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一、实驗目的青銅10-3-1.5和9-4的化学分析方法,不仅手續煩杂,需时較長,而且不能得到較好的結果。因为鋁、鉄的氫氧化物沉淀內夾有氫氧化錳,灼燒后的吸水性很强,給分析結果帶来了很大的誤差。因此試用光譜方法来解决这个問題是很有实际意义的。在这个方法中,作者采用火花光源(FF—20),它有高度的灵敏性(10~(-3)～10~(-5)%),比化学分析快7～8倍。二、分析方法1.标准电极的来源:在光譜分析中标准电极是很重要的,成分准确与否,直接影响分析結果,因此,对标准电极的要求比較严格,必須符合下述条件:
First, the purpose of the experiment Bronze 10-3-1.5 and 9-4 chemical analysis methods, not only complicated procedure, take a longer time, and can not get better results. Because of the aluminum, manganese hydroxide hydroxide precipitate within the sandwich of manganese hydroxide, after burning strong water absorption, the analysis brought great error. Therefore, it is very practical to try the spectroscopic method to solve this problem. In this method, the author uses a spark light source (FF-20) which has a high degree of sensitivity (10 -3 to 10 -5%), 7 to 8 times faster than chemical analysis. Second, the analysis method 1. Standard electrode source: standard electrode in the spectral analysis is very important, the composition is accurate or not, the direct impact on the analysis results, therefore, the more stringent requirements of the standard electrode must meet the following conditions: