Orhan Acar,*,a Ali Rehber Türkerb and Ziya Kılıçc
a Gazi University, Ataturk Occupational High school, 06750, Akyurt, Ankara,
Turkey
b Gazi University, Arts and science Faculty, Chemistry Department, 06500,
Ankara, Turkey
c Gazi University, Education Faculty, Chemistry Department, 06500, Ankara,
Turkey
* Corresponding author: E-mail: oacar@gazi.edu.tr
Abstract
Flame atomic absorption spectrometric determination of iron, magnesium,
strontium and zinc in 44 deciduous human
teeth collected from the people with different ages was carried out by using K +
La chemical mixture. Optimum concentration
and concentration ratio of K + La mixture on the absorbance values of analytes
in the Bone Ash SRM 1400
(NIST) were studied. Detection limits (LOD) of analytes in the absence or
presence of K + La mixture and its components
were determined and compared. Detection limits in the presence of K + La mixture
are 11 µg L–1 for Fe, 8.0 µg L–1
for Mg, 6.3 µg L–1 for Sr and 18 µg L–1 for Zn. With K + La mixture proposed and
FAAS, Bone Ash SRM 1400 material
was analyzed and the results found were in agreement with the certified values.
The percent recoveries were increased
up to 102% for analytes. La + K mixture proposed was applied to the
determination of Fe, Mg, Sr and Zn in tooth
samples.
Keywords: Tooth; FAAS; La + K mixture, metals