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Using either SEC or GPS the lab can give a curve with information on the distribution of a polymer sample.
However this curve has to be integrated in order to get the distribution data. At the same time this curve will typical have a large number of points, maybe around 1000 so a smaller distribution with the same shape is needed to perform calculations.
This function lets the user integrate a SEC/GPS curve and at the same time generate a distribution of a wanted size.
The integration method is Trapeze giving N-1 pseudo components.
To use the function use either the Distribution wizard or the calculation wizard.
The wizard prepares a range where the user can enter the SEC data. The routine will try to read all the cells but only the cells with a valid double in both cells are used.
This function is defined in C# as:
public Object[,] SECFit(Range SECData, int Size, [In, Optional] object Mn, [In, Optional] object Mw, [In, Optional] object Mz, [In, Optional] object AdvVLXE, [In, Optional] object AdvUser)
Below is a screen dump where some data has been generated and a smaller distribution with 100 pseudo components has been
generated that match the experimental data.