Simultaneous injection of the same sample onto separate columns

Two position valve application – 10 port valve
(Non-Java)

In Position A, sample fills the two loops in series. In Position B, the sample is simultaneously injected into two separate flow systems. A single autosampler used with this flowpath can automate two analytical procedures for the same sample.

In an important non-chromatographic application, the roles of carrier and sample are reversed, permitting two different quantities of two different materials to be dispensed together, as in automatic dilution.

Further reference

More applications with two position valves
Valco injectors and valves
Cheminert injectors and valves