The Sample was decomposed with Na2C03+KCIO3+ZnO. After extraction with water, an aliquot portion of the solution was taken for direct colori- metric determination, which was based on the decolorisation of the purple com- plex formed by arsenazo III with zirconium.
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姚宗虞,陈菊英,1983,黄铁矿中氟的快速比色测定[J].岩石矿物学杂志,2(1):65~66.,1983,RAPID COLORIMETRIC DETERMINATION OF FLUORIDE ION IN PYRITE[J]. Acta Petrologica et Mineralogica,2(1):65~66.
