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Improve sample processing reliability and analytical performance with the Model 4100 Water/Soil Sample Processor. This automated instrument is efficiently built to process up to 100 drinking water, wastewater, or soil samples.
Say goodbye to handling and processing samples for purge-and-trap analysis of volatile organic compounds (VOCs). The 4100 Sample Processor is designed to operate with (single or dual) Eclipse 4760 purge-and-trap sample concentrators.
The Model 4430 Photoionization Detector (PID) is a uniquely-designed gas chromatograph (GC) that selectively responds to aromatic and olefinic hydrocarbons in the presence of alkanes and other saturated hydrocarbons.
Our Model 4430 PID’s unique patented Window Sweep™ design prevents the sample stream from contacting and contaminating the lamp window.
Experience the convenience and flexibility of the Model 4450 Tandem Photoionization Detector/Flame Ionization Detector (PID/FID): a patented combination gas chromatography (GC) detector incorporating the Model 4430 PID and Model 4410 FlD.
Improve sample accuracy and save lab counter space with the Model 4551A Water Autosampler. Designed to work with our 4760 Eclipse Purge-and-Trap Autosampler, the 4551A automates VOC analysis for up to 51 clean or lightly particulated water samples.
The extremely compact 4551A Water Autosampler fits strategically under the 4760 Eclipse to save bench space. The instrument precisely transfers water samples from standard 40-mL volatile organic analysis (VOA) vials to the sparge vessel of the 4760 Eclipse for purging.
The 4760 Eclipse Purge-and-Trap Sample Concentrator uses a slim-line design and intuitive user interface to analyze volatile organic compounds (VOCs) quicker and more efficiently. Use to effectively monitor drinking water, wastewater, groundwater, storm water and more!
The Model 4760 combines our 30+ years of VOC experience in one highly-productive instrument. Users can expect faster cycle times, higher sample throughput, and exceptional reliability.
The Model 5320 Electrolytic Conductivity Detector (ELCD) excels in select detection of halogen-containing compounds, while also proving its flexibility by offering sulfur and nitrogen detection.
The Model 5320 is our third-generation ELCD. It combines three key components: a reactor assembly, cell-solvent assembly, and detector controller.
Increase efficiency and save counter space with the Model 5350 Tandem Photoionization Detector/Electrolytic Conductivity Detector (PID/ELCD), a smartly designed instrument for dual detection of aromatic and halogen compounds.
The Model 5350 Tandem PID/ELCD packs in the power of two great detectors: Model 4430 PID and Model 5320 ELCD, removing the need for separate analyses of aromatic and halogen compounds.
The Model 5360 XSD™ offers superior selectivity for detection of halogen-containing compounds.
Installed in the standard port of a gas chromatograph (GC), the Model 5360 XSD™ detects halogen-containing compounds eluting from the GC’s capillary column. This instrument is unique in the fact that it doesn’t contain radioactive sources or use organic solvents like other halogen selective detectors. This eliminates the need for catalyst tubes, solvents, resin cartridges, pumps, and transfer lines.
The Model 5383 Pulsed Flame Photometric Detector (PFPD) uses superior sensitivity and increased selectivity to easily and accurately analyze sulfur, phosphorus, and 26 other elements.
The superior sensitivity of the 5383 PFPD makes it the instrument of choice for the analysis of sulfur, phosphorus, and other elements. Its linear, equimolar response to sulfur allows selective measurement of individual sulfur species from low ppb to ppm levels, and total sulfur as the sum of individual peaks. The unique capability to obtain simultaneous sulfur and hydrocarbon chromatograms from a single PFPD detector sets it apart from other sulfur detection technologies.
Work smarter with the Model 5390 Tandem PID/XSD, which combines the power of the 4430 Photoionization Detector (PID) and the 5360 Halogen Specific Detector (XSD) to simultaneously detect halogen and aromatic compounds.
This patented tandem detector offers the production of two gas chromatograph (GC) detectors, the 4430 PID and 5360 XSD, in one efficient package. Its unique design eliminates transfer lines and uses only one detector port.
The Agitator/Stirrer for the GERSTEL MultiPurpose Sampler (MPS) can either operate in agitation or stirring mode using conventional magnetic stir bars. Stirring helps efficiently mixing heterogeneous or viscous samples, accelerates equilibration for headspace sampling and extends the lifetime of SPME fibers.
Improved routine analysis of samples with high levels of involatile compounds, particulates and other solid matrix material
Matrix residue from samples can contaminate a GC inlet liner afterwithin a few runs, leading to peak broadening and loss of analytes through adsorption in the liner. Under such conditions, the analyst is forced to perform frequent liner replacement, an operation which normally requires manual intervention. Running large series of samples will represent a serious challenge.
