Application of prompt activation analysis in the determination of fluorine in tea, in international geochemical standards, bones and teeth of experimental animals

作者：Chaudhri M A; Nadeem Q; Chaudhri M N; Jabbar Q

来源：Journal of Radioanalytical and Nuclear Chemistry, 2007, 271(3): 697-700.

DOI：10.1007/s10967-007-0328-5

By making use of the F-19(p, alpha gamma) O-16 reaction the F-concentrations of different varieties of tea leaves, of some international geochemical reference materials, and of the bones and teeth of some experimental animals have been determined. The tea leaves from Ceylon ( ordinary), Orange Pekoe ( special Ceylon), China ( ordinary black), Lapsang Souchong ( special smoked Chinese) and Darjeeling ( India) were found to contain 170 ppm, 170 ppm, 120 ppm, 160 ppm and 100 ppm of fluorine, respectively, The F-concentrations of established geochemical reference materials, NIM-D, NIM-N, NIM-P and NIM-S, from the National Institute of Metallurgy, South Africa were determined to be 60 ppm, 120 ppm, 130 ppm and 190 ppm, respectively. The bones of rabbits, who were given fluoridated water, were found to contain much higher amount of fluorine than the bones of the control rabbit. Furthermore, the rabbits who were kept on fluoridated water for 45 days, had almost double the amount of F in their bones than the rabbits who were given fluoridated water for only 15 days. Similarly, the teeth of grown-up monkeys who were given fluoridated water since birth had double the amount of fluorine than those of the control monkey.

• 出版日期2007-3
• 单位河北医科大学