Product News


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 various vial sizes and 96 well plates. The MPS automatically loads samples placed in 2, 4 and 10 mL vials. A heating option for 96 well microtiter plates is also available. Mixing movements are finely controlled using linear motors and are restricted to the horizontal plane, allowing even the most sensitive samples to be mixed efficiently without over-agitation. Automated operation under MAESTRO software control enables reliable and flexible sample processing, the PrepAhead functionality ensures best possible productivity and throughput.


Automated Pyrolysis Option

The GERSTEL PYRO module for the GERSTEL Thermal Desorption Unit (TDU) is available for automated pyrolysis of 14, 98, or 196 samples in combination with the GERSTEL Multi-Purpose Sampler (MPS). PYRO enables pyrolysis of solids and liquids at up to 1000 °C. PYRO performs the following techniques: Standard pulsed pyrolysis; fractionated 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.


Automated spiking of standard tubes for thermal desorption (TDS/TDU)

The GERSTEL Tube Spiking System (TSS) enables automated generation of standard tubes for Thermal Desorption analysis. Using the GERSTEL MultiPurpose Sampler (MPS), adsorbent tubes are spiked with a user defined volume of liquid standard and the solvent purged with a defined flow of carrier gas as required for method calibration and validation according to international standard methods. Multiple TSS units can be mounted on the MPS for higher throughput.


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 a stand-alone WorkStation in combination with SPE, Dispersive SPE (DPX) or liquid/liquid extraction to evaporate solvent from extracts. Configuration for injection into GC/MS or LC/MS is also possible. 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.


Microwave Prep

The sample preparation portfolio of the GERSTEL MultiPurpose Sampler MPS has been expanded to include advanced microwave technology for accelerated solvent extraction and rapid chemical reactions. A recent application example is automated saponification of fats in food in combination with esterification and FAME analysis by GC. The MPS including microwave can be coupled directly to a GC/MS or LC/MS system or used in stand-alone mode.


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 mouse-click, requiring no macro programming.


More than one Twister needed: Move up to the Twicester

A cooperation between GERSTEL K.K., Tokyo, Japan and the Research Institute for Chromatography (RIC) in Belgium has produced the Multi-Stir Bar Sorptive Extraction (mSBSE) technique. mSBSE has been used successfully for the determination of a variety of flavor compounds in aqueous matrices such as green tea. Key elements of the technique are to use PDMS and EG-Silicone Twisters simultaneously in one sample vial and to desorb these together in the TDU for combined and comprehensive analysis. While the PDMS Twister stirs the sample and extracts non polar to medium polarity analytes, one or more EG-Silicone Twisters are kept stationary at the vial wall by a special holder. The EG-Silicone Twisters extract polar analytes, especially compounds with -OH or -NH functional groups. The Twicester technique enables the determination of a wide range of analytes of different polarities in one extraction step and one GC/MS run.

TDS 3C: Thermal desorption the cooler way

The GERSTEL Thermal Desorption System (TDS) is an accepted standard system used world-wide by leading companies to perform standardized test methods in the automotive, semiconductor and Toy Safety fields and widely in the food, flavor and fragrance and packaging industries among many others. The TDS 3C represents the latest addition to the extensive GERSTEL thermal desorption product line. It can be cooled using a cryostatic cooling device for simpler handling when only moderate trap temperatures are required.


Online SPE system: SPExos

GERSTEL SPEXOS performs online SPE with automated cartridge exchange. SPEXOS uses small cartridges, which are inserted directly into the HPLC mobile phase for elution resulting in quantitative transfer of analytes to the HPLC column. Much smaller sample sizes can be used 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.

GERSTEL MPS roboticpro

MPS roboticpro, the newest member of the GERSTEL MultiPurpose Sampler (MPS) family, is a highly efficient GC/MS autosampler, optimized to hold a significantly larger number of samples for higher throughput. MPS roboticpro provides fast, reliable and highly accurate processing of complex tasks. Tools can be exchanged automatically, enabling automated change between Liquid Injection, Headspace, and SPME. MPS roboticpro is controlled by the GERSTEL MAESTRO software enabling PrepAhead productivity under integrated GC/MS system control. Priority samples can be added at any time without stopping the ongoing analysis sequence. Fast and error-free set-up of the daily analysis sequence is performed using the intelligent sequence editor functions or by importing it directly from your LIMS system.


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 GERSTEL Thermal Extractor (TE 2), 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 10 adsorbent tubes in the GERSTEL Tube Conditioner (TC). The C200 can be operated standalone using the scroll wheel at the front or through the GERSTEL MAESTRO software. The system status is clearly indicated through the colored light in the scroll wheel.