Abstract
The Fraunhofer diffraction of laser radiation was applied to the correction of physical interference in a nebulizer used for atomic absorption spectrometry. A chamber with windows was mounted between the nebulizer system and the burner head. A He-Ne laser beam passing through the chamber was diffracted by droplets and constructed an image. The diffraction image received by a linear image sensor of 1024 elements was processed by a microcomputer to obtain the size distribution and the total volume of the droplets. The correction was made by dividing the absorbance by the total volume.
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Kitagawa, K., Kikuchi, H. Laser Fraunhofer Method for the Correction of Physical Interference in an Atomic Absorption Nebulizer. ANAL. SCI. 4, 53–57 (1988). https://doi.org/10.2116/analsci.4.53
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DOI: https://doi.org/10.2116/analsci.4.53