News

Automated Pyrolysis Option

The PYRO module for the GERSTEL Thermal Desorption Unit (TDU) is available for automated pyrolysis of up to 14, 98, or 196 samples in combination with the GERSTEL MultiPurpose Sampler (MPS). PYRO enables pyrolysis of solids and liquids at up to 1000 °C.
PYRO performs the following techniques: Standard pulsed pyrolysis; fractionated pyrolysis; sequential pyrolysis; solvent venting combined with pyrolysis; Evolved Gas Analysis (EGA); derivatization combined with pyrolysis. Thermal desorption prior to pyrolysis enables the determination of volatile compounds and provides a clean pyrolysis chromatogram that is easy to interpret. Solvent venting can remove water prior to pyrolysis.
PYRO is controlled using the MAESTRO software or integrated with the GC/MS software.

Multi-Position Evaporation Station (mVAP)

A six-position evaporation station (mVAP) is available for the GERSTEL MultiPurpose Sampler (MPS). Samples are concentrated at user defined temperature and vacuum, enabling significantly improved limits of detection. The MPS automatically loads samples placed in 2 mL, 4 mL or 10 mL vials. Solvent exchange to a GC- or HPLC compatible solvent can be performed for improved chromatography. mVAP can be used in combination with SPE, Dispersive SPE (DPX) or liquid/liquid extraction to evaporate solvent from extracts combined with injection to GC/MS or LC/MS. Every step is controlled by mouse-click using the MAESTRO PrepBuilder. Just one method and/or one sequence table is needed for the entire process including GC/MS or LC/MS analysis.

Automated Filtration Option

The Filtration option for the GERSTEL MultiPurpose Sampler (MPS) enables efficient automated clean-up of up to 98 samples or extracts using standard filters with Luer® fittings. Filtration can be combined with other sample preparation steps and/ or with introduction to an LC-MS/MS- or GC/MS system.
Without adding to the laboratory workload, filtration can significantly improve the reliability of the analysis and of the analysis system. Depending on the filter size used, up to 98 filters can be placed in the MPS tray. Liquid transfer is performed with exact control of flow and volume for highly reproducible results. MAESTRO software offers simple and efficient control by mouseclick, requiring no macro programming.

Vortex / Shaker option for the MPS

The Vortex and shaker option (mVORX) for the GERSTEL MultiPurpose Sampler (MPS) performs vortexing and agitation at up to 3,000 rpm, speeding up sample preparation steps such as liquid-liquid extraction, dissolution, and homogenization. The mVORX performs efficient simultaneous vortex mixing of up to eight samples depending on the vial size. The MPS automatically loads samples placed in 2, 4 or 10 mL vials. The mVORX orbital motion is provided by a precise linear, direct drive motor for finely tuned operation. Mixing movements are restricted to the horizontal plane, allowing even the most sensitive samples to be mixed efficiently without over-agitation or wetting of the vial cap. Automated operation under MAESTRO software control enables reliable and flexible sample processing, the PrepAhead functionality ensures best possible productivity and throughput.

New connection technology for multi-dimensional GC/MS

The GERSTEL μFlowManager provides easy and rugged column connections for multi-dimensional GC/MS analysis of complex samples. The system is based on deactivated low thermal mass connectors. Metal ferrules enable easy set-up, ultra-low air background and best GC/MS system stability. Using EPC, either pressure or flow programming can be used. MAESTRO software and set-up tools enable easy method development and fully optimized separation. System features:

Controller C200

The compact GERSTEL C200 controller offers heating and cooling control including temperature ramps for GERSTEL modules such as the Cooled Injection System (CIS) PTV-type GC inlet, the Cryo Trap System (CTS) for multidimensional GC, the Thermal Extractor (TE), as well as the market leading GERSTEL Olfactory Detection Port (ODP). Multiple cycles with temperature ramps can be performed for highly efficient conditioning of up to 50 GERSTEL Twisters or up to 10 adsorbent tubes in the GERSTEL Tube Conditioner (TC). The C200 can be operated standalone using the scroll wheel at the front of the controller or through the GERSTEL MAESTRO software. The system status is shown in the display and is clearly indicated through the colored light in the scroll wheel.

Online SPE system: SPExos

GERSTEL SPExos performs online SPE with automated cartridge exchange. SPExos uses relatively small cartridges with around 50 mg of sorbent. Cartridges are inserted directly into the HPLC mobile phase for elution resulting in quantitative transfer of analytes to the HPLC column. Much smaller sample amounts are thus needed to reach required detection limits and much less solvent is needed, for example, for analyte elution, increasing the concentration factor and reducing both cost and environmental impact.
In combination with the GERSTEL MPS and MAESTRO software, liquid sample preparation, clean-up and LC-MS/MS analysis can be performed in one integrated system operated with one integrated sequence table. The Prep-Ahead functionality with multi-sample overlap ensures maximum efficiency and throughput for the complete system, including the LC-MS/ MS.