火焰原子吸收光谱法测定复合金属催化剂洗液中的Ni、Co、Mn、Zn

Determination of Ni, Co, Mn and Zn in Washing Solution for Recycling Multi - metal Catalyst by Flame Atomic Absorption Spectrometry

用火焰原子吸收光谱法测定了复合金属催化剂洗液中的Ni、Co、Mn、Zn,比较了两种不同处理样品方法对分析结果的影响。Ni、Co、Mn的线性范围为0～4.0μg/mL,Zn的线性范围为0～0.8μg/mL。方法的回收率为94.58％～101.25％,相对标准偏差为0.8％-3.6％。本法应用于有机物中Ni、Co、Mn、Zn测定,取得较满意分析结果。

An analysis method of determining Ni, Co, Mn and Zn in washing solution for recycling multi -metal catalyst by flame atomic absorption spectrometry was established. Different results were obtained with two different sample pretreatment methods on same sample. When Ni.Co. Mn was in the range of 0-4μg/mL, its absorption was in line with concentration, and correlation coefficient was higher than 0.9995; when Zn was in the range of 0 - 0. 8μg/ml, its absorption was in line with concentration, and the correlation was 0. 9997. The recoveries was in the range of 94.58% - 101.25% , the RSD was in the range of 0.8%-3.6%. This method is suitable for analyzing Ni, Co, Mn and Zn in organic matter.