5 2. With this test method, distillation is eliminated because the electrode is not affected by the interferences common to colorimetric procedures. 2017/2018 . • Standard methods for the examination of water and wastewaters, AWWA, 19th edition, 1995. chem 3214-0a1 post lab: potentiometric determination of fluoride in drinking water using fluoride ionselective electrode 11/1/17 introduction ion-selective. Please … Sign in Register; Hide. Determination of Fluoride and Chloride Contents in Drinking Water by Ion Selective Electrode Amra Bratovcic and Amra Odobasic University of Tuzla, Faculty of Technology, Bosnia and Herzegovina 1. The method can be used for water containing at least 20 µg/litre (Slooff et al., 1988). This part of ISO 17951 specifies a method for the determination of fluoride in waters, waste waters and effluents by flow injection analysis (FIA). ANALYTICAL METHODS Fluoride is usually determined by means of an ion-selective electrode, which makes it possible to measure the total amount of free and complex-bound fluoride dissolved in water. 1.3 Test Method B covers the accurate measurement of simple fluoride ion in water by means of an ion selective electrode. The theoretical Nerstian slope for monovalent cations was followed in order to assure the accuracy of the method. Any insoluble or complexed fluoride is converted to fluoride ion by a manual distillation procedure from sulfuric/phosphoric acid. 2. Introduction The fluoride element is found in the environm ent and constitutes 0.06 0.09 % of the earth s crust. Hydrology Project Training Module File: “ 36 Measurement of Fluoride.doc” Version 23/02/00 Page 4 3. Post Lab #8 Determination of Fluoride. Figure 2 shows the response given in the fluoride ion determination at pH = 5.0 by using the fluoride ion selective electrode. Analytical Chemistry (CHE 3214) Academic year. Helpful? The correlation coefficient was 0.999. Course. Measurement of the fluoride concentration in vinegar samples A simple and sensitive analytical method for fluoride in urine by ion selective electrode (ISE) method was presented. Determination of fluoride in real drinking water samples The method under investigation was tested using 3 real drinking water samples which had been collected and analysed by the Central Public Health Laboratory of the Ministry of Health, Palestine, which is responsible for managing water quality. University. The University of Texas at San Antonio. lab report . Comments. Concentrations of fluoride from 0.1 to 1000 mg/L may be measured. Fluoride is not found naturally in the ai r in large quantities. Ion-Selective Electrode Determination of Fluoride Ion I. Introduction A. Ion-Selective Electrodes The amount of a specific ion contained in an aqueous solution can be determined by direct potentiometric measurement of the voltage of a galvanic cell such as shown below. Share.