Shimadzu OPTIC-4 Multimode Inlet for Gas Chromatograph Mass Spectrometers

Friday, 18 May, 2012 | Supplied by: Shimadzu Scientific Instruments (Oceania) Pty Ltd

Shimadzu UK has released the OPTIC-4 Multimode Inlet for Gas Chromatograph Mass Spectrometers to address the growing R&D demand for a single GC-MS system that can accommodate multiple analysis tasks. The introduction of the multimode inlet device is targeted at chemical manufacturers, food producers and university research departments.

Equipped with injection modes capable of accommodating a wide range of sample forms, the product supports split/splitless injection modes. A further five inlet modes can also be accommodated with the single inlet. The additional modes include: large volume injection mode; inlet derivatisation mode; thermal desorption mode; thermal extraction mode; thermal decomposition (pyrolysis) mode and DMI (Difficult Matrix Introduction) mode.

Using a direct heating method, the device is able to achieve a maximum heating speed of 60°C/sec, which enables chromatogram peak spread in thermal decomposition analysis to be suppressed to a minimum. Equipping a system with an optional cryotrap will sharpen chromatogram peaks and improve separation and sensitivity. The high heating speed means analysis is possible, while the spread of sample bands trapped by the cryo unit can be suppressed to a minimum.

Compound adsorption, due to cold spots, can be minimised because the product does not use switching valves or transfer lines, which is suitable for analysing compounds with a high boiling point, as well as adsorptive and degradable compounds. The device can also be used as an inlet for large volume injection analysis. The improved sensitivity, due to large volume injection, enables simple sample concentration.

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