| abstract |
The assay system may perform operations on an analyte that may be combined with a number of reagents prior to introduction into the flow cell. The device may include a volume into which the reagent to be combined with the analyte is aspirated one by one. The volume may be formed as a serpentine channel in a valve manifold associated with a sipper for aspirating the reagent. The reagents may be mixed by circulating a pump to move the reagents within the mixing volume or channel. To this end, the reagent may be drawn from the receptacle into the volume or channel and then discharged back into the receptacle, and this process may be performed repeatedly to improve mixing. |