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一、概述: 塞曼效应原子吸收分光光度计的基本原理是用石墨加热炉使液态试样变成基态自由原子,通过测量自由原子对光辐射的吸收达到对元素进行定量分析。由于采用塞曼效应的原理,用石源自身的偏振光作参比光束扣除背景(扣除原子蒸气中微粒的散射和分子吸收造成的误差)。从而使扣除背景能力增强,提高了分析准确性。由于这种仪器分析灵敏度高、快速、准确、重现性好、选择性好,对于分析痕量元素(10~(-9)～10~(-12)克)有突出的优点。被广
First, an overview: Zeeman effect atomic absorption spectrophotometer basic principle is to use graphite heating furnace liquid sample into the ground state free atoms, by measuring the absorption of free atoms on the optical radiation to achieve quantitative analysis of the elements. Due to the principle of Zeeman effect, Shiyuan’s own polarized light is used as the reference beam to deduct the background (excluding the scattering caused by particles in the atomic vapor and the error caused by molecular absorption). So that the deduction of background ability to enhance and improve the accuracy of the analysis. Due to its high sensitivity, fastness, accuracy, reproducibility and selectivity, this instrument has outstanding advantages in the analysis of trace elements (10-9 (10-12) g). It is wide