Abstract
In the present paper the content of the trace metals Ca, Mg, Cu, Fe and Bi, contained in some IAG, Japanese and Chinese photographic gelatins, is evaluated by atomic absorption spectroscopy. The optimum analytical condition (wavelength, slit magnitude, lamp current, ratio of air to acetylene, etc.) were selected and determined for every test element. The effect of the viscous macromolecular gelatin on the analytical results is tested and a method to avoid this effect is suggested. The analytical results of IAG gelatin are in good agreement with those obtained by IAG researchers. The atomic absorption spectroscopy has been proved to be a powerful tool in rapid determination of the trace metal elements in photographic gelatin.
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