title: Preparation of hydroxyapatite from animal bones.
abstract: This paper presents the method of obtaining hydroxyapatite from animal bones. Bone sludge and calcined products were characterized by X-ray diffraction (XRD), Fourier transformed infrared spectroscopy (FT-IR) and scanning electron microscopy (SEM). Calcium concentration was determined with titration, and phosphorus--spectrophotometrically. Making use of the AAS and ICP methods the content of microelements was determined. In all the products, hydroxyapatite was the only crystalline phase indicated. The FT-IR spectra confirmed that calcination removed the total of organic substances. Calcium and phosphorus contents were 38% and 18%, respectively, which corresponded to the Ca/P molar ratio of nonstoichiometric hydroxyapatite. The specific surfaces of products were measured by BET method. The volume of micro- and mesopores was determined.
authors.affiliation: Institute of Inorganic Chemistry and Technology, Cracow University of Technology, Cracow, Poland. asobczak@chemia.pk.edu.pl
authors.forename: Agnieszka
authors.initials: A
authors.lastname: Sobczak
authors.forename: Zygmunt
authors.initials: Z
authors.lastname: Kowalski
authors.forename: Zbigniew
authors.initials: Z
authors.lastname: Wzorek
mesh_terms: D000818:Animals; D001672:Biocompatible Materials / Q000737:chemistry / Q000302:isolation & purification; D001842:Bone and Bones / Q000737:chemistry* / Q000648:ultrastructure; D002118:Calcium / Q000032:analysis; D002417:Cattle; D017886:Durapatite / Q000737:chemistry / Q000302:isolation & purification*; D006358:Hot Temperature; D008855:Microscopy, Electron, Scanning; D010758:Phosphorus / Q000032:analysis; D017550:Spectroscopy, Fourier Transform Infrared; D013552:Swine; D014961:X-Ray Diffraction
chemical_list: D001672:Biocompatible Materials; D010758:Phosphorus; D017886:Durapatite; D002118:Calcium