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Determination of hexavalent chromium in drinking water according to EPA Method 218.7

Determination of hexavalent chromium in drinking water according to EPA Method 218.7

Chromium(VI) is movie material. Remember the movie “Erin Brockovich”? With Metrohm you don’t need to worry – Track it down using ion chromatography. The movie “Erin Bronkovitch” is based on a true story and tells the eponymous protagonist`s fight against a U.S. energy corporation that had poisoned the local water...
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The Aquatrode — pH stability in low ionic strength samples

The Aquatrode — pH stability in low ionic strength samples

Rapid response times and highest precision in poorly buffered solutions, The Aquatrode Plus with inbuilt Pt 1000 temperature probe. pH is a universal measurement in any laboratory, and in most cases a stable pH measurement, given correct maintenance, can be assured. However poorly buffered solutions can prove difficult, leading to...
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Acid and anion determination in wine via Ion Chromatography

Acid and anion determination in wine via Ion Chromatography

The graphic illustrates the chromatogram of a wine sample containing different ions and organic acids. Acids are a key component of wine. They preserve the wine and lend it expression and character. Wines contain a number of different types of acids. Tartaric, malic, and lactic acids are particularly important, just...
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Multimedia Guide to Care and Maintenance of Electrodes

Order the free Metrohm DVD on care and maintenance of electrodes to get the most out of your investment. The Metrohm Care and Maintenance of electrodes DVD is a great tool to help you look after and maintain a critical part of your measurement, the sensor. Combining video streams and...
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Thermometric titration for Pb using EDTA Back titration

Thermometric titration for Pb using EDTA Back titration

The Metrohm 859 Titrotherm, easy and fast for Pb analysis, but not only. Pb analysis by EDTA titration can lead to variable results due to different operators picking the indicator endpoint differently. Metrohm has simplified your task and optimised usability with it’s 859 Titrotherm – and you will not have...
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Visit Metrohm’s Thermometric Titration page: Thermometric titrator – can you feel the heat?

Retsch Proppants: Size and shape analysis 10 to 15 times faster!

Shape can be analysed with the CAMSIZER in an objective, comparable and reproducible way, totally independent of the operator. “Having the CAMSIZER allows us to move in one tenth or one fifteenth of the time we could without it. All the forward thinking Frac sand companies that are focused on...
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At-line and on-line monitoring of foodstuff production

At-line and on-line monitoring of foodstuff production

Potato chips need to be treated to improve product quality. The potato slices are immersed in a solution that has been adjusted for pH, hardness, and mineral content. Metrohm Applikon monitors the solution on-line: Cl- ANALYSIS Cl- measuring range: 0,1 – 0,6 wt-% as Cl Detection limit appr. 0,04% Inaccuracy...
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The revolution in ultra-fine grinding

The novel size reduction mechanism of the Emax unites the advantages of different mill types: high-frequency impact, intensive friction and controlled circular jar movement. The Emax is an entirely new type of ball mill which was specifically designed for high energy milling. The impressive speed of 2,000 rpm, unrivalled in...
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Analysing powders and liquids at-line

Analysing powders and liquids at-line

Click to see the video. Lufthansa Technik AG’s center for surface finishing in Hamburg monitors process baths using at-line system from Metrohm. Lufthansa Technik AG is one of the world’s largest providers of repair and maintenance services for airplane parts and components. At their facility centre for surface finishing in...
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On-line Near Infrared Spectroscopy in the Petrochemical Industry

On-line Near Infrared Spectroscopy in the Petrochemical Industry

Crucial properties can be measured in less than one minute by NIR on-line. In petrochemistry, monitoring of the blending process by NIR has proven huge economical savings, since crucial properties such as water content, density, viscosity, additive content, and hydroxyl number can be measured in less than one minute. Gasoline...
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Online phosphate and total phosphorous compounds for waste water treatment plants

Online phosphate and total phosphorous compounds for waste water treatment plants

Metrohm Process Analytics turnkey solutions come with our application guarantee and excellent after sales support and service. Online Phosphate Phosphate concentration from waste water (effluent and influent) is very commonly measured by so called “molybdenum blue’ Method. Ammonium molybdate and potassium antimonyl tartrate react in acid medium with orthophosphate to form...
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Continuous monitoring of SO2 in ambient air

Continuous monitoring of SO2 in ambient air

This graph shows the daily fluctuations due to human activity and traffic. The Metrohm 920 absorber module in combination with the 930 Compact IC Flex allows us to determine gaseous sulphite in air continuously. Air is sampled through a vacuum pump into the absorption vessel of the 920 Absorber Module...
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