The Federal Bureau of Mines has derived a mathematical expression for the emulsion calibration curve used in optical emission spectroscopy. Employing a two-step preliminary curve method, an approximation of the first derivative of the calibration curve is formed and integrated. The
final equation is I = (1 + βS)−α where I is the line intensity, S is the transform that linearizes the preliminary curve, and α and β are constants.
U.S. Department of the Interior, Bureau of Mines, Reno Metallurgy Research Center, Reno, Nevada 89520
Publication date: January 1, 1979
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