Performing Solid Phase Extraction (SPE) manually can be time consuming and nerve-racking, especially when recovery and reproducibility are lacking due to sample variability. If SPE can be reliably automated, it becomes a much more efficient and reproducible process.
The ATEX option enables the introduction of liquid samples directly into micro-vial inserts used for thermal Desorption / Thermal Extraction in the TDU. Extracted analytes are refocused and concentrated in a Cooled Injection System (CIS) inlet prior to introduction to the GC/MS system.
The Sample ID (SID) 1D/2D Barcode reader for the GERTEL MultiPurpose Sampler (MPS) uses a dual camera setup and image analysis for positive identification of samples. SID can be connected to a PC or via LAN using USB connectivity.
Fully implemented into the MAESTRO software, SID enables independent sample logging or fully integrated sample ID transfer to the data file with multiple user-defined options for sample verification and the handling of deviations.
The GERSTEL CF200 is a powerful centrifuge for the GERSTEL MultiPurpose Sampler (MPS Robotic). The CF200 performs centrifugation of up to 6 samples at up to 4500 rpm/2000g. Centrifugation power can be specified in rpm or in g foce using the GERSTEL MAESTRO Software.
The GERSTEL Cooled Agitator is a modified version of the standard 6 position agitator used with the MultiPurpose Autosampler. It incorporates a Peltier based cryostat that allows samples can be cooled down to 10C and is also useful when stable ambient temperature are required.
GERSTEL Cooled Injection System – internationally the most frequently used PTV-type universal inlet, with patented septumless sampling head. Gas chromatographic analysis is now more versatile, reproducible and has lower detection limits than ever before, thanks to temperature programmed sample injection using GERSTEL Cooled Injection System.
The GERSTEL CTS is used for cryogenic trapping and concentration of analytes. The CTS enables improved separation and lower detection limits. Following the concentration step, analytes are introduced to the GC column using a highly accurate temperature program. The CTS can be used in a single-column GC system placed at the head of the column or between the pre-column and the analytical column in a multidimensional system in order to refocus analytes prior to analytical separation.
Extraction in Seconds
DPX is a fast and efficient SPE technique used for a wide rnge of applications such as drugs of abuse, therapeutic drug monitoring, comprehensive screening, pharmacology studies (NNK), as well as pesticides in fruit and vegetables. DPX is based on unique and patented SPE devices: Pipette tips that incorporate loosely contained sorbent material, which is mixed with the sample solution. Turbulent air bubble mixing creates a suspension of sorbent in the sample ensuring optimal contact and highly efficient extraction. The extraction is performed much faster than with traditional SPE techniques.
Automated Dynamic Headspace (DHS) is available for the GERSTEL MultiPurpose Sampler (MPS). The DHS station efficiently extracts and concentrates VOCs from liquid or solid sample placed in standard Headspace vials (DHS) or in larger sample containers up to 1 L volume (DHSLarge). The sample is thermostated and agitated while the headspace is purged with a controlled flow of inert gas, providing controlled and efficient extraction conditions. Sample temperatures can be selected from 10oC to 200oC. Lowering the temperature provides a means of reducing the amount of water vapor released and ultimately retrapped. The DHS station additionally holds a replaceable adsorbent- or sorbent filled tube used for analyte concentration. The temperature of the adsorbent tube during the DHS process can be varied from 20oC to 70oC for optimal trapping of the analytes in question.
The DHS can be extended with the DHSLarge module to perform analysis of large or inhomogeneous bulk samples. For example, consumer products, packaging or flooring material can be placed directly in sample containers up to 1L in volume. Sample holders are available for flooring material, eliminating interfering emissions from the edges of the cut sample. Purge periods can be introduced to simulate air exchange conditions in environmental chambers. A series of analyses can be performed on a sample to determine emission behavior over time. DHS operation or DHSLarge operation is selected by mouse-click.
When analyzing samples with high levels of involatile or insoluble matrix residue, GC inlet liners can become contaminated a after just a few runs. Matrix build-up can lead to peak broadening and loss of analytes through adsorption in the liner. Under such conditions, in order to get correct analysis results, the analyst must regularly perform a liner exchange, an operation which normally requires several manual steps. Using eLEX this complex task becomes quite simple: An ALEX sampling head is mounted on top of the Cooled Injection System (CIS) inlet and whenever the liner has to be exchanged the pneumatic lock is released.
