SIMULATOR OF THE SIGNALS OF FREE PRECESSION OF NUCLEAR MAGNETIC RESONANCE AND SPIN ECHO OF OIL PROTONS WITH VARIOUS MASS FRACTIONS OF LINOLENIC ACID IN LINSEEDS Russian patent published in 2019 - IPC G01N24/08 

FIELD: measurement.

SUBSTANCE: invention relates to the field of measurement equipment, namely to means of calibrating pulse NMR-spectrometers, and can be used to determine content of linolenic acid in linseed oil. Invention is a simulator of free precession signals of nuclear magnetic resonance and spin echo of oil protons with different mass fraction of linolenic acid in flax seeds, which is a first organosilicon liquid or a mixture of organosilicon liquids having spin-spin relaxation time of protons in different ranges, characterized in that the first liquid has a spin-spin relaxation time of protons in range of 240±10 ms, and second is in range of 200±10 ms at their following ratio, wt. %: first organosilicon liquid 14.3–100.0; second organosilicon liquid is 0–85.7. Claimed ratios of said organosilicon fluids enable to simulate spin envelope signals of protons of linseed oil with weight ratio of linolenic acid in range from 4 to 72 %.

EFFECT: flax seed oil simulators can be used in making reference measures for calibrating and calibrating NMR analyzers of oil content and moisture of seeds.

1 cl, 1 tbl, 1 ex