一、前言金属硅是我国主要工业产品和大宗出口商品之一，以往只将铁、铝、钙作为杂质项目来衡量其品质的优劣。但是近年来，有些国家对我国出口的金属硅中磷含量开始限制，并且要求越来越严格。国内现行的关于金属硅检验标准［１－３］中未涉及磷的检验方法。经典的磷钥蓝吸光? I. Introduction Silicon metal is one of the major industrial products and bulk export commodities in China. In the past, only iron, aluminum and calcium were used as impurities to measure the quality of their products. However, in recent years, some countries have started to restrict the content of phosphorus in the metal silicon exported to our country and the requirements are getting more and more strict. The current domestic test on the silicon metal [1-3] does not involve phosphorus test methods. Classic Phosphorescent blue absorb light?