Automated Filtration Using The MPS
Suspended particles and matrix material in a sample can significantly influence analysis results and system suitability. Removing particulate matter from a sample or extract prior to analysis is therefore critical for many GC/MS- and LC/MS analysis methods, particularly when large series of samples must be analyzed automatically.
GERSTEL GRAPHPACK technology was designed to provide leak-free, low dead volume, inert connections quickly and reliably for any type of connection used for gas chromatography. The same technology is used for inlet and detector connections as well as for column connections (with or without make-up gas) and multiple column splitters. GRAPHPACK fittings exist for almost all GC inlets and detectors, so a laboratory with multiple brands of GCs can use the same ferrules, adapters, and nut for all connections needs.
Unlike traditional electronic noses that are based on solid-state sensors, the GERSTEL ChemSensor System use proven quadrupole mass-spectrometer technology.
The GERSTEL On-Column Injection Kit quickly, and easily converts a CIS into an on-column inlet.
The GERSTEL PYRO enables highly flexible and efficient automated pyrolysis of solids and liquids at up to 1000C combined with determination in a GC/MS system of the thermal decomposition products. If required, thermal desorption and pyrolysis of the same sample can be performed in sequence, enabling the analyst to obtain cleanest possible pyrogram and the maximum amount of information in the shortest possible time. Some key areas in which the PYRO is used are production quality control; product development; and forensic science.
The Tube Conditioner (TC 2) enables simultaneous conditioning of up to 10 TDS tubes or up to 50 GERSTEL Twisters.
Clean and well-conditioned TD tubes and Twister are essential in order to fully take advantage of the high sensitivity of the thermal desorption technique and to achieve the best possible quality of analysis. The TC 2 operates independetly of the GC/MS system, eliminating the risk of system contamination during conditioning and keeping the GC/MS available for analytical tasks ensuring maximum productivity.
The GERSTEP MPS configured as Headspace Autosampler provides the analyst with a high productive tool for performing GC Headspace analysis. The MPS is perfectly suited for routine analysis for R&D applications that demand a higher degree flexibility.
GERSTEL provides a wide range of cooled trays and stacks for the MPS Robotic series either as part of an analysis system or as an off-line WorkStation. Trays and stacks available with Peltier cooling or cryostatic cooling covering a temperature range from 4 to 70C.
The LV-20 Standards Addition Module pairs with our Model 4551A Autosampler to improve accuracy and precision of GC-GC-MS analyses, while minimizing standard usage and decreasing laboratory costs of expensive standards.
Designed as an option for the 4551A Autosampler, the LV-20 Standards Addition Module injects programmed volumes (1, 2, 5, 10, or 20 µL) of internal standard, surrogate, or matrix spike standards to improve the accuracy and precision of GC-GC-MS analyses. The LV-20 is equipped with high-speed injection valves which inject user-programmed volumes of standard with no excess overfill volume that fixed-loop based systems require to operate. All LV-20 functions are programmed using the intuitive touchscreen and Windows® CE software on the Eclipse 4760 Purge-and-Trap Sample Concentrator.
The MAESTRO software operates all GERSTEL modules and system solutions in a simple and efficient manner. MAESTRO can be operated as stand-alone software or fully integrated with the Agilent Technologies ChemStation. Just one method and one sequence table runs the complete system from Sample Prep and Sample Introduction to GC/MS or LC/MS analysis. Set-up is performed in a very simple manner: By mouse-click.
Water analysis can be complicated if the sample contains a large proportion of suspended substances and foreign particles.
Membrane extraction promises simplification in this case: a novel procedure for sample preparation developed by the Environmental Research Centre Leipzig-Halle, which has been automated by GERSTEL.
Focusing on the core taks of an autosampler, the MPS Liquid offers large sample capacity, modern intuitive software control, as well as the capablity to perform key sample preparation steps such as the addition of internal standards or a derivatization reagent. The MPS helps you ensure that your laboratory offers fast, responsive and productive analyses. Last but not least, the MPS Liquid helps to ensure that your results are reliable and accurate.
The most advanced column switching system available, providing unsurpassed flexibility for gas chromatographic analysis.
The multidimensional heartcutting chromatography system from GERSTEL finally does away with the complexity and operational difficulties of the past. The system is based on advanced electronic pneumatic control EPC and GERSTEL GRAPHPACK technology allowing unprecedented ease of use and reproducibility.
Fully automated solvent evaporation integrated with your sample preparation.
