METHOD FOR ONLINE INSPECTION OF COMPONENTS AND SEPARATE ORGANIC COMPOUNDS IN MIXTURES THEREOF Russian patent published in 2011 - IPC G01N24/08 

FIELD: physics.

SUBSTANCE: nuclear magnetic resonance (NMR) spin-echo signals are generated in a sample placed in a constant magnetic field using series of radio frequency pulses. The spin-spin relaxation time is measured without illumination and during continuous illumination of the sample with light in the optical and infrared range of the spectrum absorbed by a defined component or organic compound. Relative change of the relaxation time is calculated using the formula ΔT_2i = (T_2i*-T_2i)/T_2i, where T_2i* and T_2i are relaxation time values of the illuminated and non-illuminated sample, and concentration C_i of the i-th component or compound is determined using the formula C_i=k1_i +k2_i(ΔT₂)^k3i, where k1_i-k3_i are fixed coefficients.

EFFECT: simple method of determining crystallographic texture.

6 dwg