منابع مشابه
Incorporation of tritium in grain plants.
Maize and barley plants were grown from seed for a period of 30 days in an enclosure in which the soil water and atmospheric vapour contained equilibrium concentrations of tritiated water. At the end of the experiment the plant water of the maize and the barley contained 95 and 84%, respectively, of the environmental concentration of tritium. The tritium-to-hydrogen ratio in plant dry matter wa...
متن کاملThe effect of hair color on the incorporation of codeine into human hair.
The influence of melanin on the binding of xenobiotics in hair will impact the interpretation of drug concentrations determined by hair testing. The purpose of this study was to determine if codeine, as a model compound of abused drugs, would be incorporated into black, brown, blond, or red hair as a function of melanin concentration. Such data would assist in the interpretation of codeine conc...
متن کاملThe incorporation of cocaine and metabolites into hair: effects of dose and hair pigmentation.
The relationship between xenobiotic concentrations in hair and the degree of systemic xenobiotic exposure is poorly defined. The purpose of this study was to evaluate the effect of dose, time, and pigment on the hair incorporation of cocaine (COC) and its metabolites, benzoylecgonine (BE), ecgonine methyl ester (EME), and norcocaine (NCOC). COC was administered by the i.p. route to male Long-Ev...
متن کاملAnalysis of Tritium Incorporation into Individual Cells by Autoradiography of Squash Preparations
The relation between tritium content of individual cells and grain count obtained in autoradiographs of squashed cells was investigated. The tissues used were root meristems of Tradescantia paludosa and intestinal epithelium of the mouse. The relation between grain count and tritium content is affected by self-absorption which depends on the thickness of the labeled cell. Therefore, squashed pr...
متن کاملTritium incorporation in rats chronically exposed to tritiated food or tritiated water for three successive generations.
Wistar rats have continuously ingested tritiated food (48.1 kBq/g) or tritiated water (37.0 kBq/ml) from three weeks before mating of P0 through delivery of the F3 generation. An analysis of tissues at various ages during treatment shows that: (1) tritium incorporation into tissues of rats life-time exposed to tritiated food was on the average 3.53=0.38 times higher than after similar exposure ...
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ژورنال
عنوان ژورنال: International Journal of Radiation Biology and Related Studies in Physics, Chemistry and Medicine
سال: 1970
ISSN: 0020-7616
DOI: 10.1080/09553007014551391