Patent ID: 8679452
Filing Date: 2014-03-25
Classification: C01B,C07B

Abstract:
1. A method for labeling synthesis, comprising: (a) providing a reagent volume to be labeled in a reaction chamber, (b) providing carbon-isotope dioxide in a carrier gas, (c) concentrating carbon-isotope dioxide by trapping in a carbon dioxide trapping device to generate a carbon-isotope dioxide enriched gas-mixture, wherein the trapping device has an outlet which is closed and a high pressure compared to the reaction chamber is built up in the trapping device, (d) introducing and confining the carbon-isotope dioxide enriched gas-mixture into said reaction chamber via a gas inlet, said reaction chamber has an outlet which is closed, (e) waiting for a predetermined time while the labeling synthesis occur, and (f) collecting the labeled product from the reaction chamber.