Raws li kev hloov cov kua qaub qis los ntawm cov kua qaub siab kub, F - thiab Cl - yog distilled ua ke nrog sulfuric acid ua distillation tus neeg sawv cev ntawm ib qho kub rau kev sib cais thiab enrichment.Siv CIC-D120 ion chromatograph, SH-AC-3 anion txhua.3,6m wb..
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