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Source Fingerprinting of PFOA via Full- and Intramolecular Stable Isotope Ratios of Carbon Using Orbitrap-IRMS
Scientific article | Science and research

Source Fingerprinting of PFOA via Full- and Intramolecular Stable Isotope Ratios of Carbon Using Orbitrap-IRMS

This study demonstrates Orbitrap-IRMS for full and intramolecular carbon isotope analysis of PFOA, enabling sensitive PFAS source fingerprinting without analyte decomposition.
Mo, 2.2.2026
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Source Fingerprinting of PFOA via Full- and Intramolecular Stable Isotope Ratios of Carbon Using Orbitrap-IRMS
Coumarin-Based Photolabile Solid Support Facilitates Nonchromatographic Purification of RNA Oligonucleotides
Scientific article | Science and research

Coumarin-Based Photolabile Solid Support Facilitates Nonchromatographic Purification of RNA Oligonucleotides

A coumarin-based photocleavable solid support allows visible-light release and nonchromatographic purification of RNA oligonucleotides, including UV-sensitive phosphorothioate backbones.
Mo, 5.1.2026
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Coumarin-Based Photolabile Solid Support Facilitates Nonchromatographic Purification of RNA Oligonucleotides
Gunacins: Novel Benzo[g]chromene Derivatives from the Fungus Exobasidium sp. and Their Potent Anti-Leishmania and Trypanosoma Activities
Scientific article | Science and research

Gunacins: Novel Benzo[g]chromene Derivatives from the Fungus Exobasidium sp. and Their Potent Anti-Leishmania and Trypanosoma Activities

Gunacins, new compounds from Exobasidium, display strong anti-Leishmania and anti-Trypanosoma effects and also show antibacterial and antifungal activity.
Mo, 8.12.2025
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Gunacins: Novel Benzo[g]chromene Derivatives from the Fungus Exobasidium sp. and Their Potent Anti-Leishmania and Trypanosoma Activities
Optimization of Methodology for Simultaneous Quantification of Trigonelline, 5-Caffeoylquinic Acid, and Caffeine in Green and Roasted Coffee Extracts by HPLC
Scientific article | Science and research

Optimization of Methodology for Simultaneous Quantification of Trigonelline, 5-Caffeoylquinic Acid, and Caffeine in Green and Roasted Coffee Extracts by HPLC

A fast HPLC-UV method was optimized to quantify trigonelline, 5-CQA, and caffeine in multiple Arabica cultivars. The method proved robust and highlighted major cultivar and roasting-related changes.
Mo, 1.12.2025
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Optimization of Methodology for Simultaneous Quantification of Trigonelline, 5-Caffeoylquinic Acid, and Caffeine in Green and Roasted Coffee Extracts by HPLC
The 13th Conference of Czech Society for Mass Spectrometry & 11th Informal proteomic meeting - Day 1
Article | Events

The 13th Conference of Czech Society for Mass Spectrometry & 11th Informal proteomic meeting - Day 1

Day 1 in České Budějovice featured an Orbitrap plenary by Alexander Makarov, sessions on exposome, proteomics and structural MS, sponsor talks, flash talks and an evening networking reception.
Th, 20.11.2025
Česká společnost pro hmotnostní spektrometrii
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The 13th Conference of Czech Society for Mass Spectrometry & 11th Informal proteomic meeting - Day 1
The Critical Role of Nitrogen Blowdown in SPE Sample Preparation
Article | Science and research

The Critical Role of Nitrogen Blowdown in SPE Sample Preparation

Explore how nitrogen blowdown enhances sample prep efficiency in SPE workflows using Waters Oasis, Agilent Bond Elut and Phenomenex Strata, improving analyte recovery, sensitivity and method reliability.
Th, 30.10.2025
Organomation
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The Critical Role of Nitrogen Blowdown in SPE Sample Preparation
Global LCMS Conferences and Training 2025 – LabRulez
Article | Events

Global LCMS Conferences and Training 2025 – LabRulez

Explore global LCMS events in 2025: conferences, courses, workshops, and training. Stay updated on cutting-edge LC/MS methods and connect with experts worldwide.
Fr, 5.9.2025
LabRulez
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Global LCMS Conferences and Training 2025 – LabRulez
General Screening and Multiple Dissociation Methods for Complementary LC–MS Analysis of Pesticides in Beverages: Potential and Pitfalls
Scientific article | Science and research

General Screening and Multiple Dissociation Methods for Complementary LC–MS Analysis of Pesticides in Beverages: Potential and Pitfalls

A ZenoTOF 7600 modified for CID, EAD, and UVPD allowed LC–MS screening of pesticides in juices and wines. About 30 were detected at pg–ng/mL levels, confirmed by multiple dissociation methods.
Mo, 25.8.2025
LabRulez
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General Screening and Multiple Dissociation Methods for Complementary LC–MS Analysis of Pesticides in Beverages: Potential and Pitfalls
Quantification of Endogenous Steroids and Hormonal Contraceptives in Human Plasma via Surrogate Calibration and UHPLC-MS/MS
Scientific article | Science and research

Quantification of Endogenous Steroids and Hormonal Contraceptives in Human Plasma via Surrogate Calibration and UHPLC-MS/MS

A UHPLC-MS/MS assay using surrogate calibration and DMIS derivatization quantifies endogenous steroids and contraceptives in plasma with pg/mL sensitivity and regulatory-aligned validation.
Mo, 11.8.2025
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Quantification of Endogenous Steroids and Hormonal Contraceptives in Human Plasma via Surrogate Calibration and UHPLC-MS/MS
Occurrence of Pharmaceuticals and Other Anthropogenic Compounds in the Wastewater Effluent of Arctic Expedition Cruise Ships
Scientific article | Science and research

Occurrence of Pharmaceuticals and Other Anthropogenic Compounds in the Wastewater Effluent of Arctic Expedition Cruise Ships

The study examines treated wastewater from Arctic cruise ships to identify pharmaceuticals and other contaminants, highlighting potential risks to sensitive polar marine environments.
Mo, 7.7.2025
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Occurrence of Pharmaceuticals and Other Anthropogenic Compounds in the Wastewater Effluent of Arctic Expedition Cruise Ships
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LabRulez s.r.o. All rights reserved. Content available under a CC BY-SA 4.0 Attribution-ShareAlike