30 chromatography • spectroscopy
Super resolution digital microscope with automated measurements
Digital microscopy manufacturer, Keyence has released its latest microscope system, the VHX-2000. The VHX Series Digital Microscope was designed to alleviate the shortcomings of traditional, optical light microscopes - shallow depth-of-field, short working distance, lack of portability and versatility, sample limitations, etc.
By integrating advanced zoom optics with
a CCD camera, 17-in LCD monitor, light source, controller and analysis/reporting software, the VHX streamlines testing and improves the speed and efficiency of the inspection process. With a magnification range from 0.1x -
5000x, the VHX Series enables a wide range of microscopic observation from macro-scale stereoscopic imaging to the detailed analysis of an SEM. Many lighting techniques are also supported including bright and dark field, transmitted, polarized, and differential interference observation. Building on top of the VHX platform, the VHX-2000
incorporates several new features. A colour filter wheel has been added to allow users the option of choosing a
specific wavelength (red, green or blue) of light for their samples. A Super Resolution mode combines the blue filter with Keyence’s pixel shift technology, capturing images with 25 per cent better resolution. To improve the operation and ease-of-use, the
VHX-2000 can be equipped with a motorised XY stage along with motorised Z-axis lens control. Users can adjust movement in all three axes by using an included
Convergence chromatography system
Waters Corporation’s ACQUITY UPC(2) System is a new category of separations science instrumentation that gives laboratories previously unavailable options for tackling tough analytical challenges. Waters says the system expands the boundaries
of reverse phase liquid chromatography (LC) and of gas chromatography (GC) separations and offers a replacement option for normal phase chromatography applications. Employing the principle of UltraPerformance
Convergence Chromatography, Waters ACQUITY UPC(2) System is a novel analytical system that gives laboratories an indispensable tool for tackling tough- to-analyse compounds including hydrophobic and chiral compounds, lipids, thermally-labile samples and polymers. Compressed carbon dioxide, the primary mobile
phase for UPC(2), offers numerous major advantages over liquid mobile phases or carrier gases that are used with LC and GC. For one, carbon dioxide alone, or combined with a co-solvent, is a low viscosity mobile phase that achieves higher diffusion rates and enhanced mass transfer than liquids used in HPLC. For another, when compared to GC, carbon dioxide alone is a mobile phase that allows separations to occur at a much lower temperature.
www.scientistlive.com Scientists can routinely separate compounds
that are less amenable to analysis by LC and GC including molecules having a wide range of polarities. With its ACQUITY UPC(2) System, Waters is
offering several sub two-micron particle technology column chemistries in a variety of dimensions including BEH (Ethylene Bridged Hybrid), BEH 2-EP (2-Ethylpyridine) and CSH (Charged Surface Hybrid) Fluoro-Phenyl. This combination of chemistries gives scientists
the ability to precisely vary mobile phase strength, pressure, and temperature. With the ability to fine-tune the resolving power and selectivity of the system, scientists can exercise better control over the retention of analytes for separating, detecting and quantifying structural analogs, isomers, and enantiomeric and diasteriomeric mixtures. A key benefit of the Waters ACQUITY UPC(2)
System is the use of inexpensive and non-toxic compressed carbon dioxide as a primary mobile phase that can take the place of toxic and volatile organic solvents that are extremely expensive to purchase and dispose.
For more information, visit
www.waters.com
control pad. When combined with our Double’R lens/magnification recognition function, the VHX-2000 can automatically provide the ideal movement speed for the XY stage and enables one-push automatic focus and calibration. The Image Stitching function can now be completed with just the push of a button, and at much higher speeds, to produce up to a 20,000 x 20,000 pixel image that expands the viewing area by up to 200 times. Automated measurement functions simplify the most difficult of measurement tasks and help to remove variation between different users. The system also has the ability to save a portion of the
image/measurements as a template to be used to measure future samples with a click of the mouse.
Enter 30 or ✔ at
www.scientistlive.com/eurolab
Keyence Deutschland GmbH, Neu-Isenburg, Germany.
www.keyence.de
New software for gel permeation
Agilent Technologies Inc has announced the launch of the new Agilent GPC/SEC software for gel permeation/ size exclusion chromatography with improved measurement and reporting capabilities for the food, chemical and pharmaceutical industries. The software can be used across different platforms,
providing a common element in both Agilent 1200 Infinity GPC/SEC systems and former Varian GPC/SEC systems. The Agilent GPC/SEC software comes with a look
and feel similar to the Agilent OpenLAB CDS LC software, making it easy for users to switch between GPC/SEC and HPLC. The software builds on shared Agilent OpenLab
software components, such as the Agilent Instrument Control Framework. The GPC/SEC software includes a component
that facilitates data collection and full control of all instrumentation supporting
RC.NET driver technology. The GPC/SEC software ensures reproducible results
for conventional analysis with concentration detectors only and advanced multidetector applications.
For more information, visit
www.agilent.com/chem/gpc
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