Статья

Preparation and comprehensive characterization of a calcium hydroxyapatite reference material

M. MarkovićAmerican Dental Association Foundation, Paffenbarger Research Center, National Institute of Standards and Technology, Gaithersburg, MD 20899, USABruce O. FowlerNational Institute of Dental and Craniofacial Research, NIH, Craniofacial and Skeletal Diseases Branch Research Associate Program at the National Institute of Standards and Technology, Gaithersburg, MD 20899, USAM.S. TungAmerican Dental Association Foundation, Paffenbarger Research Center, National Institute of Standards and Technology, Gaithersburg, MD 20899, USA

2004en

ABI

Аннотация

Numerous biological and chemical studies involve the use of calcium hydroxyapatite (HA), Ca10(PO4)6(OH)2. In this study detailed physicochemical characterization of HA, prepared from an aqueous solution, was carried out employing different methods and techniques: chemical and thermal analyses, x-ray diffraction, infrared and Raman spectroscopies, scanning and transmission microscopies, and Brunauer, Emmett, and Teller (BET) surface-area method. The contents of calcium (Ca(2+)), phosphate (PO4 (3-)), hydroxide (OH(-)), hydrogenphosphate (HPO4 (2-)), water (H2O), carbonate (CO3 (2-)), and trace constituents, the Ca/P molar ratio, crystal size and morphology, surface area, unit-cell parameters, crystallinity, and solubility of this HA were determined. This highly pure, homogeneous, and highly crystalline HA is certified as a National Institute of Standards and Technology (NIST) standard reference material, SRM 2910.

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Идентификаторы

DOI: 10.6028/jres.109.042

Цитирования и источники

Цитирований: 2Использованных источников: 0

Показатели — AkademScholar