RMS of Subsamples

 

See first the previous video:

Trim spectra

It is important to know the sampling error, and for this reason the calculation of the RMS of subsamples is very important. 

The RMS is a way to obtain a value for the spectral differences between all the repacks.

For the calculation of the RMS simply scan diiferent repacks of the same sample and homogenize the sample betwee subsamples. Try to do it as best as you can in order to get a low RMS.

Same products are quite heterogeneus and for that reason the RMS can increase. If we grind the sample the RMS wil decrease much more.

The RMS value wil be usefull for some comparisons during the standardization or database transfer.