Applications

The present article addresses the theory, practical aspects and troubleshooting of potentiometry.

Near-Infrared spectroscopy (NIRS) is a widely used analytical technique for quantitative analysis of various products in research and industrial applications. This white paper summarizes the workflow of the development of quantitative methods according to ASTM E1655.

Quality control is impacted by multiple challenges, which can have an influence on the functioning of the QC lab. The present White Paper provides approaches, how to simplify the daily quality control using near-infrared spectroscopy combined with a dedicated smart software like Vision Air.

Knowledge of the water content in lubricating oils, additives, and similar products is important in the manufacturing, purchase, sale, or transfer of petroleum products to help estimate their quality and performance characteristics. Monitoring the water content in such products can prevent damage to infrastructure and ensure safe operation by avoiding corrosion processes and subsequent engine wear. This White Paper explains the easy determination of moisture in petroleum samples by coulometric Karl Fischer titration according to the three procedures outlined in ASTM Method D6304. A comparison is given between the procedures to determine which is most suitable for different sample types.

This white paper presents six technical tips that you should consider before taking a pH measurement.

This article describes a simple method for the determination of seven standard anions (fluoride, chloride, nitrite, bromide, nitrate, phosphate and sulfate) in accordance with US EPA Method 300 Part A. An IC system is extended to include Inline Ultrafiltration and Inline Eluent Preparation for the analysis.

More strict regulations paired with more complex products have increased testing complexity in the paint and coating industry. Therefore, producers ask for more powerful, safe and sustainable analytical methods. Testing by Vis-NIR spectroscopy is a sustainable and costefficient alternative to many wet chemical methods. This white paper describes how Vis-NIR spectroscopy improves testing procedures for various analyses during the formulation and production of paint and coatings in an economic and ecological way.Key words: testing, sustainable, VOC, paint, coating, binders, resins, additives, pigments, solvents

The pharmaceutical industry is very likely more comprehensively regulated that any other branch of industry. It therefore requires analytic methods that meet the requirements of regulations while at the same time being practical. This applies in particular for large sample quantities, such as are encountered with incoming goods inspections, for example. It is here that particularly rapid and simple analysis methods are called for which make routine analyses simpler and more efficient. This White Paper describes some of the most important regulations in the pharmaceutical analysis and shows how Vis-NIR spectroscopy can solve analytic problems in the pharmaceutical industry in accordance with regulations.

Metrohm has shaped moisture analysis for more than half a century. Find out about new developments in water analysis and learn how near-infrared spectroscopy in combination with Karl Fischer titration can increase your sample throughput and boost your productivity.

Surface Enhanced Raman Scattering or SERS is an anomalous enhancement of Raman scattering when molecules are adsorbed to gold or silver nanoparticles – this enhancement can be as large as 107. The advantage of SERS for the analytical chemist lies in its ability to detect analyte concentrations of parts per million and even parts per billion levels, while classical Raman is limited to parts per thousand. Metrohm Raman produces P-SERS assays in the form of nanoparticles printed onto substrates using inkjet technology. This method produces inexpensive test strips that exhibit exceptional stability and sensitivity. There are two markets that can be easily addressed with P-SERS: forensic analysisand food safety. This white paper explains the mechanism of SERS and how it can be applied to handheld Raman analysis with Metrohm Raman Mira systems.