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Autor:
B.P. Datta
Publikováno v:
International Journal of Mass Spectrometry. 237:135-148
The relationships between experimental-cum-input errors (∂Ri's) and the errors (∂Em's) of solutions (Em's), corresponding to a somewhat generalized and representative experimental case of any given three simultaneous equations (fi({Em}) = Ri (i,
Autor:
B.P. Datta
Publikováno v:
Rapid Communications in Mass Spectrometry. 15:1346-1363
The computations involved in the CO(2)(+) ion beam method of determining simultaneously a pair of constituent elemental isotopic abundance ratios P and Q (viz. (13)C/(12)C and (17)O/(16)O, or (13)C/(12)C and (18)O/(16)O, or (17)O/(16)O and (18)O/(16)
Autor:
B.P. Datta
Publikováno v:
Rapid Communications in Mass Spectrometry. 15:2096-2109
The simultaneous determination of the 17O/16O abundance ratio (Y) and 18O/16O ratio (Z) as is carried out by solving a set of equations: where Ri's are the measured abundance ratios of chosen pairs (say, j and k) of isotopic ions. The measured ratios
Autor:
B.P. Datta
Publikováno v:
Rapid Communications in Mass Spectrometry. 14:706-718
Recently, we have shown how the errors delta(j) and delta(k), that occur when measuring the two different isotopic molecular abundance ratios required for analysis, are transformed into the actual errors of elemental isotopic analysis, (deltaEi/Ei)'s
Autor:
B.P. Datta
Publikováno v:
Rapid Communications in Mass Spectrometry. 14:696-705
The simultaneous isotopic analysis of lithium and boron by the Li2BO2+ ion beam method involves measurements of two different molecular abundance ratios (say, Rj+/-delta(j) and Rk+/-delta(k)), and subsequently extensive calculations to arrive at the
Autor:
B.P. Datta
Publikováno v:
Rapid Communications in Mass Spectrometry. 14:1571-1585
In the Li(2)BO(2)(+) ion beam method of isotopic analysis of elements, the (two) analyte isotopic abundance ratios (E( i)'s) are determined by solving a set of (two) simultaneous equations: f( i)(E( i)'s) = R( i) +/- delta( i), (i = 1, 2) where the R
Autor:
B.P. Datta
Publikováno v:
Rapid Communications in Mass Spectrometry. 11:1767-1774
Autor:
B.P. Datta
Publikováno v:
Spectrochimica Acta Part B: Atomic Spectroscopy. 52:471-485
Spark source mass spectrometric investigation has been carried out on a thoria-graphite matrix in order to assess the feasibility of characterizing the refractory nuclear material thoria (ThO2) in respect of trace elemental constituents. The sensitiv
Autor:
B.P. Datta
Publikováno v:
International Journal of Mass Spectrometry and Ion Processes. 161:7-10