29 Reliable Easy-to-Use Microplate Sealer Porvair Sciences has announced that a new pdf download brochure is now available for its MiniSeal Plus thermal microplate sealer.
The MiniSeal Plus is a budget priced, semi-automatic thermal microplate sealer that uniquely combines enhanced comfort and safety in use, with unmatched repeatability in sealing any ANSI/SBS standard footprint plates up to 48mm high and most currently available PCR plates.
Designed for laboratories needing to seal small to medium numbers (10-50) of plates each day, the MiniSeal Plus is compact, easy to use and simple to install. Unlike bigger automated sealers, MiniSeal Plus does not require a compressed air supply to operate. Instead, all operations are electronically controlled through the splash- proof keypad, meaning the MiniSeal Plus can be installed, up to temperature and sealing your plates within minutes of unpacking. The compact footprint (H 310 x D275 x W 181mm) means MiniSeal Plus will fit just about anywhere on your lab bench, or inside a fume hood if required.
Circle no. 404
Unique Mobility Instrument
Wyatt Technology Corporation announced the launch of its Möbiuζ™ mobility instrument. The instrument incorporates several patent-pending innovations to realise fast and reliable measurements of macromolecular electrophoretic mobilities. Besides being
capable of swiftly measuring mobilities of large particles such as liposomes and VLPs, Wyatt Technology’s Möbiuζ™ is the only laser- based instrument that achieves reproducible measurements of traditionally very challenging protein samples including antibody
formulations, bovine serum albumin and lysozyme. It is designed specifically to address the unique measurement of protein mobilities rather than a remake of a device designed to measure particulates.
As well as being a non-invasive method, laser light scattering is prized for its ability to carry out physical, first-principle measurements of macromolecules’ electrophoretic mobilities. However, when it comes to proteins, satisfactory results have been difficult to come by due to their small sizes (<5 nm) and their more conspicuous Brownian motions. Lengthier measurements are therefore necessary to average out the mobility-masking diffusion and reveal the macromolecular electrophoresis. In the process, these fragile molecules are subjected to electrical currents and often irreversibly damaged and degraded, rendering the results unreliable. As the solution ionicity increases, the situation deteriorates because even more current is required to drive measurable electrophoresis. Existing products on the market notoriously ‘cook’ their protein samples and struggle to measure any macromolecule smaller than 5 nm at a reasonable concentration.
The key to the successful measurement of proteins’ mobilities lies in a much shortened measurement time and the availability of sufficient data to average away molecular diffusion. Wyatt Technology’s
Möbiuζ™ achieves these goals through massive parallelism of detection and extends the measurable molecular size range below 2nm. A reduced measurement time (<60 seconds in most cases) contributes to excellent preservation of precious and fragile protein samples.
Circle no. 405
PITTCON NEWS
ADVERTORIAL
Tintometer Launch New Automatic Spectrophotometric Colorimeter for Liquids
The Lovibond® Tintometer® PFXi series sees the
launch of a new technological breakthrough from the Tintometer Ltd. The new PFXi series of instruments include RCMSi technology (Remote Calibration & Maintenance Service via internet). This unique feature allows a calibrated measurement to be taken using an ISO 17025 certified liquid standard. The spectral response is transmitted to The Tintometer Ltd’s secure calibration server in Amesbury UK. On completion of this procedure a traceable calibration certificate is e-mailed to the user. The RCMSi system not only gives the user added confidence that the instrument is working within tight ISO standards but also reduces the need for expensive on-site servicing and preventative maintenance of the unit.
The large, clear LCD screen allows the display of graphs and data in a wide variety of languages and the easy to use menu system guides operators through the selection of operating parameters. Measurements are initiated by just a single key press.
The accuracy, repeatability and reproducibility of data provided by the instruments allow for tighter colour specifications and greater colour consistency, giving companies the confidence needed to make important decisions regarding high value consignments and refining operations. When measuring Saybolt or Pt-Co Colour of clear, water-white products, the unique long sample path length ensures precise colour measurements, without multiplying errors.
Lovibond® instruments are widely used in industry to
ensure that these colour changes can be monitored reliably and easily, and that industry can ensure their products meet international specifications.
Circle no. 406 Circle no. 407
Call +44 (0)1980 664 800
Spectrophotometric Colorimeter
LAB ASIA - MARCH/APRIL 2010 - LABORATORY PRODUCTS
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