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Dosino Gradient – Upgrade your Ion Chromatograph to a Powerful Gradient IC System
How to achieve the best possible separation of early-eluting anions while maintaining acceptable retention times for late- eluting anions? The Dosino Gradient is the answer to this notorious challenge. Metrohm’s Dosino Gradient enables optimum separation in an acceptable time for all anions and all applications.
With the Dosino Gradient as many as five eluents can be combined and moved with a single double-piston high-pressure pump. The system enables different gradient profiles. A step gradient, where a change from a weak eluent to a stronger eluent takes place after a defined time, is the basic profile.
More complex profiles can also be easily programmed using the MagIC NetTM
ion chromatography software.
Linear changes in eluent composition can be made. One of the five eluent connections can, alternatively, also be connected to a rinsing solution. Thus a fully automatic rinsing step can be integrated a the end of a determination series.
Circle no. 14
900 Touch Control Titration was never easier
886 Professional Reactor for Improved Optical Absorption Detection
Metrohm presents the new benchtop control module for titration: •powerful as a personal computer •smaller than a netbook •as easy to use as an iPhone •brilliant touch screen
www.metrohm.com New Metrohm Brochure ‘Battery Research’
Metrohm has published a new brochure on instrumentation and applications for the electrochemical characterisation of batteries. The brochure is free of charge and can be ordered from your local Metrohm distributor. The total power output of a battery is determined by the properties of the electrolytes used and of the anode and cathode materials. Electrochemical instrumentation and methods available from Metrohm and Metrohm Autolab are recommended for, e.g.: • determining current/voltage characteristics • test for polarity reversal (charging) of batteries • characterising aging effects using impedance spectroscopy • recording discharge and charge cycles • determining battery capacity • measuring the electrolyte resistance and charge transfer resistance (electrode reaction) • determining pulse power rating/high-current capability
State-of-the-art ion chromatography using Metrohm’s 850 Professional IC instruments, on the other hand, is a highly efficient way to determine: • fluoride, hexafluorophosphate, tetrafluoroborate and lithium in eluates of particular components such as anodes, cathodes and separator foils • fluoride, hexafluorophosphate and lithium in electrolyte liquids
Circle no. 13
Metrohm presents the 886 Professional Reactor, a rugged and versatile flow-through reactor for fully automatic pre- and post-column derivatizations. The new reactor enables single- or multi-step derivatizations at any temperature between 25…120 ºC. The system features a variable reactor geometry allowing to adjust the reactor residence time of the reactants according to derivatization kinetics.
The new reactor facilitates post-column chemistry for any liquid chromatography system. Methods can be developed and optimised in terms of reagent concentration, flow rates and reactor residence time of the resulting mixture. Key benefits of the 886 Professional Reactor are: • broad application range • high derivatization yields • suitability for complex matrices • derivatizations at high temperatures • traceability of results due to chip-based intelligence
The flexibility of the new reactor has been demonstrated by optimising four widespread post- column techniques: the relatively slow ninhydrin reaction with amino acids and the fast derivatizations of silicate, bromate and chromate(VI). Further details are provided in a technical poster.
Circle no. 15 Circle no. 16
INTERNATIONAL LABMATE - AUGUST/SEPTEMBER 2010 - ADVERTORIAL
Ecknauer+Schoch ASW
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