General Mathematical Approach to Emulsion Calibration in Optical Emission Spectroscopy

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Abstract
A direct use is made of the straight-line preliminary plot which obtains when the two-line emulsion calibration method is used with coordinates in terms of Seidel values, yielding an expression for the log of intensity ratio in terms of differences of densitometer readings, expressed as Seidel values, from a constant obtained from the preliminary plot. The equation may be used in a computer program or may be handled on special electronic desk calculators which provide for logarithmic manipulations. By substituting an arbitrary constant for one Seidel value, a table of relative intensities can be prepared for a list of transmittance readings.

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