Purification unit for increasing the purity of at least one substance taken from a sample liquid, purification apparatus, method for operating a purification

摘要

A purification unit 100 for increasing the purity of at least one substance 124 taken from a sample liquid 122, the unit comprising a sample chamber 104 for receiving the sample liquid 122, a reagent chamber 104 for receiving a reagent 122, a filter device 106 connected or connectable to the reagent chamber 102 via a reagent channel 108 and to the sample chamber 104) via a sample channel 110 for filtering the substance 124 out of the sample liquid 122 using the reagent 120, a holding device 116 for holding an interchangeable collecting vessel 114 beneath an outflow 112 of the filter device 106 to collect the substance 124, and an interface 118 to a pressure controller (302; fig 3) for controlling a transport of liquid within the unit by subjecting the interface 118 to a pneumatic pressure. Ideally, the filter device comprises a mixing chamber for mixing the sample and reagent, and a filter. The unit ideally has a laminate structure with the pneumatic pressure created by depressing a layer. The unit (fig 2) may comprise multiple reagent chambers, sample chambers, filtering devices and waste outlets.