G - Physics – 01 – N
Patent
G - Physics
01
N
324/1
G01N 24/08 (2006.01)
Patent
CA 1198163
METHOD OF QUANTITATIVE ANALYSIS OF SUBSTANCES AND NUCLEAR-RESONANT QUANTITATIVE ANALYZER THEREFOR Abstract A method of quantitative analysis of substances based on nuclear magnetic resonance comprises the steps of weighing a sample of substance to be analyzed, obtaining therefrom and accumulating nuclear magnetic resonance signals during n measuring cycles, computing a mean value of the nuclear mag- netic resonance signals, and determining percentage of com- ponents in the sample being analyzed with regard to its mass and the mean value of the nuclear magnetic resonance signals. The mean value of the accumulated signals and its standard deviation are computed as the accumulation occurs during each of the n measuring cycles, the subsequent step being subtraction of the standard deviation form the per- missible limiting standard deviation value whereupon the accumulation is topped during the ?ith cycle in which a difference between said magnitudes is a positive value. A nuclear-resonant quantitative analyzer for accomplishing the aforesaid method comprises a magnetic system, a nuclear magnetic resonance signal pick-up arranged in its gap, an amplifier, a selector and an analog-to-digital converter, which are connected to the output of said pick-up, a video- -pulse generator connected to the input thereof, and a radio- -pulse generator. The analyzer also comprises an automatic sample weighing unit composed of such series-connected compo- nents as a weight-to-frequency converter, a load-receiving platform thereof being inserted in the nuclear magnetic reso- nance pick-up, and a frequency-to-code converter, a data swapping unit, a processor, a control unit, a pro- gramming unit and a data output unit.
440931
Aspiotis Evgeny K.
Danshin Boris V.
Malakhov Evgeny I.
Sidorov Anatoly S.
Sokolov Vladimir A.
Ogilvy Renault
Vsesojuzny Nauchno-Issledovatelsky Institut Maslichnykh Kultur I
Vsesojuzny Proektno-Konstruktorsky I. Nauchno- Issledovatelsky I
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