Abstract: The present invention relates to a process for conducting real-time PCR, and to a device for conducting the method of the present invention. The invention is especially suited for the simultaneous identification and quantification of nucleic acids present in a sample, e.g. a biological sample. Further, this invention describes a method for simultaneous quantitative analysis of multiple nucleic acid sequences in a single compartment by using an integrated nucleic acid microarray combined with a highly surface-specific readout device. The invention relates to a device wherein a surface which is either part of the chamber surface or a surface that is created in the reaction chamber, such as bead surface, is coated with capture probes and in the same chamber, a PCR reaction takes place.