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铟属于稀贵金属,国内有人主张采用氧化铟粉末光谱法测铟。资料介绍以直径1/4时(合6.35毫米)铟棒,用水冷电弧激发光谱法。我们采用甘油熔融,氟塑料模铸型,以直径10毫米铟棒,果树剪加工平面,铟-碳对电极,断续交流电弧激发光谱,可同时测定金属中Al、As、Cd、Cu、Fe、Mg、Pb、Si、Sn、Tl、Zn等11个杂质元素。试验部分 (一)激发光源和对电极的选择在电弧电压220伏特,电流7.5安培条件下,用不同对电极,以交流电弧和火花激发光谱试验,其结果如表1。
Indium is a rare metal, some people advocate the use of indium oxide powder spectroscopy to measure indium. Information to indium rods diameter of 1/4 (6.35 mm), with water-cooled arc excitation spectroscopy. We use glycerin melting, fluorine plastic mold, with diameter 10 mm indium rods, fruit tree shear processing plane, indium - carbon counter electrode, intermittent AC arc excitation spectrometry, simultaneous determination of metal Al, As, Cd, Cu, Fe , 11 impurity elements such as Mg, Pb, Si, Sn, Tl and Zn. Experimental part (a) of the excitation light source and the choice of the electrode voltage of 220 volts in the arc, the current 7.5 amps with different pairs of electrodes to AC arc and spark excitation spectroscopy test, the results shown in Table 1.