Fluorine contents of different types of wines produced in Turkey were determined by the molecular
absorption of calcium mono-fluoride (CaF) using a high resolution continuum source graphite furnace
atomic absorption spectrometer (HR-CS GFAAS). For this purpose, 2000 mg mL1 of calcium was coinjected
to the graphite furnace with diluted wine samples. In order to increase the sensitivities and
reduce the limit of detection (LOD) and characteristic mass, summation of the absorbances for CaF at
606.440 nm and 606.231 nm were evaluated. Graphite furnace program was optimized for best accuracy
and 700 C for pyrolysis, 2250 C for molecule forming temperature was selected. Quantification was
made by linear calibration, standard addition technique by HR-CS-AAS and the results were also
compared with ISE method and no significant difference was found. The range of F contents for 20 red
and white wine samples varies between LOD and 0.38 mg L1
. The limit of detection and characteristic
mass of the method were 0.18 and 0.058 ng of F, respectively which are appropriate to detect the fluorine
concentrations in most of the wine samples. The method is simple, fast, accurate and sensitive.