| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for quantifying the content of hydrogen fluoride in nonaqueous electrolyte conveniently with high accuracy, without using a substance inhibiting the measurement of hydrogen fluoride, e.g., water or glass container, in the measurement. ! SOLUTION: A quantification method of the content of hydrogen fluoride comprises a step of measuring a nonaqueous electrolyte containing a fluorine-containing electrolyte and a nonaqueous solvent by 19FNMR method together with an internal standard material, by using an NMR tube of non-glass, and then quantifying the content of hydrogen fluoride in the nonaqueous electrolyte based on the internal standard material. ! COPYRIGHT: (C)2014,JPO&INPIT |
