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应用化学分析方法测定矿石中钡,手续都较烦琐。近年来,以原子吸收测定钡的方法,具有简便、快速的优点。本工作研究了原子吸收法测定矿石中钡的条件、各种酸的影响、其他元素的干扰试验及其消除方法;制定了以碳酸钠和氢氧化钠混合熔剂熔矿的简便分离方法,应用于矿石中钡的测定,获得了较好的结果。实验部份 (一)仪器及其工作条件仪器:地质科学研究院南京仪器室制造的YXG—71型原子吸收光谱仪。经试验确定下列为测定钡的条件: 辐射源:钡空心阴极灯,灯电流4.8毫安。波长:5536埃。狭缝:0.1毫米(2埃)。燃烧器高度为6.5毫米。并经试验证明:燃烧器不用流水冷却,可以得到更高
Application of chemical analysis of barium in ore, procedures are more cumbersome. In recent years, the method of atomic absorption determination of barium has the advantages of simplicity and speed. This work studied the atomic absorption method to determine the conditions of barium in ore, the influence of various acids, interference test of other elements and the elimination method. A simple and convenient separation method for melting ore with sodium carbonate and sodium hydroxide was developed. Determination of barium ore, obtained good results. Experimental part (A) of the instrument and its working conditions Instrument: Institute of Geological Science Nanjing Instrument Room Manufacturing YXG-71 atomic absorption spectrometer. The following test conditions were determined for the determination of barium: Emitter: barium hollow cathode lamp, lamp current 4.8 mA. Wavelength: 5536 angstroms. Slit: 0.1 mm (2 angstroms). Burner height is 6.5 mm. Proved by the experiment: the burner does not need running water cooling, can get higher