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Oven method for sample preparation in Karl Fischer titration
Maybe you have experienced one of the following situations in the laboratory. You need to determine the water content of a sample using Karl Fischer titration and you realize one or more of these issues: The sample does not dissolve in the KF reagent. No solubilizer...
Fresh shrimp – made in Switzerland?
Shrimp from Rheinfelden SwissShrimp AG, based in Rheinfelden, Switzerland, is the largest producer of shrimp in Europe. Michael Siragusa, a chemist and Technical Operations Manager, introduced us to the company during a visit and explained why a fully automatic IC...
Frequently asked questions in near-infrared spectroscopy analysis – Part 1
Whether you are new to the technique, a seasoned veteran, or merely just curious about near-infrared spectroscopy (NIRS), Metrohm is here to help you to learn all about how to perform the best analysis possible with your instruments. In this series, we will cover...
Exposing secrets of ancient Greek civilization through chemistry
This week, learn the story of how analytical instrumentation from Metrohm helps underwater archaeology locate hidden treasures beneath the seafloor. Antikythera Mechanism: a machine lost to time One of the most fascinating items ever salvaged from an ancient...
History of Metrohm IC – Part 3
Part 3 of this series on the history of ion chromatography development at Metrohm focuses on the near past, from the mid 2000s until a few years ago. Here, sequential suppression was introduced, making analysis even more sensitive with the removal of baseline...
Trace metal analysis with solid-state electrodes – Part 3
In Part 2 of this series on trace metal analysis with solid-state electrodes, we introduced the scTRACE Gold electrode. The third part of this series explains even more applications which can be performed with this electrode, but this time after modifying the gold...
Forewarned is Forearmed: Error and risk minimization in process analysis – Part 3
In the course of life, each of us learns to trust our gut feelings or our experiences to avoid situations that seem dangerous or risky. You quite literally sense potential dangers with an uneasy feeling. Who hasn't painfully learned that touching a hot stove top isn't...
History of Metrohm IC – Part 2
In the second part of our series behind the development of high quality ion chromatography instrumentation at Metrohm, I will cover the mid 1990s until the mid 2000s. During this time, Metrohm focused on modular IC, lowering background suppression, as well as bringing...
Frequently asked questions in Karl Fischer titration – Part 2
Since I started working at Metrohm more than 15 years ago, I have received many questions about Karl Fischer titration. Some of those questions have been asked repeatedly from several people in different locations around the world. Therefore, I have chosen 20 of the...
Trace metal analysis with solid-state electrodes – Part 2
In the second part of our series on «heavy metal» analysis with solid-state electrodes, the focus lies on the scTRACE Gold electrode. Gold electrodes have been used in electrochemistry for decades. However, the scTRACE Gold has a very special design. Originally...