Publication date: August 2014
Source:Geoderma, Volumes 226–227
Author(s): Xueming Yang
This note extends the topic of the performance of ashing soil samples and then using spectral subtraction of diffuse reflectance Fourier transform mid-IR spectroscopy (DRIFTS) of original and ashed samples in highlighting the significance of the organic fraction. It was found that accurately interpreting the ash subtracted spectra (mid-infrared range from 40002 O2 , NaOCl, or Na2 S2 O8 is associated with inaccuracies in spectra interpretation from organic remains (uncompleted organic matter removal) and spectral changes of minerals from wet ashing processes. Accordingly, with the current techniques of dry and wet ashing it is impossible to accurately interpret the ash subtracted spectra of soil samples.
Source:Geoderma, Volumes 226–227
Author(s): Xueming Yang