Document Type and Number:
Japanese Patent JPS5137036
Kind Code:
B1
Abstract:
An atomic absorption photometer in which an electrical signal representative of the beam of light passed through a flame is integrated by an integrator, and an electrical signal representative of the emission spectrum peculiar to the flame is differentiated by a differentiator to be utilized as an integration starting signal. The photometer is provided with means for generating an electrical signal in response to the introduction of a standard sample into the flame and ceasing to generate the electrical signal in response to the introduction of a sample to be examined into the flame due to the fact that the emission spectrum of a particular substance in the sample to be examined appears when it is introduced into the flame. The photometer is further provided with means which generates an electrical signal in response to the application of both the electrical signal generated by said means and the output from the differentiator thereby offering a zero adjustment of the light absorbance.
Application Number:
JP4715670A
Publication Date:
October 13, 1976
Filing Date:
June 03, 1970
Export Citation:
International Classes:
G01N21/31; (IPC1-7): G01N21/00