Collection of fractions at timed intervals for later analysis
ST configuration – low pressure
Valco ST multiposition valves 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. Valves can be ordered with matched loops already
installed.
Move your mouse cursor over a Step to "switch" the valve, or go to
a non-animated version.
Step 1:
The 6 port valve in the collection/trapping mode, with Loop 4 selected for filling.
Step 2:
The 6 port valve in the analysis/desorption mode, with the contents of Loop 4 going to the column.
Both valves can be supplied with pneumatic or electric actuators to automate these functions.
Further reference
More applications with multiposition valves
Valco multiposition valves – ST configuration (low pressure)
Actuators
Microelectric
Air
Standard electric
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