Mastodawn

for GC-MS spectra intrepetation, whats better? Claude Opus or ChatGPT 5.5? #gcms #spectromist #massspec #analyticalchemistry #chromatography ahy

jobRxiv May 11

Analytical Chemist
Johns Hopkins University

The McMeniman group at Johns Hopkins is recruiting an analytical chemist to study human scent chemistry scent-based malaria diagnostics.

See the full job description on jobRxiv: https://jobrxiv.org/job/johns-hopkins-university-27778-analytical-chemist/

#Analyticalchemistry #AnalyticalMethodDevelopment #GCMS #LCMS #massspectrometry #ScienceJobs #hiring #resea...
https://jobrxiv.org/job/johns-hopkins-university-27778-analytical-chemist/?fsp_sid=12009

Analytical Chemist

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jobRxiv

verdigado eG Apr 17

Das neue grüne Website‑Design ist da!

Speziell konzipiert für BÜNDNIS 90/DIE GRÜNEN Es ist soweit: Die Neuauflage des grünen Website-Designs „Sunflower“ steht jetzt bereit: Sunflower 26 Wie die Vorgängerversion wurde auch Sunflower 26 speziell für die Gliederungen und Politiker*innen von BÜNDNIS 90/DIE GRÜNEN konzipiert. Wir stellen Euch ein modernes, barrierefreies und datenschutzkonformes Design zur Verfügung, das sofort wiedererkennbar das offizielle Grün der Partei ausstrahlt. Sunflower 26 könnt Ihr in […]

https://verdigado.com/2026/04/17/sunflower-26/

Dave Tabb Apr 5

Why has GC-MS (gas chromatography- electron impact ioniation- mass spectrometry) had such enduring value for the field of metabolomics? How do we identify metabolites based on mass spectrometry data?

I hope you'll enjoy this video explaining the basics of GC-MS and the spectral library methods we use for explaining these spectra!

https://www.youtube.com/watch?v=vTWXkHPHEI0
#bioinformatics
#metabolomics #GCMS

20260405 Gas Chromatography MS and metabolite ID

YouTube

jobRxiv Mar 13

Analytical Chemist
Johns Hopkins University

The McMeniman group at Johns Hopkins is recruiting an analytical chemist to study human scent chemistry scent-based malaria diagnostics.

See the full job description on jobRxiv: https://jobrxiv.org/job/johns-hopkins-university-27778-analytical-chemist/

#Analyticalchemistry #AnalyticalMethodDevelopment #GCMS #LCMS #massspectrometry #ScienceJobs #hiring #resea...
https://jobrxiv.org/job/johns-hopkins-university-27778-analytical-chemist/?fsp_sid=10281

Analytical Chemist

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jobRxiv

jobRxiv Feb 17

Analytical Chemist
Johns Hopkins University

The McMeniman group at Johns Hopkins is recruiting an analytical chemist to study human scent chemistry scent-based malaria diagnostics.

See the full job description on jobRxiv: https://jobrxiv.org/job/johns-hopkins-university-27778-analytical-chemist/

#Analyticalchemistry #AnalyticalMethodDevelopment #GCMS #LCMS #massspectrometry #ScienceJobs #hiring #resear...
https://jobrxiv.org/job/johns-hopkins-university-27778-analytical-chemist/?fsp_sid=9524

Analytical Chemist

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Andy Napper Feb 6

Just spent four hours trying to make a leak-free seal between a tank of UHP He and a regulator.

Turns out the seat in the tank was corroded and no matter how tight I attached the regulator, nothing was going to work.

(Luckily my wife suggested I try another regulator, and w/in ten mins of my conversation with her I realized I was on a fool's errand.)

I need a beer. 🍻#GCMS

Markus Witzler Jan 20

🚨 #publication alert!

Just a few days into the new year and we already have a published #paper first-authored by our PhD candidate Sarah. 🎉

It is the first study on the volatile emissions of Synchytrium endobioticum (potato wart disease) on potatoes. We identified seven possible marker compounds using TD-GC-MS and #chemometrics.

S. endobioticum is a highly potent fungus classified as a quarantine pathogen in the EU, since it can affect #potato fields for more than 40 years.

Our research offers new insights into the volatilome and may enable future screening methods for potato diseases.

#voc #planthealth #gcms #analyticalchemistry #potatowartdisease

Diagnostic volatile organic compounds for potato wart disease: a GC-MS based chemometric approach - Journal of Plant Diseases and Protection

Volatile organic compounds (VOCs) can serve as sensitive indicators of plant health and pathogen infection. In this study, gas chromatography–mass spectrometry combined with multivariate chemometric analysis was applied to identify VOC patterns specific to potato wart disease caused by the pathogen Synchytrium endobioticum. Healthy and artificially infected potato tubers were analyzed under controlled conditions, and the resulting chromatographic data were processed using a Python-based workflow integrating data merging, preprocessing, principal component analysis, and linear discriminant analysis. The chemometric models successfully distinguished infected from healthy tubers. Seven compounds, 1-methoxy-3-methylbutane, 3-methyl-1-butanol, 2-methyl-1-butanol, 2,3-butanediol, prenyl ethyl ether, styrene, and solavetivone, were identified as indicative for infection. In addition, a mass-specific evaluation demonstrated that discrimination is possible using selected ion fragments alone, providing a basis for simplified on-site applications. This study presents the first characterization of a volatile fingerprint for S. endobioticum infection and establishes a robust, time-efficient workflow for non-invasive detection of quarantine pathogens in potato crops.

SpringerLink

jobRxiv Oct 18, 2025

Postdoctoral Analytical Chemist
Johns Hopkins University

Come join us at Johns Hopkins Malaria Research Institute as an #Analytical Chemistry Postdoc

See the full job description on jobRxiv: https://jobrxiv.org/job/johns-hopkins-university-27778-postdoctoral-analytical-chemist/

#AnalyticalMethodDevelopment #analyticalmethods #GCMS #LCMS #metabolomics #ScienceJobs #hiring #research
https://jobrxiv.org/job/johns-hopkins-university-27778-postdoctoral-analytical-chemist/?fsp_sid=4120