METHOD OF DETERMINING CONTENT OF OIL IN PHOSPHOLIPID CONCENTRATE (LECITHIN) Russian patent published in 2012 - IPC G01N33/02 

FIELD: chemistry.

SUBSTANCE: in the method involves collection of a phospholipid concentrate sample, preparation of the phospholipid concentrate sample for analysis and calculating content of oil in the phospholipid concentrate using a formula, the collected phospholipid concentrate sample has mass of (8.00±0.02) g, the phospholipid concentrate sample is prepared via temperature control at (23±0.2)°C for 1 hour, after which the phospholipid concentrate sample is put into the sensor of a pulsed NMR analyser; the amplitude of nuclear magnetic relaxation (NMR) signals of protons of triacyl glycerines of the first and second components of the oil contained in the phospholipid concentrate in arbitrary units is measured; the sum of amplitude values of NMR signals of protons of triacyl glycerines of the first and second components of oil contained in the phospholipid concentrate is determined; and content of oil in the phospholipid concentrate (lecithin) in percentages (M) is calculated using the formula: M=0.0583(A₁+A₂)+17.91.

EFFECT: faster and safer analysis.

3 ex, 1 dwg