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Best practice for separation columns in ion chromatography (IC) – Part 2
The second part of this blog series about best practice for IC separation columns focuses on application related topics that have an impact on the column suitability and stability. First, there is the proper choice of the column that best suits the intended...
Best practice for electrodes in Karl Fischer titration
Have you ever asked yourself why you need an electrode for the endpoint detection in Karl Fischer (KF) titration? Theoretically, the endpoint of a Karl Fischer titration could be determined based on the color change of the reagent. However, if accuracy and...
NIR spectroscopy in the petrochemical and refinery industry: The ASTM compliant tool for QC and product screening – Part 2
Differences between gasoline, diesel, and jet fuel Gasoline is a fuel made from crude oil and other petroleum-based liquids, containing carbon numbers generally between 4 and 12, and exhibiting boiling points of up to 120 °C. Gasoline is primarily used as a fuel...
Staircase or linear scans: two options for reliable electrochemical experiments
Electrochemical experiments are performed by delivering and controlling a potential or current signal to the electrochemical cell/device under test and measuring its response through a potentiostat/galvanostat (PGSTAT). Here, two different options for performing...
Coffee: serving up chemistry in every cup
International Coffee Day is October 1st, not that many of us need a day to celebrate the drink we enjoy all year round. What makes a high quality cup of coffee? There are several factors at hand from the origin of the beans and the climate they grow in, to how the...
Frequently asked questions for beverage analysis with ion chromatography
A brief overview of beverage analysis with ion chromatography The analysis of beverages is extremely important for the general health of the population. Why is this so? Our bodies are composed of about 60% water, depending on several factors like weight and sex....
Spectroelectrochemistry: shedding light on the unknown
The combination of two well-known analytical techniques, electrochemistry and spectroscopy, gives rise to spectroelectrochemistry (SEC), an established scientific methodology. This hybrid technology combines the advantages of each technique, offering the best of both...
NIR spectroscopy in the petrochemical and refinery industry: The ASTM compliant tool for QC and product screening – Part 1
Introduction to the petrochemical and refining industry Oil and gas for fuel are produced in nearly every corner of the globe, from small private wells generating around 100 barrels a day, to the large bore wells producing upwards of 40 times that volume. Despite this...
Best practice for separation columns in ion chromatography (IC) – Part 1
The high performance ion chromatography (IC) separation column is often referred to as the «heart» of the ion chromatograph. The reason for this denomination is straightforward: the column is responsible for the separation of the analytes of interest from each other...
Does counter electrode (CE) size matter?
To begin, let’s go back to the year 1950 when metallurgists and chemists tried to shine a light on a fascinating electrochemical phenomenon originally discovered in the 17th century by the chemist Sir Humphry Davy [1].Sir Humphry Davy (1778–1829) was credited with...