提高原子吸收分光光度计结果准确度的有效途径

Effective ways to improve the accuracy of atomic absorption spectrophotometer

中文关键词:  原子吸收分光光度计  石墨炉  火焰  影响因素  最佳条件

英文关键词:atomic absorption spectrophotometer  graphite furnace  flame  influencing factors  best conditions

中文摘要:

      原子吸收分光光度计主要用于分析微量到痕量级的元素, 具有检出限低、选择性好、精密度高、抗干扰能力强等特点, 广泛应用于地质、冶金、化工、农业、食品、生物、医药、环境保护等领域。原子吸收分光光度计主要有火焰和石墨炉原子化器两大类, 在分析过程中影响测量的可变因素很多, 各种测量条件不易重复, 对测定结果的准确度影响较大, 因此, 如何选择仪器的最佳工作条件十分重要。本文通过对仪器准备工作、仪器状态以及实验过程等影响因素进行分析优化, 总结出一些提高原子吸收分光光度计准确度的有效途径, 以保证检测结果的准确性。

英文摘要:

      Atomic absorption spectrophotometer is mainly used for analysis of trace elements, it has the characteristics of low detection limit, good selectivity, high precision, and strong anti-interference ability, and is widely used in the fields of geology, metallurgy, chemical industry, agriculture, food, biology, medicine, environmental protection, etc. Atomic absorption spectrophotometer is mainly divided into two categories, including flame and graphite furnace atomic device. Many variable factors can affect the measurement during the analysis, and various measurement conditions are not easy to repeat, having large influence on accuracy of determination results, therefore, it is very important to choose the best working conditions. This paper analyzed and optimized the influencing factors of the instrument preparation, status of the instrument and experiment process, and summed up some effective ways to improve the accuracy of atomic absorption spectrophotometer, so as to ensure the accuracy of test results.