Researchers Pinpoint Seaweed's Contribution to Atmospheric Iodine
Frithjof K?pper of the Scottish Association for Marine Science and colleagues report that the accumulated form of iodine is iodide and that it serves as an antioxidant, protecting the surface of the seaweed.
Frithjof Kpper of the Scottish Association for Marine Science and colleagues report that the accumulated form of iodine is iodide and that it serves as an antioxidant, protecting the surface of the seaweed.
Using an interdisciplinary array of techniques (including synchrotron X-ray absorption spectroscopy, voltammetry, ion chromatography and enzymatic assays), the researchers found that the iodine in kelp is present as iodide ions.
Then, using GC-MS, aerosol particle counting, and spectrophotometry, the team showed that on the seaweed surface and in the apoplast iodide acts as an antioxidant, detoxifying both aqueous oxidants and ozone. The latter releases molecular iodine into the atmosphere - which gives the seaside its characteristic smell - and leads to the formation of particles that can act as cloud condensation nuclei.
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.
