| abstract |
A method of performing a chemical or biochemical reaction that requires multiple temperature steps involves placing the reagents required for said reaction in a reaction vessel (1, 6, 71) equipped with a heating means comprising an electrically conductive polymeric element (2) that emits heat as an electric current; feeding a stream to said polymeric element to heat the reagents to the first desired temperature; and subsequently adjusting the current to create the subsequent temperature stages required for the reaction. The method for carrying out the method comprises at least one reaction vessel (1, 6, 71), a heating means comprising an electrically conductive polymer element (2) arranged to heat the reaction vessel (1, 6, 71) and a control means (10, 74) for controlling supplying electric current to the heating means, wherein the control means (10, 74) is set to supply electric current providing a sequence of different reaction temperatures of the reactants maintained in the reaction vessel (1, 6, 71), and the heating means being connectable to the electric source (5). , 8, 73) via the control means (10,74). |