Acylation with long-chain fatty acids is a common modification at the N-terminal glycine residues of natural proteins. In this work, we performed HPLC analysis of myristoylglycine (Myr-Gly-OH), palmitoylglycine (Pal-Gly-OH) or lauroylglycine (Lau-Gly-OH), which were produced in the hydrolysates of synthetic Myr-Gly-, Pal-Gly-, or Lau-Gly-peptides, respectively, by means of a mild acid hydrolysi...

Atmospheric molecular cluster formation is the first stage toward aerosol particle formation. Despite intensive progress in recent years, relative role of different vapors and mechanisms for forming clusters still not well-understood. Quantum chemical (QC) methods can give insight into thereby yield information about potentially relevant compounds. Here, we summarize QC literature on clustering...

This study explored the potential for an environmentally friendly method refining difficult-to-solubilise noble metals (notably platinum). Conventional noble-metal processes rely on use of strong inorganic acids and oxidants, which cause significant environmental impact. To overcome these challenges, we propose a non-aqueous direct leaching process using ionic liquid, organic acid, chlorinating...

An ice core extracted from Holtedahlfonna ice cap, western Spitsbergen, record spanning the period 1700–2005, was analyzed for major ions. The leading empirical orthogonal function (EOF) component is correlated with an index of summer melt (log([Na]/[Mg]) from 1850 and shows that almost 50% of the variance can be attributed to seasonal melting since the beginning of the industrial revolution. T...

[1] Our understanding of past sea-ice variability is limited by the short length of satellite and instrumental records. Proxy records can extend these observations but require further development and validation. We compare methanesulfonic acid (MSA) and chloride (Cl) concentrations from a new firn core from coastal West Antarctica with satellite-derived observations of regional sea-ice concentr...