Fluorine determination in human and animal bones by particle-induced gamma-ray emission

2001-08-01
Sastri, CS
Iyengar, V
Blondiaux, G
Tessier, Y
Petri, H
Hoffmann, P
Aras, NK
Zaichick, V
Ortner, HM
Fluorine was determined in the iliac crest bones of patients and in ribs collected from post-mortem investigations by particle-induced gamma-ray emission based on the (19)F(p,p ' gamma)(19)F reaction, using 2.0/2.5 MeV protons. The results indicate that for 68% of the human samples the F concentration is in the range 500-1999 mug g(-1). For comparison purposes fluorine was also determined in some animal bones; in some animal tissues lateral profiles of fluorine were measured.
FRESENIUS JOURNAL OF ANALYTICAL CHEMISTRY

Suggestions

Enantioselective chemoenzymatic synthesis of oseltamivir (tamiflu)(r) intermediates
Eşiyok, Hacı; Demir, Ayhan Sıtkı; Department of Biotechnology (2008)
The objective of this presented study was to synthesize optically active compounds considered to be key intermediates in the synthesis of Oseltamivir (Tamiflu) by performing chemical and biotechnological methods. Thereof, the carboethoxy cyclohexenone skeleton first was synthesized utilizing easily available substances. The synthesis of alpha-hydroxy ketones in enantiomerically pure form offers a great importance in the synthesis of biologically active compounds. Toward this fact, the enantioselective synth...
Epoxidation of Propene by High-Throughput Screening Method Over Combinatorially Prepared Cu Catalysts Supported on High and Low Surface Area Silica
Duzenli, Derya; ŞEKER, EROL; Senkan, Selim; Önal, Işık (2012-10-01)
Gas phase epoxidation of propene using molecular oxygen was studied by use of a high-throughput testing technique. A large number of catalysts including promoted and un-promoted Cu were synthesized in a much faster combinatorial fashion using a sol-gel method. Metal catalysts supported on high and low surface area silica were tested and ranked in a high-throughput activity and selectivity testing apparatus at different experimental conditions such as reaction temperature and reactant gas ratio. The amount o...
Photogalvanic effect in aqueous Methylene blue nickel mesh systems: Conversion of light into electricity
Bayer, IS; Eroğlu, İnci; Turker, L (Wiley, 2001-03-10)
The photogalvanic effect in electrochemical cells, employing aqueous Methylene blue and Fe(II)/Fe(III) couple electrolyte and nickel-mesh electrodes, were experimentally investigated. Five different standard H-cell configurations were set-up by modifying the electrolyte. Long-term open-circuit Voltage measurements were conducted in order to test the stability of the cells. Light on-off reproducibility experiments were also carried out during lengthy cell operations. By comparing experimental quantum yield w...
Adsorption calorimetry in supported catalyst characterization: Adsorption structure sensitivity on Pt/-gamma-Al2O3
Üner, Deniz (Elsevier BV, 2005-08-15)
In this study, the structure sensitivity of hydrogen, oxygen and carbon monoxide adsorption was investigated by changing the metal particle size of Pt/Al2O3 catalysts. The 2% Pt/Al2O3 catalysts were prepared by incipient wetness method; the particle size of the catalysts was modified by calcining at different temperatures. The differential heats of adsorption of hydrogen, carbon monoxide and oxygen were measured using a SETARAM C80 Tian-Calvet calorimeter. Hydrogen chemisorption sites with low and intermedi...
Adsorption calorimetry in supported catalyst characterization : adsorption structure sensitivity on pt(y-Al2o3
Üner, Murat; Üner, Deniz; Department of Chemical Engineering (2004)
In this study, the structure sensitivity of hydrogen, oxygen and carbon monoxide adsorption was investigated by changing the metal particle size of Pt/Al2O3 catalysts. 2 % Pt/Al2O3 catalysts were prepared by incipient wetness method; the particle size of the catalysts was manipulated by calcining at different temperatures. The dispersion values for the catalysts calcined in air at 683K, 773K and 823K were measured as 0.62, 0.20 and 0.03 respectively. The differential heats of adsorption of hydrogen, carbon ...
Citation Formats
C. Sastri et al., “Fluorine determination in human and animal bones by particle-induced gamma-ray emission,” FRESENIUS JOURNAL OF ANALYTICAL CHEMISTRY, pp. 924–929, 2001, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/68506.