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

被引:7
作者
Chaudhri, M. A.
Nadeem, Q.
Chaudhri, M. N.
Jabbar, Q.
机构
[1] Pakistan Council Sci & Ind Res, Lahore, Pakistan
[2] Klinikum Nurnberg Sud, Inst Med Phys, D-90471 Nurnberg, Germany
[3] Lahore Coll Women, Dept Phys, Lahore, Pakistan
关键词
Fluorine;
D O I
10.1007/s10967-007-0328-5
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
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.
引用
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页码:697 / 700
页数:4
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