Distribution and forms of fluorine in whole blood of human male.

Distribution and absolute concentration of three kinds of fluoride/fluorine, i.e., free ionic, ionizable, and organic fluorine, in human whole blood and serum were determined. The method is based on low temperature oxygen plasma ashing, acid hydrolysis, gas chromatography using chlorotrimethylsilane, and fluoride ion-specific electrode. A large part (40%) of the total F is distributed in clot of the whole blood and 74% of the total F is in the form of organic fluorine.