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沉淀磷酸钙的主要成份是CaHPO_4·2H_2O,除用作肥料外,并可加入饲料中,促进牲畜发育生长。但如其含氟量高则将引起中毒及病害,故检验沉淀磷酸钙质量时含氟量是需控制的指标之一。用蒸馏法分离并用比色或容量法测定的方法繁杂费时,用电极法测定磷肥中的氟简易快速。我们试用自制的HDF电极测定沉淀磷酸钙中的氟,操作较原有分析方法简便,分析结果与蒸馏法一致。现将分析方
The main component of precipitated calcium phosphate is CaHPO 4 · 2H 2 O, besides being used as fertilizer, it can be added into feed to promote the growth and development of livestock. However, if its high fluorine content will cause poisoning and disease, it is one of the indicators to be controlled when testing the quality of precipitated calcium phosphate. Separated by distillation and colorimetric or volumetric method of determination of complex and time-consuming, with the electrode method for the determination of fluorine in the phosphate simple and quick. We try to use self-made HDF electrode to measure the fluorine in precipitated calcium phosphate. The operation is simpler than the original analysis method, and the analysis result is consistent with the distillation method. Now analytical side