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Title

CONSTRUCTION OF NOVEL FLUORIDE POTENTIOMETRIC SENSORS BASED ON CONDUCTING POLYPYRROLE DOPED WITH DIFFERENT ANIONS

Pages

 Start Page | End Page

Abstract

 FLUORIDE (F-) IS AN IMPORTANT AND REACTIVE ANION, PRESENT IN WATER, MINERAL, MANY PLANTS, AIR AND FOOD. OBVIOUSLY, THIS ELEMENT IS AN IMPORTANT TOOL IN THE PREVENTION OF TOOTH DECAY AND CARIES [1], BUTEXCESS FLUORIDE CAN CAUSE DENTAL AND SKELETAL FLOUROSIS, KIDNEY FAILURE AND NEPHROLITHIASIS [2]. THIS DIVERSITY OF CHARACTERISTIC, BOTH BENEFICIAL AND DESTRUCTIVE ASPECTS, MAKES THE SENSING AND MEASUREMENT OF FLUORIDE ONE OF CONSIDERABLE CURRENT INTEREST FOR ENVIRONMENTAL, BIOMEDICAL, INDUSTRIAL-PROCESS MONITORING. NUMEROUS METHODS HAVE BEEN EXPLOITED TO MEASUREMENT OF FLUORIDE IN DIFFERENT SAMPLE MATRICES [3-5] OF WHICH THE MOST IMPORTANT AND INTERESTING IS USING OFFLUORIDE ION SELECTIVE. IN THIS RESEARCH, WE HAVE INVESTIGATED THE POTENTIOMETRIC BEHAVIOR OF ELECTRODES BASED ON POLYPYRROLE DOPED WITH FOUR DIFFERENT KINDS OF DOPANTS, I.E., POLYPYRROLE/PERCHLORATE (PPY-CLO4) AND POLYPYRROLE/CHLORIDE (PPY-CL), POLYPYRROLE/FLUORIDE (PPY-F), AND POLYPYRROLE/NAFION (PPY-NAFION), TOWARDS FLUORIDE ION.

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