Electricity: measuring and testing – Particle precession resonance – Using a nuclear resonance spectrometer system
Reexamination Certificate
2006-03-07
2006-03-07
Shrivastav, Brij (Department: 2859)
Electricity: measuring and testing
Particle precession resonance
Using a nuclear resonance spectrometer system
C324S309000
Reexamination Certificate
active
07009394
ABSTRACT:
A method for estimating the number of nuclei of a preselected isotope in a molecular species starts with an NMR spectrum of a sample containing said molecular species as a predominant substance, said NMR spectrum comprising a plurality of signal peaks corresponding to said nuclei. By applying inclusion and ordering criteria one obtains a set of ordered signal peaks, the integration of which leads to a set of ordered integrals. Nested outer and inner iteration cycles are carried out, wherein for each cycle a trial number of nuclei is assigned to one of said ordered integrals whilst the other ordered integrals are rescaled accordingly and rounded to the next integer value, so as to yield a candidate total number of nuclei. An estimated total number of nuclei is obtained by taking the lowest one from the plurality of candidate total numbers of nuclei that have the highest number of occurrences.
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Cohen & Pontani, Lieberman & Pavane
Hoffmann-La Roche Inc.
Shrivastav Brij
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