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ADVERTORIAL Thermo Scientific SRS Pro Solvent Recycling System
Re-use your valuable solvent in light of the global acetonitrile shortage. With the ability to reduce mobile phase consumption by up to 90%, this innovative new system redirects untainted mobile phase to the solvent reservoir during isocratic HPLC operation. Powered directly from a USB connection, with easy plug and play operation, this system is ideal for any chromatography laboratory looking to conserve solvent use.
The modern and compact design of the SRS Pro eliminates the need for a power adaptor, as the solvent saver is powered directly from the chromatography data system PC, via a USB connection. Furthermore, the easy-to-use software enables simple configuration of the system parameters and includes on-line monitoring as well as audit trail facilities.
Through the continuous monitoring of the chromatographic detector output signal, the mobile phase is recycled to the solvent reservoir when the baseline is below a threshold value. If this value is exceeded, the eluent flow is redirected to waste, accounting for the transport time from the detector to the switching valve. When the signal returns below the threshold, the mobile phase is switched back to the reservoir.
Additionally, the SRS Pro is designed to recycle the mobile phase only when switched on. In case of a power failure, the valve is automatically positioned in the waste position and the mobile phase reservoir remains uncontaminated.
www.thermo.com/recyclesolvent Circle no. 331
Thermo Scientific HyperSep Retain Polymeric SPE Range of Polymeric SPE Products
HyperSep Retain PEP (Polar Enhanced Polymer) is Composed of high-purity, porous polystyrene- divinylbenzene (PS-DVB), modified with hydrophilic functional groups, HyperSep Retain PEP gives retention of polar and non-polar analyte types. The material is stable across the entire pH scale for use with any solution. Eliminating the issues associated with the use of silica-beads, such as sorbent material drying this method of solid phase extraction is ideal for separating drugs, metabolites and peptides in biological fluids, as well as peptides in serum or plasma.
In addition to HyperSep Retain PEP, two further functionalities are offered; HyperSep Retain-CX offers enhanced retention for basic compounds and HyperSep Retain-AX enhanced retention for acidic compounds. All HyperSep Retain chemistries enable fast and easy sample preparation method with high and consistent levels of recovery.
www.thermo.com/columns Circle no. 332
Thermo Scientific Reacti-Therm Sample Derivitisation Systems for GC and HPLC
These reliable and easy-to-use dry block heaters provide uniform, stable heating with a temperature range of 10 - 200°C. Ideal for performing heating, stirring and evaporation functions, this modular unit is CSA certified and CE compliant. Available in four different models: single block and triple block sizes with either heat only or heat-and-stir functionality, the unit is compatible with a range of interchangeable accessories, enabling it to adapt to a variety of vial types and sizes.
Each Reacti-Therm module contains a recessed cavity that holds either one or three interchangeable Reacti- Block aluminum blocks, which accommodate a variety of small reagent vials, test tubes and glassware. The heat-and-stir models incorporate Reacti-Vial Magnetic Stirrers, which are placed inside the small reaction vials for quick and easy reagent stirring. Furthermore, sample evaporation can be performed when the Reacti-Vap Evaporator is attached to the module. Optional remote temperature probes ensure a high level of accuracy and the LED display provides a clear readout of the sample temperature.
The Thermo Scientific Reacti-Therm Heating and Stirring Modules are ideal for any laboratory performing GC sample preparation and amino acid analysis using HPLC, as well as general sample incubation and evaporation.
Circle no. 333
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