Column Splitters

Splitting in Chromatography can best be defined through Column splitting and Detector splitting.

Column Splitting

Column splitting facilitates concurrent chromatograms to be produced from the same sample (using columns of different selectivity). It is the technique of diverting fractions of the sample vapor eluting from the inlet to more than one column and associated detector. The carrier gas flow rate through each column and into each detector is defined by the length and diameter of each column and the applied common mid - point pressure. In most instances it is convenient to use columns of the same length and internal diameter so that optimum flow rates are easy to establish for each column.

Detector Splitting

Detector splitting is best used for complex samples that contain analytes with functional groups that can be selectively monitored by different detectors. The splitting enables simultaneous chromatograms to be produced by the same column and injection. Detector splitting can be defined as diverting fractions of the column effluent to more than one detector. This technique has only one column that is connected between the injector and the splitting device. The split ratio (relative amount of the sample reaching a detector) is defined by the length and diameter of the restrictor tubing used, and is proportional to the flow rate down the restrictor. The range of split ratios can be extended by using a midpoint carrier gas supply.

SGE manufactures several styles splitters including inlet and outlet splitters. All of SGE’s splitters have an inert flow path, irrespective of whether they are glass lined or stainless steel.

GC 3 Port Splitter
GC 4 Port Splitter

GC 3 Port Splitter SilFlow®

SGE's SilFlow® delivers a flexible chromatography solution using planar microchannel technology. SilFlow is an innovation in design and fabrication resulting in a highly efficient and reliable micro fluidic platform that improves your GC connectivity to enable maximum chromatography performance.

Features and Benefits
  • Chemically inert.
  • Low dead volume.
  • Superb operational stability.
  • Easy to install.
  • Leak free.

Recommended Applications
  • Column splitting.
  • Detector splitting.
  • Backflush.
  • Anywhere a tee - piece has traditionally been used.

GC 4 Port Splitter SilFlow®

SGE's SilFlow® delivers a flexible chromatography solution using planar microchannel technology. SilFlow is an innovation in design and fabrication resulting in a highly efficient and reliable micro fluidic platform that improves your GC connectivity to enable maximum chromatography performance.

Features and Benefits
  • Chemically inert.
  • Low dead volume.
  • Superb operational stability.
  • Easy to install.
  • Leak free.

Recommended Applications
  • Backflushing.
  • Flexibility on column splitting.
  • Detector splitting.
  • Acts as a three port by blocking off one port.