Device and method for diluting a sample

Details Device and method for diluting a sample Device and method for diluting a sample

2011-08-16

2011-08-16

Warden, Jill (Department: 1773)

Chemical apparatus and process disinfecting, deodorizing, preser

Analyzer, structured indicator, or manipulative laboratory...

Miscellaneous laboratory apparatus and elements, per se

C422S509000, C422S514000, C436S179000, C436S180000, C250S288000

Reexamination Certificate

active

07998434

ABSTRACT:
The present invention provides a pump device50which is usable to dilute a sample52before analysis. A first pump54pumps the sample to a mixing region58where it mixes with a diluent66. A second pump64pumps the diluted sample to the analysis instrument. The flow of the diluent to the mixer is equal to the difference of the flow of the sample to the mixer and the flow of the diluted sample to the instrument. Pumps54and64are independently controllable by a controller unit which is arranged so that data from the instrument can be used to determine the dilution factor of the sample. Thus, the controller can control this dilution factor in real time, upon receipt of such data from the instrument, by change either one of (or both) the pump's flow rate.

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