标准摘要
[中文适用范围]： 规定了一种基于将测试部分与碳酸钠和硼酸熔融并溶解在高氯酸溶液中，然后形成钼磷酸铵络合物并用乙酸异丁酯萃取该络合物的方法。 溶液被乙炔/一氧化二氮火焰吸收，通过测量钼空心阴极灯发出的 379.8 nm 线的吸光度来测定钼和磷。 [外文原描述]： Specifies a method based on the fusion of a test portion with sodium carbonate and boric acid and dissolution in perchloric acid solution, followed by formation of the ammonium molybdophosphate complex and extraction of the complex with isobutyl acetate. The solution is absorbed into an acetylene/dinitrogen monoxide flame and the molybdenum, and hence the phosphorus, is determined by measuring the absorbance of the 379,8 nm line emitted by a molybdenum hollow-cathode lamp.
英文名称Cryolite, natural and artificial, and aluminium fluoride for industrial use — Determination of phosphorus content — Atomic absorption spectrometric method after extraction