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RSS International Journal of Mass Spectrometry

  • Sulfuric acid and aromatic carboxylate clusters H<sub>2</sub>SO<sub>4</sub>·ArCOO<sup>−</sup>: Structures, properties, and their relevance to the initial aerosol nucleation
  • Fuzzy-precise positioning: A pre-search algorithm based on feature peaks of mass spectra for acceleration of chemical compound recognition
  • A comparative assessment of water-soluble selenium metabolites in commercial selenised yeast supplements by liquid chromatography-electrospray ionisation QTOF-MS
  • Experimental characterisation of atmospheric pressure electron gun
  • High resolution/accurate mass tandem MS of isotopically complex cluster ions from the artists’ pigment lead white

RSS European Journal of Mass Spectrometry

  • Publisher’s note
  • Thermal desorption combined with atmospheric pressure photo ionization for the analysis of ...
  • Atmospheric pressure thermal ionization ion source for peptide analysis
  • Metal ion hydrocarbon bidentate bonding in alkyl acetates, methyl alkanoates, alcohols and ...
  • Rapid identification of triphenylmethane dyes by ion mobility time-of-flight mass spectrometry

RSS Journal of Mass Spectrometry

  • Deep‐ultraviolet laser ablation electrospray ionization mass spectrometry
    A 193‐nm wavelength deep ultraviolet laser was used for ambient laser ablation electrospray ionization mass spectrometry of biological samples. A pulsed ArF excimer laser was used to ablate solid samples, and the resulting plume of the desorbed material merged with charged electrospray droplets to form ions that were detected with a quadrupole time‐of‐flight mass spectrometer. […]
  • Energy‐resolved mass spectrometry for differentiation of the fluorine substitution position on the phenyl ring of fluoromethcathinones
    A reliable method for structural analysis is crucial for the forensic investigation of new psychoactive substances (NPSs). Towards this end, mass spectrometry is one of the most efficient and facile methods for the identification of NPSs. However, the differentiation among 2‐, 3‐, and 4‐fluoromethcathinones (o‐, m‐, and p‐FMCs), which are ring‐fluorinated positional isomers part of […]
  • Challenges in the identification process of phenidate analogues in LC‐ESI‐MS/MS analysis: Information enhancement by derivatization with isobutyl chloroformate
    A new analytical technique for the structural elucidation of four representative phenidate analogues possessing a secondary amine residue, which leads to a major/single amine‐representative fragment/product ion at m/z 84 both in their GC‐EI‐MS and LC‐ESI‐MS/MS spectra, making their identification ambiguous, was developed. The method is based on “in vial” chemical derivatization with isobutyl chloroformate in […]
  • LC‐DAD‐ESI‐MS/MS–based phenolic profiling and antioxidant activity in Turkish cv. Nizip Yaglik olive oils from different maturity olives
    The current study was designed to find out how olive maturity indices (2.5, 3.5, and 4.5) affect the individual phenolic compounds and antioxidant potencies of olive oils produced from cv. Nizip Yaglik olives. Liquid chromatography coupled to diode array detection and electrospray ionization tandem mass spectrometry in multiple reaction monitoring mode was utilized for the […]
  • Study of the cyanoacrylate fuming mechanism by matrix‐assisted laser desorption/ionization mass spectrometry
    Despite cyanoacrylate fuming being widely used in the forensic science field, its mechanism is not well understood. In this study, matrix‐assisted laser desorption/ionization (MALDI) mass spectrometry is used to study latent fingerprints that have been cyanoacrylate fumed in an attempt to gain insight into the fuming mechanism. In the negative mode mass spectrometry data, four […]

RSS Journal of the American Society for Mass Spectrometry

  • Top-Down Analysis of Proteins in Low Charge States February 22, 2019
  • Online Sol-gel Capillary Microextraction-Mass Spectrometry (CME-MS) Analysis of Illicit Drugs February 22, 2019
  • Capillary Vibrating Sharp-Edge Spray Ionization (cVSSI) for Voltage-Free Liquid Chromatography-Mass Spectrometry February 21, 2019
  • The Ion Source of Nitrogen Direct Analysis in Real-Time Mass Spectrometry as a Highly Efficient Reactor: Generation of Reactive Oxygen Species February 19, 2019
  • Addition of Serine Enhances Protein Analysis by DESI-MS February 15, 2019

RSS Mass Spectrometry Reviews

RSS Rapid Communications in Mass Spectrometry

  • Rapid screening methods for yeast sub‐metabolome analysis on a high‐resolution IM‐QTOF mass spectrometer
    Rationale The wide chemical diversity and complex matrices inherent to metabolomics still poses a challenge to current analytical approaches for metabolite screening. Although dedicated front‐end separation techniques combined with HRMS set the benchmark from an analytical point of view, the increasing number of samples and sample complexity demand for a compromise in terms of selectivity, […]
  • Supercharging and Multiple Reaction Monitoring of High Molecular Weight Intact Proteins using Triple Quadrupole Mass Spectrometry
    Rationale Different supercharging agents were tested to study their effect on the intensity and charge state distributions of high molecular weight intact proteins. The goal of this work was to increase chargeability and ionization efficiency for proteins ranging from 66 – 150 kDa, to enable subsequent optimization of multiple reaction monitoring (MRM) mode transitions on […]
  • Multiple isotope tracers in fur keratin discriminate between mothers and offspring
    Rationale Isoscape origin models for mammals may be impaired by fractionation and routing of isotopes during lactation. Here, we tested if the stable carbon, nitrogen and hydrogen ratios of juvenile bats differ from those of their mothers and if derived isotopic dietary niches and geographical assignments vary accordingly between mothers and juveniles. Methods During the […]
  • Stable Isotope Measurements to Differentiate Sources of Monofluoroacetate in a Blackmail Case
    Rationale Stable isotope ratios can provide a ‘fingerprint' to enable differentiation of sources of monofluoroacetate (MFA) hence providing a means to eliminate potential sources of MFA in a blackmail case involving the contamination of milk. Methods The stable isotopic composition (δ2H, δ13C and δ18O values) of a library of 43 samples of MFA was determined […]
  • Investigations into the performance of travelling wave enabled conventional and cyclic ion mobility systems to characterise protomers of fluoroquinolone antibiotic residues
    Rationale Fluoroquinolones (FLQs) have been shown to form protomers with distinctive fragment profiles. Experimental parameters affect protomer formation, impacting observed conventional tandem mass spectrometric (MS/MS) dissociation and multiple reaction monitoring (MRM) transition reproducibility. Collision cross section (CCS) measurement can provide an additional identification metric and improved ion mobility (IM) separation strategies could provide further understanding […]

Susan Richardson Reddit AMA

Last month environmental chemist and mass spectrometrist Susan Richardson, Professor of Chemistry at the University of South Carolina did a Reddit “Ask Me Anything” (“AMA”) on Swimming Pool Chemistry.

Posted on September 17, 2016Author kkmurrayCategories Education, Web ResourcesTags education, people, web

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