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Fully automated determination of solid fat content by pulsed NMR
Author(s) -
Van Putte K.,
Van Den Enden J.
Publication year - 1974
Publication title -
journal of the american oil chemists' society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.512
H-Index - 117
eISSN - 1558-9331
pISSN - 0003-021X
DOI - 10.1007/bf02633005
Subject(s) - sample (material) , content (measure theory) , analytical chemistry (journal) , voltmeter , relative standard deviation , chemistry , materials science , chromatography , mathematics , physics , detection limit , voltage , mathematical analysis , quantum mechanics
Pulsed NMR has been developed into a quick, accurate fully automated method for the determination of the solid fat content in partially crystallized fats. Accepting a standard deviation of 0.3% solids, the percentage of solids is displayed on a digital voltmeter or printed out 6 sec after placing the sample into the sample holder. To allow for the dead time of the receiver, a correction factor has been introduced giving rise to only small errors (<1%) in the solid fat content. Due to the short measuring time, no temperature control of the sample holder is needed between 10–45 C. Pulsed NMR values can be converted into dilatations and vice versa.