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#chromatography

1 post1 participant0 posts today
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Nina Davtian

My first first-authored as a former at ICTA-UAB, published in of A one year and a half ago, deserves a on as well!
We selectively extract and its isomers from complex matrices, such as , for quantification by liquid chromatography-electrospray ionization-tandem mass spectrometry (LC-ESI-MS/MS)!


doi.org/10.1016/j.chroma.2023. (1/28)

doi.orgSelective extraction of levoglucosan and its isomers from complex matrices using ligand exchange-solid phase extraction for analysis by liquid chromatography-electrospray ionization-tandem mass spectrometryThe analysis of trace quantities of monosaccharide anhydrides (MAs) in sediments is complicated by the lack of fast and reliable technologies to selec…
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Sunnie

This was my first time working with ube extract, and DANG is that stuff strong!

I was incredibly amused to find that when I wiped up some spilled extract with a damp paper towel, it did the same kind of chromatography as my fountain pen inks.

It's so pretty! I couldn't quite get it to show up right but I did my best to tweak it a little - the actual color is that vibrant shade of purple the camera can never quite capture.

2/2

A white paper towel with a large splotch of maroon edged with fading pink and vibrant blues around the edges
A folded white paper towel on a cutting board, with a large splotch of maroon edged with fading pink and vibrant blues around the edges
#ube#chromatography#CrepeCake
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C. Anthony Lewis

@FaithfullJohn I, very successfully, used the cut and weigh method to quantify chromatographic peaks. In an attempt to increase the mass of each peak (and therefore, I reasoned, precision) I tried photocopying onto OHP sheets but quickly found the precision was worse... I figured the thickness of the OHP sheets was less consistent than paper. But this was 40 years ago...
#chromatography #ChemicalAnalysis #quantification

Public
Eric R. Scott

I spent SO MANY HOURS in grad school manually adjusting peak baselines and deciding what should or shouldn't count as a peak and then going back and doing it all again because I called it a peak in one sample but not the other. I'm SO happy that progress is being made on this problem and very excited to read this preprint!

biorxiv.org/content/10.1101/20

#GCMS #LCMS #XCMS #AnalyticalChemistry #Chromatography
#Metabolomics

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