Determination of Fluorine in coal using High-temperature combustion hydrolysis-T70 automatic potentiometric titrator
GUO Pei
ZHAO Xiu-hong
WANG Ming-xing
CHANG E
Abstract：Combining with the determination principle of determination of fluorine in coal using high temperature combustion hydrolysis-automatic potentiometric titrator, from aspects such as collecting vials, quartz sand, total ion adjusting buffer solution, oxygen and water vapor flow, steam passing time before measuring the sample, residence time of the sample in low temperature zone and the system air tightness check, the influencing factors of determination of fluorine in coal using high-temperature combustion hydrolysis-T70 potentiometric titrator were discussed, through the research analysis of detection limit, precision, accuracy and recovery rate of this method, we could see that this method had characters like good repeatability and reproducibility, simple and rapid operation, good practicality and small interference.
Keywords：high temperature combustion hydrolysisautomatic potentiometric analyzerfluorine in coaltotal ion adjusting buffer solutionsystem air-tightnessinfluencing factorrecovery rate
Publication Date：2017-01-01
Pages：5( 42-46 )