A QUERCETIN DIHYDRATE AGAROSE MEMBRANE OPTICAL SENSOR FOR SELECTIVE MONITORING OF MOLYBDENUM

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BAZGIR ELHAM; HASHEMI PAYMAN; NAZARI SERENJEH FARIBA

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Seminar Paper

Paper Information

Seminar: SEMINAR OF CHEMISTRY AND ENVIRONMENT
Year:2015 | Issue:7

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Title

A QUERCETIN DIHYDRATE AGAROSE MEMBRANE OPTICAL SENSOR FOR SELECTIVE MONITORING OF MOLYBDENUM

Author(s)

BAZGIR ELHAM | HASHEMI PAYMAN | NAZARI SERENJEH FARIBA | Issue Writer Certificate

Keywords

AGAROSE MEMBRANE

QUERCETIN

OPTICAL SENSOR

MOLYBDENUM

Abstract

A HIGHLY SELECTIVE OPTICAL SENSOR WAS DEVELOPED FOR THE MO (VI) DETERMINATION BY CHEMICAL IMMOBILIZATION OF QUERCETIN ON AN AGAROSE MEMBRANE. SPECTROPHOTOMETRIC STUDIES OF COMPLEX FORMATION BETWEEN THE QUERCETIN AND CA2+, NI2+, CU2+, CR2+, FE2+, FE3+, CO2+ AND PB2+ METAL IONS IN BUFFER SOLUTION INDICATED A SUBSTANTIALLY LARGER STABILITY CONSTANT FOR THE MO (VI) ION COMPLEX. CONSEQUENTLY, THE QUERCETIN WAS USED AS AN APPROPRIATE IONOPHORE FOR THE PREPARATION OF A SELECTIVE MO (VI) OPTICAL SENSOR, BY ITS IMMOBILIZATION ON A TRANSPARENT AGAROSE FILM. A COLOR CHANGE FROM YELLOW TO DARK YELLOW WAS OBSERVED BY CONTACTING THE SENSING MEMBRANE WITH MO (VI) IONS AT PH 2.7. THE EFFECTS OF PH, IONOPHORE CONCENTRATION, IONIC STRENGTH AND REACTION TIME WERE STUDIED. A LINEAR RELATIONSHIP WAS OBSERVED BETWEEN THE MEMBRANE ABSORBANCE AT 430 NM AND MO (VI) CONCENTRATIONS IN A RANGE FROM 20-800ML WITH AN R2 VALUE OF 0.993. NO SIGNIFICANT INTERFERENCE FROM 100 TIMES CONCENTRATIONS OF A NUMBER OF POTENTIALLY INTERFERING IONS WAS DETECTED FOR THE MO (VI) ION DETERMINATION. THE OPTICAL SENSOR WAS SUCCESSFULLY APPLIED TO THE DETERMINATION OF MO (VI) IN SPIKED WATER SAMPLES.

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APA: Copy

BAZGIR, ELHAM, HASHEMI, PAYMAN, & NAZARI SERENJEH, FARIBA. (2015). A QUERCETIN DIHYDRATE AGAROSE MEMBRANE OPTICAL SENSOR FOR SELECTIVE MONITORING OF MOLYBDENUM. SEMINAR OF CHEMISTRY AND ENVIRONMENT. SID. https://sid.ir/paper/913094/en

Vancouver: Copy

BAZGIR ELHAM, HASHEMI PAYMAN, NAZARI SERENJEH FARIBA. A QUERCETIN DIHYDRATE AGAROSE MEMBRANE OPTICAL SENSOR FOR SELECTIVE MONITORING OF MOLYBDENUM. 2015. Available from: https://sid.ir/paper/913094/en

IEEE: Copy

ELHAM BAZGIR, PAYMAN HASHEMI, and FARIBA NAZARI SERENJEH, “A QUERCETIN DIHYDRATE AGAROSE MEMBRANE OPTICAL SENSOR FOR SELECTIVE MONITORING OF MOLYBDENUM,” presented at the SEMINAR OF CHEMISTRY AND ENVIRONMENT. 2015, [Online]. Available: https://sid.ir/paper/913094/en

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