ANALYZER

PURPOSE:To enable selective use of an atomic absorbance measurement and a spectral absorbance measurement for a higher measuring efficiency by operating an atomization section in the analysis by an atomic absorbance analysis method while a sample cell is set in the analysis by an absorptiometry. CONSTITUTION:In addition to a resonance line of an element to be measured for use in an atomic absorptive analysis method, non-resonance line of the element and gas sealed in to light a lamp stably are radiated from a line spectrum radiation source 31. In the absorptiometry, the spectrum lines are used with an absorption peak waveform of a molecule absorption spectrum of components to be analyzed and with that close thereto. A pulse lighting with a lighting power source 14 is used for the radiation source 31 to be distinguished from external light and light emitted from an atomization section 33. An output of a detector 36 is measured with a sampling signal synchronizing a lighting frequency from the power source 14 with a signal processing section 37.