Abstract
AbstractA comparison of results obtained by the traditional extraction method for determination of oil content in rapeseed and those achieved by a commercial nuclear magnetic resonance (NMR) spectrometer revealed a very high correlation (r=0.987) between the results. The advantage of the NMR method, in relation to the extraction method, is the shorter time needed for a test: the result will be available in the course of a few minutes. Moreover, no inflammable chemicals are needed for the test, and the apparatus does not take up much room. On the other hand the NMR spectrometer must be placed in a room with a constant temperature, the seed samples must have the same temperature as the adjustment samples, and the oil content must be determined on dry matter basis.
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