Excellent performance and great flexibility are just two features of the OPTIC 3, a fully programmable injector for gas chromatography. It’s simple but highly effective design allows a range of injection modes to be selected and optimized to suit a sample’s characteristics.

• ·     Large, up to 100 ml at-once volume sampling

• ·     Cold as well as hot split/splitless injections

• ·     Direct (in-injector) thermal desorption for any type of sample

• ·     Difficult Matrix Introduction (DMI) -  handling large volumes of dirty sample extracts with non-volatile matrix

• ·     Optional automated liner exchange

• ·     Optional integrated cryogenic trap control

• ·     Discrimination free to C₁₀₀

• ·     Pyrolysis up 600 °C with ramp rate up to 30 °C/sec

• ·     Compatible with most GC’s and autosamplers

 

One injector, more analytical options

Large volume injection saves times, improves performance

Injecting volumes up to 100 µl bring real benefits. Big savings may be made in sample preparation time and costs. Besides, chromatographic performance is improved with better quantitation and lower limits of detection.

 

Direct (in-injector) thermal desorption for solid and gaseous samples

Unique Optic 3 design allows direct (in-injector) thermal desorption into the capillary column, important when compounds are highly active or of high molecular weight. Direct thermal desorption of solid samples is possible, or liners may be packed with a selection of adsorbents and used to sample airborne organic compounds.

 

Dirty samples analysis with Difficult Matrix Introduction (DMI)

DMI enables sample introduction into GC column to be performed from a disposable container (microvial) placed inside the injection liner.  This has a great advantage over traditional injection because large volumes (up to 30 µl) of dirty sample extracts or even row samples can be introduced directly into GC or GC-MS. Using the principle of selective exclusion, the volatiles and semi-volatiles are transferred onto the column, while non-volatile residues are retained in the microvial, which is disposed after analysis.

 

Automated liner exchange (LINEX)  

LINEX offers the possibility to automatically exchange the liners between the OPTIC injector and the liner tray after one or few analytical runs. This is required when analyzing dirty liquid extracts or solid samples. Every time, on the completion of the chromatographic run the injection liner is changed automatically to exchange the sample and to avoid the possible build-up of involatile matrix components in the GC system.

 

Integrated cryogenic trap control 

Peak broadening in gas chromatography is sometimes a result of a sample introduction technique that fails to deposit volatiles components in a narrow band at the head of the capillary column. OPTIC-3 cryogenic cold trap allows solving the problems by re-focusing the sample in a narrow band by cooling a short section of the column. The OPTIC 3 trap is designed for rapid cooling and efficient extremely fast (up to 50 °C/sec) heating, ensuring excellent reproducibility and optimum peak shape.

 

High temperature operation extends the application

OPTIC 3 can be programmed up to 600 °C, extending discrimination free injection up to C₁₀₀ compounds and beyond. Such higher temperatures have other advantages such as reducing carryover between runs, or to enable in-injector derivatizations, reaction studies and sample pyrolysis to be performed.

 

OPTIC 3 – a choice of system 

A number of versions are available, comprising an injector head, free standing control unit and different options extending capability of the system. The standard OPTIC 3-PTV is designed to use the gas controls resident in the host GC or GC-MS.

OPTIC 3-S includes electronic carrier gas controls allowing either head pressure or column flow to be programmed very accurately.

OPTIC 3-SC is an OPTIC 3-S equipped with the cryogenic trap. The trap control is seamlessly integrated into OPTIC 3 hardware and software.

OPTIC 3-D includes an extra channel for flow programmed control to provide a multi-dimensional capability for the most complex analysis.

OPTIC 3-DC is an OPTIC 3-D equipped with the cryogenic trap and its control.

In addition, OPTIC 3 can be equipped with an injector compatible with the industry standard ¼” thermal desorption tubes.

Optional facilities and accessories are available for all models and are listed with the specification data.

 

OPTIC 3 sampling flexibility

OPTIC 3 offers several operating modes, including in-injector thermal desorption, and large volume adding extra flexibility to any gas chromatograph.

The elegant but simple injector design is readily compatible with most GCs. A thin stainless steel body is ohmically heated to provide fast linear temperature programming, up to 600 °C at rates as high as 30 °C/sec.

A principal feature of OPTIC 3 is its large capacity quartz or glass liners which can be filled with appropriate packing to receive or trap samples.

 

Large Volume Injector Optic 3  ¦  Leak Detector LD-229

 

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