23 Contact Angle Measurement
The DSA14 from Krüss is the entry-level model for software-supported contact angle measurement. With this favourably priced manual version, but without any concessions with respect to quality, operating comfort and software, the latest contact angle measuring system from Krüss is a real alternative. An extensive range of accessories enables the basic instrument to master demanding measuring tasks.
The DSA14 features: high-resolution firewire camera (IEEE 1394a); image recording rate up to 60fps (optional); contact angle measurement, surface free energy,surface and interfacial tension of liquids; measurements even on larger samples up to 300xoox50mm (WxDxH); easy-to-use software with numerous evaluation possibilities; new Dose&Push dosing system; and high-quality mechanical construction.
Liquid dosing is extremely simple and highly accurate with the new Dose&Push dosing system from the EasyDrop contact angle product range. The drops are generated with a reproducibility of 0.3†microliter and placed on the sample at the touch of a finger. Software-controlled contact angle measurement can start immediately after drop placement ñ without any further actions being required. With image recording rates of up to 60fps even rapid changes in the contact angle can be recorded. The DSA14 is supplied with the well-proven, frequently optimised Krüss DSA1 software. This is easy to use, while still offering the whole range of evaluation methods in common use today.
LAB PRODUCTS Circle no. 586
High Temperature GC Column Line Expanding
Phenomenex, Inc announced the expansion of its successful Zebron Inferno high-temperature GC column line, adding two new mid-polarity columns. The new ZB-XLB-HT and ZB-35HT are the first mid-polarity columns that can withstand temperatures up to 400˚C, enabling analyses of compounds with high molecular weights and boiling points. The Zebron Inferno non-metal columns are stable at high temperatures due to proprietary coating and binding technologies, providing long lifetime, low bleed and low activity. They are ideal for analyses in environmental, food and beverage, pharmaceutical, toxicology and biofuels applications. Standard fused-silica columns are not engineered to withstand temperatures above 380˚C and their polyimide coating begins to degrade, eventually becoming brittle and inflexible. The Phenomenex Inferno columns are specially designed for high-temperature analysis, with more rugged stationary phases and coating.
The ZB-XLB-HT Inferno column is stable up to 400˚C and provides unique selectivity for confirmational analyses. This MS-certified column offers low activity and good peak shape for acidic and basic samples. The ZB-XLB-HT proprietary phase is ideal for polychlorinated biphenyls (PCBs), pesticides, herbicides and many EPA methods. The ZB-35HT is a 35%-phenyl-65%-dimethylpolysiloxane intermediate-polarity column that is stable up to 400˚C, enabling high molecular weight analysis. It is particularly well suited for trace analysis with bleed-sensitive detectors. Applications include semi-volatile compounds, pesticides, drugs of abuse, pharmaceuticals, steroids and many EPA methods.
“Our successful Zebron columns were the first non-metal columns to provide stability at very high temperatures,” commented Ngoc Nguyen, Brand Manager for Phenomenex. “The increased column stability can be beneficial even for routine temperature ramps above 320°C, which can cause some GC columns to become brittle and produce high bleed.”
CHROMATOGRAPHY Circle no. 587
ADVERTORIAL Yorlab Extension and Development
A significant milestone has been reached in the extension/development of Yorlab’s product range. Sales Manager, Mark Walsh commented,
“We are pleased to announce that we have just taken delivery of a new lathe that will give us the ability to produce vessels with a much greater diameter. Vessels with up to a 50 litre capacity that were previously impossible to achieve are now well within our capabilities.”
The new lathe is not the only new acquisition, Yorlab has also made a significant investment in other glass working machinery for their Cutting Room, these include a new diamond drilling rig that will expand Yorlab’s glass drilling capabilities, 2 new diamond lapping machines and a centreless grinder that will allow Yorlab to produce the precision bore and wall tubing that are demanded by many of today’s instrument manufacturers and research scientists.
“Construction of a new cutting building is planned to start in July 2010 continuing our development programme into new areas of business. We are aiming to be able to offer a complete glass engineering service,” said Mark Walsh, “but of course the equipment is not the most important element of our future success, our highly skilled workforce is our greatest asset. This is why we are so committed to our ongoing training program and are currently seeking another new apprentice to join our growing team of experts.”
Yorlab are launching their new catalogue at the end of the year so look out for your copy, or drop them an email to make sure you are on their mailing list at
sales@yorlab.co.uk.
YORLAB
Our current product and service portfolio represents 30 years of experience, expertise and
innovation, we are constantly striving to improve our products and our processes.
OUR BRAND NEW WORKSHOP IS EQUIPPED WITH MODERN CUTTING, GRINDING, POLISHING, EDGING, DRILLING AND SANDBLASTING FACILITIES.
YORLAB OFFER A MODIFICATIONS AND REPAIRS SERVICE FOR MOST STANDARD ITEMS OF LABORATORY GLASSWARE AND EQUIPMENT
WE ALSO OFFER A BESPOKE MANUFACTURE SERVICE FOR LABORATORY TEST EQUIPMENT
TELEPHONE: 01904 488599
FOR FURTHER DETAILS
2 Chessingham Park Common Road Dunnington York YO19 5SE
Circle no. 588
Email:
sales@yorlab.co.uk www.yorlab.co.uk
TEL.01904 488599 FAX.01904 489358
Circle no. 589 LABMATE UK & IRELAND - SEPTEMBER 2009
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