METHOD OF AUTHENTICATING MEDICINAL PLANT RAW MATERIAL AND APPARATUS FOR REALISING SAID METHOD Russian patent published in 2012 - IPC G01N30/02 

FIELD: physics.

SUBSTANCE: sample of medicinal plant raw material is held for 40 minutes at 100°C. Components of the equilibrium vapour phase are analysed on a standard column. Interpolation characteristics of sorbates are then determined, and the input of equilibrium vapour phase samples and n-alkanes is synchronised based on a signal from the detector on part of the discharge line of the divider of the sample input unit. The apparatus has a sampling valve, a heated vessel for analysed samples and a sample input unit with a flow divider. The apparatus also has a capillary column, a detector connected through a constant fluidic resistor with the discharge line of the divider, an analysis programming unit and an additional amplifier for the detector signal, which generates a start command for the analysis programming unit.

EFFECT: high accuracy while standardising and improving precision of measurements under repeatability conditions.

2 cl, 1 dwg