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Teaching+Research
Determining the pH value of paper

Determining the pH value of paper

Two electrometric methods for determining the pH value of papers with homogeneous and heterogeneous pH cross-sections are described. A) Paper with homogeneous pH cross-section (extraction method) This method is used for papers made in one single process that have not been subjected to any subsequent conversion process such as coating....
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Determining the pH value of paper

Determination of total phosphate in phosphoric acid and phosphate fertilizers with 859 Titrotherm

Phosphate can be rapidly and easily titrated thermometrically using a standard solution of Mg2+ as titrant. The phosphate-containing solution is basified and buffered with NH3/NH4Cl solution before titration. The formation of insoluble MgNH4PO4 is exothermic. The method is a titrimetric adaptation of a classical gravimetric procedure.
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Water analysis in the field: Determining arsenic, mercury, and copper

Water analysis in the field: Determining arsenic, mercury and copper

Heavy metals such as arsenic and mercury find their way into the ground water in many regions of the world, either through natural processes or as the result of human activities. Limit values are exceeded many times over, particularly for arsenic in drinking water, in many areas. This calls for...
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Smart Acquire – Automated Raman material ID for defense and security professionals

Smart Acquire – Automated Raman material ID for defense and security professionals

Mira DS from Metrohm Raman is a sophisticated chemical analyzer that replaces the specialist with automation. An analytic chemist in your back pocket. A forensic laboratory in a suitcase. A HazMat team in the trunk of your car. First responders need all the help they can get when faced with...
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New Nova release (Version 2.1.3)

New Nova release (Version 2.1.3)

Nova release 2.1.3 is now available for download What is new in this version: New procedure information command tile Export to RelaxIS possibility Reconfiguration of the OCP command tile with improved functionality Possibility to import a table in the Repeat for multiple values command Control of the light source shutter...
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Simultaneous determination of xanthan gum, optical density, and glucose in aqueous solutions by Vis-NIRS

Simultaneous determination of xanthan gum, optical density, and glucose in aqueous solutions by Vis-NIRS

Xanthan gum is a natural polysaccharide with a wide range of applications in the cosmetic and pharmaceutical industry. As even small amounts in water increases drastically the viscosity of the solution, xanthan gum is used as a natural thickener in different personal care products such as lotions, shampoos, liquid soaps...
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Determination of low water contents in plastics using the KF oven method

Determination of low water contents in plastics using the KF oven method

In many cases it is essential to know the water content of plastics. This is of particular interest in connection with their processing or their use as insulators in electrical engineering. The Application Bulletin 145/3e from Metrohm describes the coulometric determination of water according to the Karl Fischer method, which...
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Higher product yields, less waste: Determination of metal-organic compounds by thermometric titration

Higher product yields, less waste: Determination of metal-organic compounds by thermometric titration

Metal-organic compounds are commonly used in organic chemistry, for example as Grignard reagents or as strong bases (e.g., butyl lithium compounds). The knowledge of the exact content of reactive species allows to better plan the required amounts for reactions preventing the waste of material or too low yields. The strongly...
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Extended setup for real-time determinations of mass transport parameters during oxygen-reduction reactions (ORR)

Extended setup for real-time determinations of mass transport parameters during oxygen-reduction reactions (ORR)

Oxygen-reduction reaction (ORR) is one of the most commonly studied reactions in electrocatalysis, in no small part due to its importance for the commercial development of fuel cells. Depending on conditions, ORR proceeds via various reaction mechanisms, not all of which are suitable for industrial applications. In this Application Note,...
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Galvanostatic charge-discharge of a Li-ion battery with Autolab

Galvanostatic charge-discharge of a Li-ion battery with Autolab

A typical Li-ion battery is usually composed of one or more cells. The name derives from the fact that such batteries exploit the intercalation and de-intercalation of lithium ions into the active materials at the electrodes. Each cell contains a negative electrode, a positive electrode and an electrolyte. Each electrode...
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Arsenic, mercury and copper in the field – White Paper

Heavy metals such as arsenic and mercury find their way into the ground water in many regions of the world, either through natural processes or as the result of human activities. Limit values are exceeded many times over, particularly for arsenic in drinking water, in many areas. This calls for...
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Package for analysis of edible oils and fats

The Oil Titrino plus offers you the complete package for the determination of the acid and base numbers of oil products. In addition to the determination methods described in detail, you also receive the complete accessories for your titrations. The package contains titrator, propeller stirrer and a Solvotrode easyClean, a...
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Metrohm acquires majority of DropSens

The Switzerland-based Metrohm AG is pleased to announce the acquisition of the majority of share in DropSens S.L. The acquisition comes after a longer period of successful cooperation between the two companies in the development of screen-printed electrodes and portable electrochemical instrumentation. With the acquisition of DropSens, Metrohm benefits from...
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MOBILE HEAVY METAL ANALYSIS: 946 PORTABLE VA ANALYZER

Mobile heavy metal analysis: 946 Portable VA Analyzer

Metrohm’s new 946 Portable VA Analyzer is an easy-to-use system for the voltammetric determination of heavy metal traces (arsenic, mercury, and copper) in water. Portable and battery-powered Results in just minutes Predefined methods and low-maintenance sensors Accurate results that meet the requirements of WHO guidelines Complete package in convenient transport...
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CHOOSE THE INSTALLATION PACKAGE YOU NEED

Choose the installation package you need

Metrohm Installation Services ensure a proper installation and commissioning of your new instrument. This ensures that you can rely on the quality of your analytical results from day one. Metrohm Installation Services ensure a proper installation and commissioning of your new instrument in accordance with the supplier’s specifications by trained...
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ANALYTICAL DATA TRANSFER BETWEEN A FOURIER TRANSFORM AND A DISPERSIVE NIR INSTRUMENT

Analytical data transfer between a fourier transform and a dispersive NIR instrument

When replacing an old NIR spectrometer with a new one, users may decide to switch to an instrument with completely different hardware. Reasons for such a change range from insufficient performance of the old hardware to dissatisfaction with the support and service of the former supplier. Transferring the data from...
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METROHM SITE «IC MAINTENANCE» FOR ION CHROMATOGRAPHY

Metrohm site «IC Maintenance» for Ion Chromatography

«IC Maintenance» for ion chromatography: This Metrohm microsite shows you how to carry out essential maintenance work on your ion chromatography system. Short videos guide you step by step how to perform maintenance work correctly on ion chromatographs. «IC Maintenance» starts with IC handling in general (cutting capillaries, PEEK pressure...
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NEW AND UNIQUE RAMAN SPECTROELECTROCHEMISTRY IN ONE BOX

New and unique RAMAN spectroelectrochemistry in one box

SPELEC RAMAN is the world's only equipment in the market for performing RAMAN spectroelectrochemistry studies combining in only one box a light source, a bipotentiostat / galvanostat and a spectrometer. All the components are perfectly fitted and synchronized, thus offering for first time in the market a fully integrated synchronized Raman spectroelectrochemical instrument. The...
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202X Series

Is it time to move your titration, pH or photometry online?

Online wet chemical analysis has never been easier with the new compact 202X Process Analyzers. Metrohm Process Analytics instruments ensure reliable process monitoring and control day and night, saving you time and money. Three versions are available: The 2026 Titrolyzer: for titration or ISE measurements in up to 2 sample...
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