The GERSTEL Multi-Position Evaporation Station (mVAP) performs solvent evaporation enabling automated sample concentration for lower detection limits as well as solvent exchange for improved chromatography and LC/MS ionization. mVAP is an option for the GERSTEL MultiPurpose Sampler (MPS): Up to 196 samples in standard autosampler vials can be concentrated in batches of up to six.
The GERSTEL Olfactory Data Interpreter (ODI) enables fast and reliable evaluation of olfactory information including identification of unknown odor-active compounds. Chromatography data is typically acquired using a mass spectrometer / mass selective detector (MSD), a Flame Ionization Detector (FID) or a Sulfur Chemiluminescence Dectector (SCD) or a combination thereof. The chromatogram is loaded into the ODI software, which automatically recognizes the chromatogram data format before importing the data. In parallel, an olfactogram is imported with information provided by the user as he or she assessed odors eluting from the GC column in parallel with the detection process during the GC run. The olfactogram combines spoken comments from the sensory analyst and the registered intensities along a time axis. The „Olfactory Intensity Device“ (OID) conveniently enables the user to indicate the intensity of the olfactory impression as it transpires. Text comments are added using voice recognition software to translate spoken descriptors. The combined information is presented in the ODI-Software in a clear and concise overview including a chromatogram, an olfactogram and a table.
The ODP sniff port allows the sensing of compounds by the human nose as they elute from the gas chromatograph. The effluent is split as it leaves the column so that it arrives simultaneously at the nose and at the detector.
This way additional information is gained on compounds that are responsible for specific odors.
The GERSTEL PFC automatically collects compounds after gas chromatographic separation. The PFC is equipped with six sample traps and one waste trap. Traps are available in 1 µl or 100 µl volumes.
For optimum compound recovery, the PFC can be equipped with optional LN2 trap cooling or cryostatic trap cooling systems.
The GERSTEL Pyrolysis Module (PM 1) is an accessory for the Thermal Desorption System (TDS). The PM 1 enables heating of samples beyond the normal thermal desorption temperature limit of 400C to a final temperature between 500 and 1000C. Applications include the determination of thermal decomposition prodcuts from – and thereby the structure of – samples like paint, polymers, adhesives, plastics and packaging materials.
quickMix for the GERSTEL MPS Robotic series enables extremely fast and efficient mixing nad extraction of samples as part of the automated sample preparation process.
The mixing power is comparable to that of vortex mixing. Samples are agitated in a special tray on the module, depending on the vial size holding up to 6 samples at a time. The tray can be exchanged to operate with 2 mL, 4 mL, 10 mL and 20 mL vials. If needed, quickMix can be configured with a heated tray.
Gas chromatography (GC) experts rely on sharp peaks and baseline resolution to provide accurate answers. To perform chromatographic analysis of real-world samples, analysts often must deal with either complex sample types such as essential oils and petroleum fractions, or complex matrices like biological fluids, foods, sludge, or polymers. Once the sample has been prepared for analysis, separation of all the individual compounds present by means of a single chromatographic separation can be challenging due to the compounds having different ranges of polarity, boiling point, solubility, MW, and concentration. It is therefore necessary to use innovative yet robust techniques that go beyond using a single chromatographic dimension to achieve compound separation.
Solid Phase Micro Extraction (SPME) is widely used technoque for extraction and concentration of VOCs and SVOCs combined with GC/MS. SPME is especially useful in the food, flavor and beverage industries and for environmental monitoring.
The MPS Robotic is a highly efficient GC/MS and LC/MS autosampler with extended robotic functionality. The MPS robotic provides reliable and efficient processing of complex tasks. Syringes are mounted in individual syringe modules, which be exchanged automatically within a running sequence when using the MPS RoboticPro for maximum flexibility.
Adding the TDS A Autosampler enables your Thermal Desorption System (TDS) to perform completely automated processing of up to 20 samples using one or more analysis methods.
The Thermal Desorber TD 3.5+ is a flexible automated solution for thermal desorption and thermal extraction. The TD 3.5+ fits on top of any modern GC without the need for additional bench space and it is perfectly suited for the analysis material and for thermal desorption of sorbent tubes used to sample whole air. The TD 3.5+ handles standard 3.5″ tubes, as prescribed in several standard methods, in addition to GERSTEL plus tubes, which hold up to 20% more sorbent for enhanced break-through volume, improved recovery as well as improved limits of detection.
The GERSTEL Thermal Desorption System (TDS) is a flexible multi-functional system for highly sensitive determination of volatile and semi-volatile organic compounds (VOCs and SVOCs) that have been trapped on adsorbent tubes or on GERSTEL Twisters.
