Optic-4 Inlet for Gas Chromatography

Optic-4 Inlet for Gas Chromatography Gas Chromatography

The most powerful Multimode inlet for GC and GCMS systems

The 4th generation of the OPTIC multimode injection system is a versatile accessory for Shimadzu GC and GCMS instruments that extends the application range and detection limits.

Wider application range for gas chromatography
In addition to the standard sampling modes, the programmable OPTIC-4 can be operated as a Large Volume injector, Pyrolysis or Thermal Desorption introduction system. DMI (Difficult Matrix Introduction) is another option where a µ volume inlet liner is filled with a dirty or complex sample. Then the liner is introduced into the OPTIC-4. As it heats, compounds reach their boiling point and move from the liner cup and on to the GC column. The high molecular weight and non-volatile compounds remain in the liner cup and thus do not contaminate the inlet system or column.

The patented low thermal mass design together with the direct resistive heating provides a linear temperature range up to 600°C at rates as high as 60 °C/sec and opens the possibility to apply the OPTIC-4 to this wide range of applications. In combination with the AOC-5000 plus auto sampler, sample introduction can be fully automated with an automatic liner exchanger (LINEX). In addition, a variety of different liners supports the huge range of applications.

Improved detection limits
By using the OPTIC-4 Injector as a cool on-column injection system, compounds that normally degrade in hot injectors, e.g. thermal labile pesticides, can be analyzed without difficulties. Analysis of low boiling point compounds are performed with precise and reproducible results. The temperature range of the OPTIC-4 is +10 °C above RT to 600 °C (-180 °C or -50 °C to 600 °C by adding the injector cooling option with direct LN2 or CO2 cooling, respectively).

Large-volume injections improve the detection limits and can be used in all application areas where sensitivity is crucial, e.g. in environmental or food analysis. The unique solvent monitor enables easy method development for large-volume injections.

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