Journal of Research of the National Bureau of Standards, Volume 85U.S. Department of Commerce, National Bureau of Standards, 1980 |
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... observed isotopic ratio . The ev amination of a solution of Tl2CO , which had been stored in a borosilicate glass flask for over a year , yielded 205T1 / 203Ţ ratios of 2.380 consistently until it was treated with HF . After this ...
... observed isotopic ratio . The ev amination of a solution of Tl2CO , which had been stored in a borosilicate glass flask for over a year , yielded 205T1 / 203Ţ ratios of 2.380 consistently until it was treated with HF . After this ...
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... observed . This effect was not totally surprising since the silica gel technique for thallium had consistently yielded -atios 0.2 percent lower than the tungsten filament proce- dure . The addition of silica gel to the thallium on the ...
... observed . This effect was not totally surprising since the silica gel technique for thallium had consistently yielded -atios 0.2 percent lower than the tungsten filament proce- dure . The addition of silica gel to the thallium on the ...
Page 8
... observed 2WT1 20rTl ratio of the standard. In addition., between the solutions taken before and after the preparation of the calibration mixes. The mass spectrometer sources were cleaned between the analyses of the 20,T1 and 205TI as a ...
... observed 2WT1 20rTl ratio of the standard. In addition., between the solutions taken before and after the preparation of the calibration mixes. The mass spectrometer sources were cleaned between the analyses of the 20,T1 and 205TI as a ...
Page 4
... observed . Upon reaching 10 V , the signal was reduced to 3 V and al lowed to grow to 7 V which generally required 2 to 3 min . The signal intensity was then reduced to 2.5 V. After 2 min .. the signal intensity was increased to 10 V ...
... observed . Upon reaching 10 V , the signal was reduced to 3 V and al lowed to grow to 7 V which generally required 2 to 3 min . The signal intensity was then reduced to 2.5 V. After 2 min .. the signal intensity was increased to 10 V ...
Page 5
... observed . This effect was not totally surprising since the silica gel technique for thallium had consistently yielded ratios 0.2 percent lower than the tungsten filament proce- dure . The addition of silica gel to the thallium on the ...
... observed . This effect was not totally surprising since the silica gel technique for thallium had consistently yielded ratios 0.2 percent lower than the tungsten filament proce- dure . The addition of silica gel to the thallium on the ...
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acid aerosol alloy aluminum analysis analytical anode atomic atomic weight building Bureau of Standards calculated calibration calorimeter cell Chem chemical chromospheric Conf constant coulometer croconate cryogenic crystal density detector determined developed discussed dosimetry effects electrical electron energy enthalpy of solution equation error evaluation experimental factors Faraday constant figure fire incident frequency function heat hydrogen ionization isotopic J. L. Bryan Key words laboratory laser linear magnetic malononitrile mass materials measurements ment method molal molecular National Bureau NBSIR neutron observed obtained optical Order from NTIS paper parameters particle percent performance Phys physical polymer potentiostat pressure Proc procedure Publ radiation range ratio reaction sample scattering silicon smoke detectors solar Spec spectra spectroscopy structure superconducting surface suspended coil techniques Technology temperature thallium thermal tion uncertainty values voltage weight x-ray
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