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PetroChemist
When inline pH measurements fail…

When inline pH measurements fail…

The 2026 Titrolyzer is the ideal solution in industries such as chemical, petrochemical, semiconductor, environmental, mining, steel/metal, and potable water. When inline pH measurements fail… The 2026 Titrolyzer configured for pH measurements is the perfect instrument for situations where inline pH measurements fail. Temperature, pressure changes, streaming potential effects and...
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Flow accelerated corrosion (FAC) in power plants: Continuous online ultratrace analysis of Fe and Cu

Flow accelerated corrosion (FAC) in power plants: Continuous online ultratrace analysis of Fe and Cu

Monitoring flow accelerated corrosion and metal transportation in power plants: Online ultratrace measurements of Fe and Cu In power plants, corrosion is the primary factor leading to costly and critical downtimes. The water-steam circuits in fossil and nuclear power plants are inherently prone to corrosion, as metal components are constantly...
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Fully automatic determination of the total content of Ba, Ca, Mg, Pb, and Zn in unused lubricating oils

Total content of Ba, Ca, Mg, Pb, and Zn in unused lubricating oils

This Application Note describes the determination of total content of Ba, Ca, Mg, Pb and Zn in unused lubricating oil by means of the Optrode (610 nm). An excess of EDTA is first added to the metals. Afterwards, the excess EDTA is titrated back with magnesium chloride solution up to...
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Determination of the oxidative stability of biodiesel (fatty acid methyl esters, FAME)

Determination of the oxidative stability of biodiesel (fatty acid methyl esters, FAME)

The article describes the influence of method parameters such as temperature, sample size and gas flow on the determined induction time. Fatty acid methyl esters (FAME) Biodiesel (fatty acid methyl esters, FAME) has become an important renewable fuel source for diesel-powered vehicles. Like edible oils, biodiesel is oxidized by ambient...
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Determination of water in gases and liquefied gases with the 875 KF Gas Analyzer

Determination of water in gases and liquefied gases with the 875 KF Gas Analyzer

This Metrohm Application Bulletin provides general information on the 875 KF Gas Analyzer and on water determinations in gases. Additionally, it includes useful data that show the stability of hard and software, the robustness of the system, and the good repeatability. The 875 KF Gas Analyzer is a tiamo™ controlled...
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Coolant analysis, fast, reliable, robust

Coolant analysis, fast, reliable, robust

Anions and organic acid analysis in engine coolant, a reliable analysis for engine performance. In heavy machinery, engine fluids, including coolants, are a key ingredient to smooth operation. Poor quality coolant can lead to breakdowns, frequent maintenance requirements with long down time for machinery. On the other hand, hundreds of...
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Acid number in raw oils and petroleum products through thermometric titration in accordance with ASTM D8045

Acid number in raw oils and petroleum products through thermometric titration in accordance with ASTM D8045

Corrosion is an omnipresent disruption factor in refinery processes and one that can soon result in astronomical production costs. The potential for corrosion can however be conveniently controlled by monitoring the acid number (also referred to as the acid value) in refinery processes. An outstanding method for making this determination...
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Determination of the pHe value of denatured ethanol fuel in accordance with ASTM D6423

Determination of the pHe value of denatured ethanol fuel in accordance with ASTM D6423

The pHe value is a measure of the acidity of alcohol-based fuels. In ethanol, pHe is an important parameter for fuel quality specification with respect to the risk of motor damage. This Application Note describes pHe determination in a denatured ethanol mixture in accordance with ASTM D6423. Determination is implemented...
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Moisture analysis of ethanol-hydrocarbon blends by Vis-NIR spectroscopy

Moisture analysis of ethanol-hydrocarbon blends by Vis-NIR spectroscopy

Metrohm’s Application Note shows that visible near-infrared spectroscopy (Vis-NIRS) can determine water content in ethanol-hydrocarbon blends. Vis-NIRS is a fast alternative to conventional lab methods: it accelerates raw material inspection, process monitoring, and final product control. Water damages both fuel tanks and engine parts. Rust and corrosion in the tank...
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Anions in an E85 mixture (85% Ethanol and 15% gasoline) by means of Inline Matrix Elimination

Anions in an E85 mixture (85% Ethanol and 15% gasoline) by means of Inline Matrix Elimination

Determination of fluoride, acetate, formate, chloride, nitrite, nitrate, phosphate and sulfate in an E85 mixture (85% ethanol and 15% gasoline) by means of anion chromatography with conductivity detection and sequential suppression. The Inline Matrix Elimination serves as sample preparation.
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Special Promotion: Upgrade your Titrino Plus, Coulometer or Compact Titrosampler and save

Special Promotion: Upgrade your Titrino Plus, Coulometer or Compact Titrosampler and save

We are now offering 3 amazing instrument packages with huge savings for a limited time to our select customers. Package 1: Metrohm Titrino Plus Series Promotion Package THB 199,000. Package 2: Metrohm Coulometer Promotion Package THB 153,000. Package 3: Metrohm Compact Titrosampler Promotion Package THB 369,000. Download the flyers (English...
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OMNIS – Metrohm makes titration faster, safer, and easier

OMNIS – Metrohm makes titration faster, safer, and easier

The new titration platform is modular and can be expanded from a simple stand-alone titrator to a powerful robotic system performing 4 analyses simultaneously processing up to 175 samples completely unattended.
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Anions in a gasoline-bioethanol mixture by IC

Anions in a gasoline-bioethanol mixture by IC

Bioethanol is either used in pure form as a fuel or blended with fossil fuels. Contaminants in the form of inorganic chloride and sulfate salts are corrosive and lead to deposits and blockages in the fuel filter and injection nozzles. The international ethanol specifications EN 15376, ASTM D4806, and ASTM...
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Purity of sulfanilamide

Scientists at Metrohm develop and research continuously new solutions and methods for all kinds of analyses. The goal is to provide the highest accuracy and reliability of the results. These solutions are then published as application notes, bulletins or white papers on our website - accessible to everyone. Here we...
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Attend our free webinars on IC and NIR

Inline Sample Preparation in IC Learn how inline sample preparation can help you to deal with matrix components that interfere with your ion chromatography analyses. In addition, inline sample preparation can make your analyses faster, more cost-effective, and more accurate. Metrohm presents a IC webinar hosted by G.I.T. Laboratory Journal...
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Anions in a gasoline/bioethanol mixture using inline matrix elimination

Scientists at Metrohm develop and research continuously new solutions and methods for all kinds of analyses. The goal is to provide the highest accuracy and reliability of the results. These solutions are then published as application notes, bulletins or white papers on our website - accessible to everyone. Today we...
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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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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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POTENTIOMETRIC DETERMINATION OF HYDROGEN SULFIDE, CARBONYL SULFIDE AND MERCAPTANS

Potentiometric determination of hydrogen sulfide, carbonyl sulfide and mercaptans

This Metrohm application bulletin describes the potentiometric determination of hydrogen sulfide, carbonyl sulfide, and mercaptans in gaseous and liquid products of the oil industry (natural gas, liquefied petroleum gas, used absorption solutions, distillate fuels, aviation gasoline, gasoline, kerosene, etc.,).
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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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