Two separate research groups claimed to have made a 12-membered nitrogen-containing ring of a class of molecules called annulenes.
Two separate research groups claimed to have made a 12-membered nitrogen-containing ring of a class of molecules called annulenes. Both groups claimed that the chunky compound had special properties that could prove useful as a surfactant. One of these groups made this claim and the other just recently. However, both have been found to have been beaten to the punch: a German chemist, Theodor Zincke, made this discovery more than a century ago.
LCGC’s Year in Review: Highlights in Liquid Chromatography
December 20th 2024This collection of technical articles, interviews, and news pieces delves into the latest innovations in LC methods, including advance in high performance liquid chromatography (HPLC), ultrahigh-pressure liquid chromatography (UHPLC), liquid chromatography–mass spectrometry (LC–MS), and multidimensional LC.
Using LC-MS/MS to Measure Testosterone in Dried Blood Spots
December 19th 2024Testosterone measurements are typically performed using serum or plasma, but this presents several logistical challenges, especially for sample collection, storage, and transport. In a recently published article, Yehudah Gruenstein of the University of Miami explored key insights gained from dried blood spot assay validation for testosterone measurement.