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本方法采用石墨粉为介质,碳酸钠与硼砂快速熔样法,以瓷坩埚代替铂、镍、银坩埚,解决中、小工厂缺少铂、镍、银坩埚的困难,熔样速变快,几分钟内即可熔好,对测定各元素均无干扰。硅的含量较高,可达50%以上,为了采用比色法能取得较好的分析结果,本方法采用了差示比色法,以提高测定的准确度,不仅允许称样量较多,也提高了比色时测量的精度。同时可利用同一份试液测定锰、铁、镁、稀土等元素
The method adopts the graphite powder as the medium, the sodium carbonate and the borax rapid melting method, replaces platinum, nickel and silver crucible with porcelain crucible, and solves the problems that the small factories lack the difficulty of platinum, nickel and silver crucible, Melting within minutes, no interference on the determination of the elements. The content of silicon is relatively high, up to 50%. In order to obtain better analytical results by colorimetric method, this method uses the differential colorimetric method to improve the accuracy of the determination, which not only allows more samples to be weighed, It also improves the accuracy of colorimetric measurements. At the same time can use the same test solution determination of manganese, iron, magnesium, rare earth and other elements