF 4- (2- AMINOETHYLENE) AMINO- NALLYL- 1, 8- NAPHTHALIMIDE AND ITS COPOLYMER WITH METHYLMETHACRYLATE AS FLUORESCENT PH SENSORS

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APA: Copy

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. SID. https://sid.ir/paper/588331/en

Vancouver: Copy

ROUHANI S., SALIMI S.. OPTICAL PH SENSOR BASED ON QUINIZARIN FOR ALKALINE PH REGIONS. PROGRESS IN COLOR, COLORANTS AND COATINGS[Internet]. 2008;1(1):11-17. Available from: https://sid.ir/paper/588331/en

IEEE: Copy

S. ROUHANI, and S. SALIMI, “OPTICAL PH SENSOR BASED ON QUINIZARIN FOR ALKALINE PH REGIONS,” PROGRESS IN COLOR, COLORANTS AND COATINGS, vol. 1, no. 1, pp. 11–17, 2008, [Online]. Available: https://sid.ir/paper/588331/en

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