Automated method for sample distribution and isolation of an analyte with a solid support

A method for isolating analytes that may be present in fluid samples in an automated system, the method comprising the automated steps of:

• a) loading samples on the automated system with identifiers, or identifying loaded samples according to sample type and analytical test to be performed;
• b) transferring instructions from a control unit to a first and a second pipetting device comprising allocation of individual samples to a two-dimensional n×m arrangement of individual tests in a processing plate;
• c) transferring said fluid samples from at least two sample vessels to a at least two vessels of said processing plate with a first pipetting device comprising at least two pipetting units in linear arrangement, wherein said pipetting units are coupled to pipette tips;
• d) combining together a solid support material and said fluid sample in a well of said processing plate for a period of time and under conditions sufficient to permit said analyte to be immobilized on the solid support material;
• e) isolating the solid support material from other material present in the fluid sample in a separation station;
• and
• f) purifying the analyte in the separation station by separating the fluid sample from the solid support material and washing the materials one or more times with a wash buffer, wherein said solid support material and said washing buffer are mixed by aspirating and dispensing with a second pipetting device, said second pipetting device comprising pipetting units in a two-dimensional n×m arrangement for coupling to pipette tips;
• wherein said pipette tips used in step c) are re-used in step f).