原子吸收分光光度计火焰吸收法测定矿样中锌的含量  

Determination of zinc content in ore sample by flame absorption spectrophotometer

作　　者：罗凌云 LUO Ling-yun(Jiangxi Nonferrous Geological and Mineral Exploration and Development Institute,Nanchang 330000,China)

机构地区：[1]江西有色地质矿产勘查开发院,江西南昌330000

出　　处：《世界有色金属》2023年第15期142-144,共3页World Nonferrous Metals

摘　　要：在地质工作中,对矿样元素含量检测是非常重要的工作。其中,针对矿样锌元素检测也是极为重要的工作环节。当前,能够对矿样锌元素测量的方式有很多,通过使用原子吸收分光光度计火焰吸收法测定结果精确性高,整个操作过程非常简单,但是在具体使用过程中也会产生测定结果不准确的情况。基于这种情况下,应当对原子吸收分光光度计火焰吸收法测定锌元素含量的不稳定因素进行研究分析,将锌液体浓度按照梯度进行设置,在确保反应程度保持相关的基础上,从而避免锌自吸情况。通过对标准曲线进行观察,为确保检测矿样原子吸收分光光度计火焰吸收法的吸光度在测定区间范围内,需要结合待检测溶液浓度的实际情况,将已经稀释的待检测矿样溶液倍数进行提升,操作过程需要关注仪器使用情况,及时对标准溶液进行更换,有效提升测定效果。经过实验分析后,测定结果和矿样品位和实际测定矿样保持一致,金属成分保持稳定,有效解决了测定过程产生波动的问题,以此提升了测定结果的精确性。In geological work,the detection of mineral sample element content is very important work.Among them,zinc element detection is also an extremely important work link.At present,there are many ways to measure zinc elements in mineral samples.The accuracy of the results is high through the use of atomic absorption spectrophotometer flame absorption method.The whole operation process is very simple,but it will also produce inaccurate results in the specific use process.Based on this situation,it is necessary to study and analyze the unstable factors in the determination of zinc content by flame absorption method of atomic absorption spectrophotometer,and set the concentration of zinc liquid according to the gradient,so as to avoid the situation of zinc self-imbibition on the basis of ensuring that the reaction degree remains relevant.By observing the standard curve,in order to ensure that the absorbance of the flame absorption method of the atomic absorption spectrophotometer is within the measurement range,it is necessary to increase the multiple of the diluted mineral sample solution to be detected based on the actual situation of the concentration of the solution to be detected.In the operation process,it is necessary to pay attention to the use of the instrument and replace the standard solution in time to effectively improve the measurement effect.After the experimental analysis,the determination result is consistent with the ore sample and the actual determination sample,and the metal composition remains stable,which effectively solves the problem of fluctuation in the determination process,so as to improve the accuracy of the determination result.

关 键 词：原子吸收分光光度计 火焰吸收法 矿石分析 锌元素测定 

分 类 号：P575[天文地球—矿物学]