Abstract
A new chemical method is reported for the determination of total fluoride in complex liquids and suspensions, such as fruit juices, urine, serum and blood. It is based on the formation of the A1F radical in a graphite furnace afterin situ oxygen-assisted ashing of the untreated sample. The absorbance of this radical is measured at 227.45 nm. The method is relatively easy to use and provides a low detection limit (14 ng/ml) and reasonable reproducibility (5–10%).
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References
F. H. Cox, O. Backer,Caries Res. 1968,2, 69.
P. Venkateswarlu,Clin. Chim. Acta 1975,59, 277.
K. Chiba, K. Tsunoda, H. Haraguchi, K. Fuwa,Anal. Chem. 1980,52, 1582.
K. Tsunoda, K. Fujiwara, K. Fuwa,Anal. Chem. 1977,49, 2035.
K. Dittrich, V. M. Shkinev, B. V. Spivakov,Talanta 1985,2, 1019.
M. Gomez, M. A. Palacios, C. Camara,Analyst 1988,113, 1109.
M. A. Palacios, M. Gomez, C. Camara,Talanta 1990,37, 719.
M. Gomez, I. Rodriguez, C. Camara, M. A. Palacios,Analyst 1990,115, 553.
M. Gomez, M. A. Palacios, C. Camara,Analusis 1991,19, 2.
Z. Grobenski, R. Lehmann, R. Tamm, B. Weluz,Mikrochim. Acta 1982,1, 115.
H. T. Delves,At. Spectrosc. 1981,2, 65.
D. K. Eaton, J. A. Holcombe,Anal. Chem. 1983,55, 946.
S. G. Salmon, J. A. Holcombe,Anal. Chem. 1982,54, 630.
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Cobo, G., Gomez, M., Camara, C. et al. Determination of fluoride in complex liquid matrices by electrothermal atomic absorption spectrometry with in-furnace oxygen-assisted ashing. Mikrochim Acta 110, 103–110 (1993). https://doi.org/10.1007/BF01243991
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DOI: https://doi.org/10.1007/BF01243991