论文部分内容阅读
实验了在柠檬酸-Al(NO3)3-HNO3混合溶剂中直接加入喹钼柠酮沉淀剂分解磷灰石的处理方法。结果表明,在微沸加热5 min条件下,磷钼酸喹啉可沉淀完全。容量法测定全磷的回收率>99%。此方法测得结果与磷钼酸喹啉重量法分析结果相符,并用测定磷灰石标样中全磷进行验证,表明方法可靠。
The treatment method of decomposing apatite with Quinoclone precipitant in citric acid-Al (NO3) 3-HNO3 mixed solvent was experimented. The results showed that quinoline phosphomolybdic acid could be precipitated completely under the condition of slight boiling for 5 min. Volumetric method for the determination of total phosphorus recovery> 99%. The results of this method are in good agreement with the results of quinoline phosphomolybdic acid gravimetric analysis and verified by the determination of total phosphorus in apatite standard samples, indicating that the method is reliable.