朗伯-比耳定律的近似线性关系应用于原子吸收光谱法的超微量分析  

Linear Approximation of Lambert-Beer′s Law and Its Application to Ultra-Micro Analysis by Atomic Absorption Spectrometry

作　　者：李大治[1] 沈锦荣[1] 姚力[1] 

机构地区：[1]南通大学理学院,南通226001

出　　处：《理化检验（化学分册）》2007年第3期207-208,共2页Physical Testing and Chemical Analysis(Part B:Chemical Analysis)

摘　　要：对原子吸收光谱法在超微量测试中，给出了朗伯一比耳定律的近似公式，建立了测定值和透光度的变化值之间的近似线性关系。试验表明，可使原子吸收光谱法的灵敏度提高2～3个数量级。Based on the Lambert-Beer＇s Law and considering the determination of ultramicro amounts of substances by AAS, an approximate linear relationship between the transmittancy and concentration of the measured substance was derived. As shown by experimental results, by its application, the sensitivity of AAS was increased by 2 to 3 orders of magnitude.

关 键 词：朗伯-比耳定律 超微量测试 近似线性关系 

分 类 号：O657.37[理学—分析化学]