This GC splitter midpoint pressure calculator models a three-column GC splitter configuration where one inlet column feeds two outlet columns via a shared midpoint junction.
It calculates individual outlet column flows and flow ratios based on the midpoint pressure balance.
GC Splitter Midpoint Pressure Calculator Interface
Connection Diagram
What inputs are required ?
- Dimensions and temperature of capillary column 1, 2 and 3
- Column 1 inlet pressure
- Column 2 and 3 outlet pressure
- Splitter midpoint pressure
- Carrier gas
Output of GC Splitter Midpoint Pressure Calculator
- Outlet flow of column 1, 2 and 3
- Splitter midpoint flow
- Split flow ratio between column 2 and 3
- Inlet-to-split flow ratio
Before You Go
Want to understand how this calculator works behind the scenes?
The full article with explanation will be published soon at GC Hardware.
Before you go, you may also find useful:
- How the calculator affects split accuracy and detector response
- Differences between midpoint-controlled splitters and outlet-controlled splitters
- Other GC calculators for series columns and midpoint supply configurations
Understanding midpoint pressure behavior helps prevent uneven splits, unstable flows, and detector imbalance.
Browse related calculators below:
- GC Column Splitter Flow Calculator (3 Capillary Columns)
- GC Column Combiner Flow Calculator (3 Columns)
- GC Combiner Midpoint Pressure Calculator – Three Columns
If your system uses a different column connection — such as a single column, two-column series, mid-point pressure supply, splitters, or combiners — explore the other GC column flow calculators at Free GC Calculators for configuration-specific flow and pressure calculations.