The TDS is also frequently used for direct thermal extraction and determination of VOCs and SVOCs from solids without sample preparation. Application examples are natural products, flavor and fragance, emssions from materials that are used indoors in buildings or in automobiles, semiconductors, polymers and packaging.
The worlds most flexible Thermal Desoprtion Instrument
The Thermal Desorption Unit (TDU 2) is a flexible automated solution for thermal desorption and thermal extraction. The TDU 2 fits on top of any modern GC without the need for additional bench space and it is perfectly suited for the analysis of gaseous, liquid and solid samples.
The TE is a preparation system for bulk samples to be analyzed using the Thermal Desorption System TDS.
A solid or gel sample is placed into the TE tube and is heated to the desired temperature. Compounds of interest are transferred into the TDS desorbent tube with a carrier gas flow. The compounds are the determined using the Thermal Desorption System (TDS).
Solid Phase Micro Extraction (SPME) is a widely used technique for extraction and concentration of VOCs and SVOCs combined with GC/MS. SPME is especially useful in the food, flavor and beverage industries and for environmental monitoring. Recent developments focus on increased phase volumes to reach sensitivities more comparable to the GERSTEL-Twister. The Thin Film SPME (TF-SPME) technology combines higher sorbent phase volumes and a large surface area based on a flat rectangular shape.
Automated spiking of standard tubes for thermal desorption (TDU/TDS)
Why cumbersome and complicated when it can be done in such as simple way: In combination with the GERSTEL MPS Robotic series, the GERSTEL Tube Spiking System (TSS) enables atuomated generation of standard tubes for Thermal Desorption analysis. Adsorbent tubes are spiked with a user defined volume of liquid standard and solvent purged with a defined flow of carrier gas as required for method calibration and validation according to international standard methods. Up to five tubes can be mounted and spiked in every TSS unit and multiple TSS unis can be mounted on the MPS for higher throughput.
The GERSTEL TSPS is designed for the preparation of solvent-free thermal desorption standards for use in air and industrial hygiene analysis.
TSPS provides an excellent alternative to commonly used ‘one-at-a-time’ classic methods. The TSPS is simple in design, speeds up routine laboratory procedures and can be easily used by staff with any level of technical training.
The TSPS can be equipped with up to six GERSTEL thermal desorption tubes that are easily attached using a specially designed connection system.
For Multi-Stir Bar Sorptive Extraction (mSBSE).
The GERSTEL Twicester® offers a simple possibility to position one or more Twisters magnetically on the inner wall of a sample vial for more efficient sample extraction. The Twicester approach enables the extraction of a sample using more Twisters simultaneously, for example using Twisters with different types of phases for a more complete combined extraction and improved analyte recovery. The method, referred to as Multi-Stir Bar Sorptive Extraction (mSBSE), was developed in a cooperation between GERSTEL K.K, Tokyo, Japan , and Research Institute for Chromatography (RIC) of Professor Pat Sandra in Kortijk, Belgium. Twicester is well suited for the simple and efficient determination of a wide range of flavor compounds in aqueous matrices and it has been used successfully for the analysis of beverages.
Twister® Back Extraction as MPS Option
The combination of Twister technology (SBSE; Stir Bar Sorptive Extraction) with elution and subsequent chromatographic detection can be powerful and reproducible process for the determination of organic analytes from aqueous samples; e.g. PAH, psticides, herbicides or phenols.
The GERSTEL Twister® enables efficient extraction of organic compounds from aqueous matrices based on Stir Bar Sorptive Extraction (SBSE). SBSE is a solvent-free extraction technique, which is significantly faster than most conventional extraction techniques. SBSE is up to 1000x more sensitive than SPME since the stir bar has significantly more sorbent volume and since it can extract, and concentrate analytes from, a much larger sample volume due to the efficient stirring.
Standard autosampler vials are placed in the balanec by the MPS and liquid samples, stnadards, reagents or diluents added, weighed and registered separately. For each sample, mulitple liquid additions can be defined by mouse-click in the MAESTRO Software.
Flexible and reliable sample preparation robot providing efficient automation of your laboratory processes.
The GERSTEL MuliPurpose Sampler (MPS) provides a wide range of capabilities in one robotic system. The MPS WorkStation is a bench-top version of the MPS, independent of the GC/MS or LC/MS analysis system. The WorkStation can be configured as Single Head or Dual Head version enabling it to perform a range of functions to meet almost every requirements in terms of performance and throughput. The MPS WorkStation provides complete flexiblity. In combination with the GERSTEL MAESTRO software, the MPS WorkStation offers simple set-up and advanced automation capabilities.