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Metrosep C 4: Improved Cation Separation Thanks to a New Column Material
Metrohm presents the Metrosep C 4, a new cation column with outstanding separation characteristics. The Metrosep C 4 is the result of latest advances in synthesis procedures and production processes and has even better separation characteristics than its predecessors, the Metrosep C 2 and Metrosep Cation 1-2 column types.
The Metrosep C 4 column has a clearly improved peak shape which leads to a
better separation of the individual peaks. Direct comparison has revealed that using the Metrosep C 4 the number of theoretical plates per meter is higher than that obtained on the Metrosep C 2 or Cation 1-2 columns. Additionally, for standard cations, transition metals and amines, the Metrosep C 4 column shows better results with regard to peak shape, peak height, resolution and asymmetry factor. Especially for monovalent cations, the C 4 column achieves a very high number of theoretical plates per meter, thus yielding outstanding detection limits and an improved separation of sodium and ammonium.
Circle no. 314 New Metrohm Brochure and Webpage ‘Water Analysis’
Of the numerous hazardous substances found in water, about 200 guideline values have been listed by the WHO. However, which method to choose to determine which substance? Metrohm’s new brochure «Water Analysis» provides answers. Metrohm’s complete know-how (instruments and applications) on water analysis is accessible on the new homepage
water.metrohm.com
‘Water Analysis’, which can be ordered free of charge, is a condensed summary of the company’s comprehensive know-how in the analysis of water in its various forms and uses:
• drinking water • sea water • water for pharmaceutical use • ultrapure water • cooling water and boiler feed water • process water
• waste water
Using the most important national and international standards (DIN, EPA, ISO, ASTM) as a matrix, ‘Water Analysis’ suggests methods and instrumentation suited best to check the respective parameters. Methods include pH and conductivity measurement, titration, ion chromatography, voltammetry, atline and online process analysis. ‘Water Analysis’ is of great value for anyone who is involved in the professional quality assurance of water.
The easiest way to access Metrohm’s complete know-how on water analysis is the website
water.metrohm.com. Here you can find a multitude of applications as well as information on analytical instrumentation for water analysis. Downloads are free of charge.
Circle no. 316
Finding water …
… is much easier with Metrohm systems for moisture analysis. The shelf-life, function or quality of your product is determined by the water content? We’ve got what it takes to give you perfect control over this crucial para- meter:
Metrohm’s 862 Titrosampler wins 2009 Silver IBO Design Award
Metrohm is proud to announce that the 862 Titrosampler has been awarded the 2009 Silver Design Award by Instrument Business Outlook (IBO), a Los Angeles-based period- ical dedicated to providing strategic information for the
analytical and life science instrument industry.
«The design of the 862's base sets it apart from other automated titration systems», IBO states, and continues «Building a titrator into the autosampler allowed for a compact footprint while leaving it accessible and open».
The 862 Compact Titrosampler accommodates 12 sample beakers and allows various determinations to be carried out fully automatically, including cleaning and conditioning the electrode between the determinations. The system features a large display, which allows the status of sample series to be followed via live titration curve. Sample series can be interrupted at any time to determine samples with higher priority. The 862 Compact Titrosampler can be operated by mouse click; various dialogue options are available to adapt the instrument to the particular user.
The IBO Design Award is a strong confirmation of Metrohm’s leading position in the market and their ability to combine cutting-edge technology with outstanding design.
Circle no. 315 Circle no. 317 LAB ASIA - NOVEMBER/DECEMBER 2009 - ADVERTORIAL
Karl-Fischer-titrators and coulometers for determining water contents from 100% down to the ppm-level
complete automation of sample prepara- tion and processing
kf.metrohm.com
Ecknauer+Schoch ASW
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