Brangule, AgneseGross, Karlis Agris2021-04-302021-04-302015Brangule, A & Gross, K A 2015, Importance of FTIR spectra deconvolution for the analysis of amorphous calcium phosphates. in 12th Russia/CIS/Baltic/Japan Symposium on Ferroelectricity (RCBJSF-12) and 9th International Conference "Functional Materials and Nanotechnologies" (FM &NT-2014) : Conference Proceedings. 1 edn, vol. 77, 012027, IOP Conference Series: Materials Science and Engineering, 12th Russia/CIS/Baltic/Japan Symposium on Ferroelectricity (RCBJSF-12) and 9th International Conference "Functional Materials and Nanotechnologies" (FM &NT-2014), Riga, Latvia, 29/09/14. https://doi.org/10.1088/1757-899X/77/1/012027conference1757-8981https://dspace.rsu.lv/jspui/handle/123456789/4003Publisher Copyright: © Published under licence by IOP Publishing Ltd. Copyright: Copyright 2015 Elsevier B.V., All rights reserved.This work will consider Fourier transform infrared spectroscopy-diffuse reflectance infrared reflection (FTIR-DRIFT) for collecting the spectra and deconvolution to identify changes in bonding as a means of more powerful detection. Spectra were recorded from amorphous calcium phosphate synthesized by wet precipitation, and from bone. FTIR-DRIFT was used to study the chemical environments of PO4, CO3 and amide. Deconvolution of spectra separated overlapping bands in the 4PO4, 2CO3, 3CO3 and amide region allowing a more detailed analysis of changes at the atomic level. Amorphous calcium phosphate dried at 80 oC, despite showing an X-ray diffraction amorphous structure, displayed carbonate in positions resembling a carbonated hydroxyapatite. Additional peaks were designated as A1 type, A2 type or B type. Deconvolution allowed the separation of CO3 positions in bone from amide peaks. FTIR-DRIFT spectrometry in combination with deconvolution offers an advanced tool for qualitative and quantitative determination of CO3, PO4 and HPO4 and shows promise to measure the degree of order.1293534enginfo:eu-repo/semantics/openAccessamorphous calcium phosphatebonespectroscopyFTIR-DRIFTdeconvolution2.5 Materials engineering1.4 Chemical sciences3.1. Articles or chapters in proceedings/scientific books indexed in Web of Science and/or Scopus databaseGeneral Materials ScienceGeneral Engineering/dk/atira/pure/researchoutput/researchoutputtypes/contributiontobookanthology/conference10.1088/1757-899X/77/1/012027http://www.scopus.com/inward/record.url?scp=84924666876&partnerID=8YFLogxK