Atomic absorption spectrometry apparatus and atomic absorption spectrometry

摘要

PROBLEM TO BE SOLVED: To realize a new atomic absorption spectrometer using self-absorption.;SOLUTION: An atomic absorption spectrometer is composed of an atomizer 1, a mirror 2 and a spectrometer 3. The atomizer 1 generates plasma (atomized plasma 5) containing an atomized sample. The emission intensity of the atomized plasma 5 is measured in a state without the mirror 2 to determine the emission intensity Ir1 of a resonance line spectrum of a target element and the emission intensity Iul of an excitation line spectrum of Ar. In addition, an emission intensity is measured in a state where the mirror 2 is disposed and ghost (ghost plasma 6) of the atomized plasma 5 is generated by reflection of light by the mirror 2 to determine the emission intensity Ir of the resonance line spectrum of the target element and the emission intensity Iu of the excitation line spectrum of Ar. The absorption rate by self-absorption of the target element can be calculated from Irl, Iul, Ir and Iu.;COPYRIGHT: (C)2012,JPO&INPIT