稀土硅铁合金中硅、钙、锰、稀土总量的快速分析

Quick Analysis of Silicon,Calcium,Manganese and All Rare Earth Quantity in Rare Earth Ferrosilicon Alloy

以塑料杯代替铂金皿，加硝酸、氢氟酸溶解稀土硅铁合金试样，用硼酸配位氟离子，稀释定量体积后，采用光度法在同一试液中一次将硅等四个元素的含量全部测出，可在２５ｍ ｉｎ 内完成，方法简便快速，准确度与重现性符合要求。

Substituting plastic cup for platinum utensil,solving rare earth ferrosilicon alloy sample used of nitric acid and hydrofluoric acid,using of boric acid matching with fluo ion,and thining out its volume to certain quantity,four elements can be determined used of spectrophotometry all at once in same experimental solution within 25 minutes.This method is convenient and quick,the accuracy and reappearance accord with production requirement.