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用光谱法测定元素含量,一般采用碳电极。如ИСЛ-30型原电极架,每支碳电极长度需50～60毫米,而采用国产北京或上海的万能电极架,碳电极的长度亦需38～42毫米。最近我们采用长度为18～25毫米光谱纯石墨碳电极,对以Cu、Bi、Cd、Tl、Te、In、Co、Se之单质或氧化物为基体,进行其他元素的定量分析测定,经过一年多的实践考核,证明采用18～25毫米长度的碳电极进行光谱分析,工作简便,对分析质量及仪器没影响,能节约50%的碳电极。达到上述目的需添置以下三个部件:1.自制电极夹。2.辅助电极夹。3.辅助电极座。如图1,2所示:
Determination of elemental content by spectrometry, the general use of carbon electrodes. Such as ИСЛ-30-type original electrode frame, each carbon electrode length of 50 to 60 mm, and use of homemade Beijing or Shanghai universal electrode frame, carbon electrode length also need 38 ~ 42 mm. Recently, we used a pure graphite carbon electrode with a length of 18 to 25 mm to conduct quantitative analysis of other elements based on simple substance or oxide of Cu, Bi, Cd, Tl, Te, In, Co and Se, Years of practical assessment proved that the use of 18 to 25 mm length of the carbon electrode for spectral analysis, the work is simple, the quality of the analysis and the instrument did not affect, can save 50% of the carbon electrode. To achieve the above objectives need to purchase the following three components: 1. Self-made electrode holder. 2. Auxiliary electrode clamp. 3. Auxiliary electrode holder. As shown in Figure 1,2: