Can Temperature and UV Exposure Alter the Antimicrobial Properties of the Essential Oils? An Investigation of Origanum vulgare, Cymbopogon citratus, Syzygium aromaticum, and Lippia sidoides
Scientific article | Science and research

Can Temperature and UV Exposure Alter the Antimicrobial Properties of the Essential Oils? An Investigation of Origanum vulgare, Cymbopogon citratus, Syzygium aromaticum, and Lippia sidoides

GC-MS shows that heat and UV exposure modify essential oil composition and can improve antimicrobial activity, especially against fungal strains.
Can Temperature and UV Exposure Alter the Antimicrobial Properties of the Essential Oils? An Investigation of Origanum vulgare, Cymbopogon citratus, Syzygium aromaticum, and Lippia sidoides
Polycyclic aromatic compounds in air – importance of re-volatilisation from soils
Scientific article | Science and research

Polycyclic aromatic compounds in air – importance of re-volatilisation from soils

GC-MS/MS and flux analysis show that soils can re-emit PAHs and related compounds, with secondary emissions potentially rivaling local primary sources.
Polycyclic aromatic compounds in air – importance of re-volatilisation from soils
Benzoylation strategy for GC–EI–MS analysis of alkyl methylphosphonic acids, amidines and guanidines as retrospective markers of nerve chemical warfare agent use
Scientific article | Science and research

Benzoylation strategy for GC–EI–MS analysis of alkyl methylphosphonic acids, amidines and guanidines as retrospective markers of nerve chemical warfare agent use

A benzoylation strategy enables GC-EI-MS analysis of acidic and basic nerve-agent degradation products, with benzoic anhydride providing the best performance.
Benzoylation strategy for GC–EI–MS analysis of alkyl methylphosphonic acids, amidines and guanidines as retrospective markers of nerve chemical warfare agent use
Combining elemental analysis and molecular techniques to characterize Ancient Egyptian mummification balms
Scientific article | Science and research

Combining elemental analysis and molecular techniques to characterize Ancient Egyptian mummification balms

A combined ATR-FTIR, ICP-MS, Py-GC-MS, and THM-GC-MS approach identifies organic and inorganic components in Ancient Egyptian mummification balms.
Combining elemental analysis and molecular techniques to characterize Ancient Egyptian mummification balms
Analysis of characteristic flavor compounds in coffee peels subjected to different thermal processing treatments based on GC–IMS and HS-SPME–GC–MS combined with chemical pattern recognition
Scientific article | Science and research

Analysis of characteristic flavor compounds in coffee peels subjected to different thermal processing treatments based on GC–IMS and HS-SPME–GC–MS combined with chemical pattern recognition

Combined GC-IMS and HS-SPME-GC-MS with chemometrics differentiates coffee peel processing treatments and identifies characteristic volatile aroma markers.
Analysis of characteristic flavor compounds in coffee peels subjected to different thermal processing treatments based on GC–IMS and HS-SPME–GC–MS combined with chemical pattern recognition
Volatile compound fingerprinting for traditional sesame oil authentication using GC-MS with GC×GC-MS-assisted identification
Scientific article | Science and research

Volatile compound fingerprinting for traditional sesame oil authentication using GC-MS with GC×GC-MS-assisted identification

HS-SPME-GC×GC-MS-assisted fingerprinting enables sensitive authentication of sesame oil, detecting maize oil dilution from 5% and essence adulteration from 0.2%.
Volatile compound fingerprinting for traditional sesame oil authentication using GC-MS with GC×GC-MS-assisted identification
Automated Rapid Organic-Solvent-Free Metabolomics via Arrow–GC–MS: An Optimized Green Workflow for Human Plasma Profiling
Scientific article | Science and research

Automated Rapid Organic-Solvent-Free Metabolomics via Arrow–GC–MS: An Optimized Green Workflow for Human Plasma Profiling

AROMA-GC-MS provides automated, solvent-free plasma metabolomics using SPME Arrow, detecting over 100 metabolites from only 50 µL of plasma.
Automated Rapid Organic-Solvent-Free Metabolomics via Arrow–GC–MS: An Optimized Green Workflow for Human Plasma Profiling
Propionic Acid Outperforms Formic and Acetic Acid in MS Sensitivity for High-Flow Reversed-Phase LC-MS Bottom-Up Proteomics
Scientific article | Science and research

Propionic Acid Outperforms Formic and Acetic Acid in MS Sensitivity for High-Flow Reversed-Phase LC-MS Bottom-Up Proteomics

Propionic acid increases peptide identifications by 39% versus formic acid in LC-MS proteomics while maintaining chromatographic performance and compatibility.
Propionic Acid Outperforms Formic and Acetic Acid in MS Sensitivity for High-Flow Reversed-Phase LC-MS Bottom-Up Proteomics
Toward Accurate Estimation of Extractable Organic Fluorine by Analysis of Fluoride Contamination in Extracts Using Gas Chromatography
Scientific article | Science and research

Toward Accurate Estimation of Extractable Organic Fluorine by Analysis of Fluoride Contamination in Extracts Using Gas Chromatography

A GC-MS/MS method quantifies inorganic fluoride in EOF extracts and shows that fluoride contamination can substantially overestimate organic fluorine measured by CIC.
Toward Accurate Estimation of Extractable Organic Fluorine by Analysis of Fluoride Contamination in Extracts Using Gas Chromatography
Hydrogen Analysis by Gas Chromatography–Mass Spectrometry
Scientific article | Science and research

Hydrogen Analysis by Gas Chromatography–Mass Spectrometry

A cryogenic single-column GC-MS method with modified EI enables direct hydrogen quantification in complex gas mixtures using helium carrier gas.
Hydrogen Analysis by Gas Chromatography–Mass Spectrometry