| 摘要 |
A quantitative analysis of fluorine is accomplished by adding 6.0-7.0 M/W Na2CO3, 5.7-7.0 M/W SiO2 to the fluorine to the sampling material, mixing in and filling a crucible with the mixt., keeping the mixt. at 1200 deg. C for one hour, dissolving it in water, and measuring quantity of fluorine with exclusive electrode of fluorine ion.
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