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江苏省冶金研究所生产的铬锆铜是一种高导电性、高强度的耐磨、耐热合金。主要用于制作焊轮、焊块、焊头、焊咀、导电轴等的电阻接触电极。该铜合金除含铬、锆外,尚含有微量的钛、硅及镁。合金中微量镁的测定一般多采用比色法。可用的显色剂很多,而用得较多的有铬黑T、铬变酸2R及二甲苯胺兰Ⅱ等。但都需要预先分离干扰元素,操作比较麻烦、费时。原子吸
Metallurgical Institute of Jiangsu Province produced chromium zirconium copper is a high conductivity, high strength wear-resistant, heat-resistant alloys. Mainly used in the production of welding wheel, welding block, welding head, tip, conductive shaft resistance contact electrode. In addition to the copper alloy containing chromium, zirconium, it contains traces of titanium, silicon and magnesium. Determination of trace magnesium alloys generally use more colorimetry. There are a lot of available color developers, and more used chromium black T, Chromium acid 2R and xylidine Amlan II and so on. But all need to separate interference elements, the operation is more cumbersome and time-consuming. Atomic absorption