论文部分内容阅读
金属锌、铝及其合金中镉的测定,用原子吸收分光光度法,操作简便,干扰少.在5%盐酸介质中,500毫克锌,100毫克铝,6.5毫克铜,1毫克镍、锰、锡,0.5毫克钛,0.3毫克镁,0.1毫克铁、硼,0.01毫克锆,单独存在或混合在一起,对25微克/50毫升镉的测定不产生干扰.方法适合于0.00x～0.x%镉的测定.工作条件:WFD-Y2型原子吸收分光光度计;波长228.8纳米;灯电流6毫安;乙炔流量1升/分;空气流量7.5升/分;燃烧器高度7毫米;狭缝0.1毫米.
Determination of cadmium in metallic zinc, aluminum and their alloys by atomic absorption spectrophotometry is simple and easy to operate with less interferences In the 5% hydrochloric acid medium, 500 mg of zinc, 100 mg of aluminum, 6.5 mg of copper, 1 mg of nickel, manganese, Tin, 0.5 mg of titanium, 0.3 mg of magnesium, 0.1 mg of iron, boron, 0.01 mg of zirconium, alone or in combination, do not interfere with the determination of 25 μg / 50 ml of cadmium The method is suitable for use in the range of 0.00x to 0.x% Determination of cadmium. Working conditions: WFD-Y2 atomic absorption spectrophotometer; wavelength 228.8 nm; lamp current 6 mA; acetylene flow rate of 1 liter / min; air flow 7.5 liters / min; burner height of 7 mm; Mm.