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Isotopic exchange of calcium between labeled sources


, : Isotopic exchange of calcium between labeled sources. FASEB Journal 4(3): A775


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Related references

Weaver C.M.; Heaney R.P., 1991: Isotopic exchange of ingested calcium between labeled sources evidence that ingested calcium does not form common absorptive pool. We studied the extent of salt dissociation during absorption of calcium from sources of differing absorbability by measuring fractional absorption from loads in the range of 200-300 mg in healthy adult women. Sources were labeled both intrinsicall...

Weaver, C.M.; Heaney, R.P., 1991: Isotopic exchange of ingested calcium between labeled sources. Evidence that ingested calcium does not form a common absorptive pool. We studied the extent of salt dissociation during absorption of calcium from sources of differing absorbability by measuring fractional absorption from loads in the range of 200-300 mg in healthy adult women. Sources were labeled both intrinsicall...

Carpenter, P.L.; Lambeth, V.N., 1969: Optimum calcium concentration for determining root cation exchange capacity by isotopic exchange. Ca adsorption on the root exchange sites of some vegetables as determined by the isotopic exchange method (Ca40-Ca46) was a function of its concentration in the external solution surrounding the roots. As the Ca concentration was increased over th...

Graham E.R.; Lopez P.L., 1969: Freezing and thawing as a factor in the release and fixation of soil potassium as demonstrated by isotopic exchange and calcium exchange equilibria. All soils when depleted of K would release K from lattice positions to the labile pool when subjected to freezing and thawing. Ca-saturated soils released more than twice as much K as NH (sub 4) -saturated soils. When 2 to 4 times the original amo...

Bendassolli J.A.; Trivelin P.C.O.; Boaretto A.E.; Moraes Netto B.M., 1990: Preparation of nitrogen 15 labeled uran from nitrogen 15 labeled potassium nitrate and nitrogen 15 labeled ammonium sulfate with independent isotopic labelling of the sources nitrate ammonium and urea. Processes to obtain ammonium nitrate 15N-labeled in the nitric component, starting from potassium 15N-nitrate and using cationic exchange technique, and the same compound labeled in the ammonium component, through distillation of ammonia-15N follo...

Thein-Than; Thane-Toe; Mg-Mg-Thwin; Aung-Than-Batu, 1977: Isotopic exchange in 59Fe labeled rice-based meals. Isotopic exchange between extrinsic 59Fe and native nonhaem Fe was studied with 3 standard Burmese meals, based on rice and labelled with 59Fe, by Sephadex G-50 column chromatography of soluble supernatant of each meal after pepsin digestion and f...

Thein-Than ; Thane-Toe ; Mg-Mg-Thwin ; Aung-Than-Batu, 1977: Isotopic exchange in iron 59 labeled rice based meals. The process of isotopic exchange between extrinsic 59Fe tracer and native nonheme Fe in a rice-based meal was studied by performing Sephadex G-50 column chromatography of soluble supernatant of 59Fe-labeled meal after in vitro pepsin digestion and...

Bem, H.R.imschussel, W1; Jastrzebski, M., 1981: Use of heterogenous isotopic exchange for preparation of 32P and 45Ca phosphorus and calcium isotope labelled calcium phosphate.1. Roczniki naukowe zootechniki = Polish journal of animal science and technology(1): 25-33

Kilbourn M.R.; Subramanian R., 1991: Synthesis of fluorine 18 labeled 1 1 difluoro 2 2 dichloroethylaryl ethers by isotopic exchange. Journal of Labelled Compounds & Radiopharmaceuticals 30: 153

Cacace F.; Speranza M.; Wolf A.P.; Fowler J.S., 1981: Labeling of fluorinated aromatics by isotopic exchange with fluorine 18 labeled fluoride. The efficient and rapid nucleophilic exchange of F by F-18F ion in aromatic rings is reported utilizing Rb-18F-fluoride in DMSO [dimethyl sulfoxide] on model compounds. Specific activities in the 3 .times. 104 Ci/mol region are readily achievable....