Normalization of Scan and Differentiation

In the foregoing sections we became acquainted with the influence of slit width, scan speed, number of data points, etc., on the resolution of the derivatives. Therefore, normalization of conditions is undoubtedly required if characteristic data of the spectrum is to be stored. In practice, the conditions compiled in Table 4-9 have proved to be a success [33]. 

In Table 4-9 there are two possibilities given for differentiation, namely. Ax for the difference quotient method, and the number of points for Savitzky-Golay polynomials. We prefer the first of these two methods because it is simpler and, nevertheless, very effective. Do not forget to correct, if necessary, all AA shifts, in order to allow for correct estimation of A positions of all maxima and minima. 

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