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本文针对含金钠长石提金工艺中钠含量高的特点,在检测手段不完备的条件下,经反复实验,成功地将AAS—1型原子吸收分光光度计发射功能用于钠的测定.该方法操作简便,不需要元素灯,并与蔡司三型火焰光度计对比,其结果是满意的.提高了分析速度和准确度.实验表明,SiO_2 64%,Al_2O_316%,Fe_2O_3 20%,CaO 11%,MgO 10%以下不干扰测定.试剂:硝硫混酸(7+3)、氢氟酸、硝酸等均为分析纯.钠标准溶液:称取经500℃灼烧过基准氯化钠1.8859克,于250毫升烧杯中,用水溶解后,移入1000毫升容量瓶中(标准溶液中应加入适量的铝,以保持与基体一致),用
In this paper, aiming at the high content of sodium in the gold-bearing albite gold extraction process, the AAS-1 atomic absorption spectrophotometer emission function was successfully used in the determination of sodium after repeated experiments under the condition of incomplete detection. The method is easy to operate and does not require elemental light, and the results are satisfactory compared with the Zeiss III flame photometer, which increases the speed and accuracy of the analysis. Experiments show that SiO 2 64%, Al 2 O 3 16%, Fe 2 O 3 20%, CaO 11 %, MgO 10% or less does not interfere with the determination Reagents: Nitric acid mixed sulfuric acid (7 +3), hydrofluoric acid, nitric acid and so on are analytical grade sodium standard solution: Weigh through the 500 ℃ burning baseline sodium chloride 1.8859 grams, In a 250 ml beaker, dissolve in water and transfer to a 1000 ml volumetric flask (standard solution should be added with appropriate amount of aluminum to keep it in line with the matrix)