SAMPLING METHOD OF BIOORGANIC SAMPLES Russian patent published in 2017 - IPC G01N1/28 B01D59/44 H01J49/00 

FIELD: biotechnology.

SUBSTANCE: invention relates to a bio sample preparation methods, including medical samples for the determination of isotopic ratios are ¹⁴C/¹²C and ¹⁴C/¹³C by accelerator mass spectrometer (AMS). The process is carried out using liquid phase oxidation system comprising a hydrogen peroxide decomposition catalyst as an oxidizer, and hydrogen peroxide. Exuding from the oxidation of carbon dioxide, if necessary, expose an additional cleaning and drying by successive operations: CO₂ adsorption preconcentration, CO₂ desorption with sorbent during heating, freezing of carbon dioxide and degassing followed by defrost of CO₂ and the direction of purified gas for analysis on accelerator mass spectrometer basis. If necessary, the purified carbon dioxide is subjected to catalytic graphitization, followed by pressing and obtain carbon tablets.

EFFECT: obtaining of solid or gaseous sample for analysis at the accelerator mass spectrometer.

4 cl, 7 ex, 1 dwg