Dan discusses how to choose an appropriate solvent for sample preparation and GC (Gas Chromatography). Choosing the right solvent can be the difference between accurate quantitation of your analytes of interest and inaccurate quantitation, either because of poor extraction of the analytes from the sample or from poor chromatography.
While cold and flu season are over for now, allergy season is here. When my allergies are in full force I get quite a tickle in my throat that causes me to cough quite frequently. To deal with this I like to keep cough drops on hand to help ease the cough.…
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Watch as Dan demonstrates how to use standards to quantify the amount of a certain substance in a material.
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Listen in as Prof Dan shows you what to do when peaks are coming out too close together in Gas Chromatography (GC) or Liquid Chromatography (HPLC). He gives some simple tips that can help better separate the peaks so you can better identify and quantify different compounds present in a sample.
Tis the season for spraying DEET in our faces to make sure we don’t get eaten alive by bugs! DEET, or N,N-diethyl-meta-toluamide, is one of the most widely used active ingredients in bug sprays. It was developed by the US Army for this purpose in 1946 and made available to the public in 1957. There…
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While eating breakfast with my kid, they asked me about the dyes in the cereal. That got me thinking about the different dyes in food and how these dyes were analyzed. I thought that a UV-Vis instrument would be the best choice. But, what about an HPLC with a UV detector? I figured a UV…
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Look at what we caught these chemists doing in and out of the lab. Although comical, we’ve all seen some of this happen before…
Sometimes there’s a wrong way to do things and a right way to do things. In the case of preparing samples that are in tablet form, there’s a correct way and an incorrect way. Take a look at this video to see what we’re talking about. HR Rick is less than happy about it being…
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Amino acids are the building blocks of life. Every living thing uses amino acids to build the proteins needed to do various functions within the organism. Where do amino acids come from and how many are needed to function? For humans, there are a total of 20 amino acids that are necessary for your body…
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