Fourier transformation of infrared spectroscopy and X-ray diffraction analyses of NPK mineral and biomineral fertilizers

Abstract

In this study, Fourier Transform Infrared Spectrophotometry (FTIR), X-Ray Powder Diffraction (XRPD), comparatively employed to provide a quick, relatively inexpensive and efficient method for identifying and quantifying of NPK fertilizers of the AGRO series and their immobilized by the bacteria Bacillus Subtilis BS-26. A comprehensive spectroscopic study of NPK fertilizers of the AGRO series was reported first in the IRTracer-100 spectra (400-4000 cm-1) and the mineralogical composition of the these fertilizers was carried out by Powder X-Ray diffractometry Lab-X, XRD-6100 using corporation Shimadzu, Japan at room temperature. For analysis, the initial pure form of fertilizers AGRO series such as AGRO-01, AGRO-02, AGRO-03, AGRO-04 and their immobilized by Bacillus Subtilis BS-26 bacteria were selected. Results were shown as pictures and diffraction patterns. They contain information on the samples' mineralogical composition and provide specific important structural and functional information.