Patent ID: 7699990
Filing Date: 2010-04-20
Classification: G01N,Y10T

Abstract:
1. A method of operating a separation analyzer, the method comprising: providing a flow switching valve having first and second sampling loops for temporarily storing solutions; transferring to said flow switching valve, with a first pump, a liquid to be detected while changing mixing ratios of a plurality of solutions comprising the liquid to be detected; transferring to said flow switching valve, with a second pump, a transfer solution; and alternating said flow switching valve between a first state and a second state, wherein in said first state said second pump pushes solution from the second sample loop toward a sample detector while the liquid from the first pump is transferred to the first sampling loop, and in said second state said second pump pushes solution from the first sampling loop toward the sample detector while the liquid from the first pump is transferred to the second sampling loop.