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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...
From corn to ethanol: improving the fermentation process with NIRS
The production of biofuels from renewable feedstock has grown immensely in the past several years. Bioethanol is one of the most interesting alternatives for fossil fuels, since it can be produced from (renewable) raw materials rich in sugars and starch. Fermenting...
Chemical analysis of sourdough: pH and total titratable acidity (TTA)
Like many, I am fascinated by the chemistry behind baking, and in this blog I want to talk about bread—sourdough in particular. There is a well-known saying in the baking industry: «The pH value bakes and the total titratable acidity tastes». Why are these two...
NIR spectroscopy in the polymer industry: The ideal tool for QC and product screening – Part 5
The history of polyurethanesIn 1937, the German chemist Dr. Otto Bayer (1902–1982) invented the versatile class of plastics we call polyurethanes. Polyurethanes are available in myriad forms—they are used in numerous products, from coatings and adhesives to shoe...
Fast and fundamental: influences on reliable electrochemical measurements
The ultimate goal of any researcher is to contribute to the progress of society by pioneering exploration beyond the known limits. Depending on the research type and application field, one way to fulfill this is to collect reliable experimental data on rapidly...
Nonaqueous acid-base titrations – Common mistakes and how to avoid them
Nonaqueous acid-base titrations are widely used in several industries, including the petrochemical and pharmaceutical sectors. Whether you are determining the acid or base number (AN or BN) in oils or fats, titrating substances that are insoluble in water, or...