GERSTEL Cooled Injection Systems - CIS

The GERSTEL cooled injection inlets are the most widely used universal (PTV) inlets in the world. Designed to obtain the best performance from your capillary column, the CIS has unsurpassed heating and cooling options, patented septumless sampling head and electronic pressure control. Capillary gas chromatographic analysis is now more versatile, reproducible and has lower detection limits than ever before.

The GERSTEL CIS has two main functions:

• As an universal inlet for all injection techniques: split, splitless, on-column and large-volume injection up to 1000 uL.
• A cryotrap when used with sample introduction techniques such as thermal desorption, headspace, stir bar sorptive extraction SBSE (Twister).

There are three different versions of the CIS:

• CIS 4 for Agilent Technologies 6850/6890/7890 GCs
• CIS 6 for high temperature (650ºC) applications using Agilent Technologies 6850/6890/7890 GCs
• CIS 3 for HP 5890 GC and as well as all other types of GCs

Main Features and Advantages

• Universal inlet - Seven modes of injection
• Closest to ideal sample introduction system available
• No septum problems due to septumless sampling head (SLH)
• Septumles sampling head ideal for SPME analysis
• Electronic pressure control (EPC)
• Lowers detection limits
• Eliminates thermal discrimination
• Reduces decomposition of thermally labile compounds
• Expands boiling point range and can be used for pyrolysis (CIS 6)
• Can be converted to on-column inlet
• Can be upgraded to provide automated liner exchange (ALEX)
• GERSTEL Patented Peltier or Cryostatic cooling
• LN2 or CO2 cooling
• Can be used as an extremley efficient cold trap for Headspace, Twister and Thermal Desorption Systems

Applications