ST flowpath selectors are used for multi-trap, multi-column, or multi-sample operations. A typical application, shown here, is the collection of fractions at timed intervals for analysis at a later time. In step 1, the 6 port valve is in the collection/trapping mode, with loop 4 selected for filling. In step 2, the 6 port valve is in the analysis/desorption mode, with the contents of loop 4 going to the column.
Valves can be ordered with matched loops already installed. Both valves can be supplied with pneumatic or electric actuators to automate these functions.
Step 1
Loop 4 selected for filling, 6 port valve in collection/trapping mode
Step 2
Contents of loop 4 go to the column, 6 port valve in analysis/desorption mode
