Analyze This
Fast determination of acid and base number by thermometric titration
Acid number (AN) and base number (BN) are critical parameters in the quality control of petroleum products as they are often stipulated by product specifications. Traditionally both parameters can be determined by potentiometric or photometric titration according to...
History of Metrohm IC – Part 5
In the fifth part in our ongoing series about the history of ion chromatography development at Metrohm, we now focus on automated air quality monitoring with the 2060 MARGA instrument.Did you miss the other parts in this series? Find them here!The importance of clean...
Introduction to Analytical Instrument Qualification – Part 2
Welcome back to our blog, and happy 2021! We hope that you and your families had a safe and restful holiday season. To start the year, we will conclude our introduction to Analytical Instrument Qualification. Did you miss Part 1? Click here to read it first!Metrohm’s...
«Analyze This»: 2020 in review
I wanted to end 2020 by thanking all of you for making «Analyze This» – the Metrohm blog for chemists such a success! For our 60th blog post, I’d like to look back and focus on the wealth of interesting topics we have published this year. There is truly something for...
Introduction to Analytical Instrument Qualification – Part 1
When talking about the subject of Analytical Instrument Qualification (AIQ), my first thought is of regulated industries, like pharmaceuticals and food. You may be wondering—Why do we need to qualify analytical instruments in this environment? Why does my titrando or...
Electrochemistry in orbit
For over twenty years now, there has been continuous human occupation off our planet. The International Space Station (ISS), launched in 1998, is a modular satellite in low orbit around the Earth, which is visible even with the naked eye. Since November 2, 2000, the...
Trace metal analysis with solid-state electrodes – Part 5
In the last part of our series of articles about trace metal analysis using solid-state electrodes, we will have a look at the glassy carbon rotating disc electrode (GC RDE) and its application possibilities.Did you read the other parts in this series? Find them...
Real World Raman: Mira DS in Action – Detecting drugs safely in the field
Methamphetamine (meth, Figure 1) abuse is one of the top drug problems impacting the social, economic, and health welfare of many developed and developing countries. Short-term use of meth, a powerful stimulant, provides a euphoric sense of alertness and enhanced...
History of Metrohm IC – Part 4
In the fourth installment in our series about the history of ion chromatography development at Metrohm over the years, we now focus on some of our combined analysis techniques. These are unique combinations of Metrohm instruments from different product groups which...
Frequently asked questions in near-infrared spectroscopy analysis – Part 2
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...