Results 151 to 160 of about 22,960 (265)

Cryogen‐Aided Chromatographic Purification of Millimole Quantities of Methane for Spectroscopic Clumped Isotope Analysis

Rapid Communications in Mass Spectrometry, Volume 40, Issue 18, 30 September 2026.
ABSTRACT Rationale Quantum cascade laser absorption spectroscopy (QCLAS) is a fast and reliable method for analyzing the bulk (𝛿13C‐CH4, 𝛿D‐CH4) and clumped isotopic (∆13CH3D and ∆12CH2D2) composition of methane. However, precise measurements of ∆12CH2D2 require 0.5 to 1.8 mmol of purified methane (equivalent to 15 to 40 mL at STP).
Nico Kueter, Jan G. C. Meissner, Naizhong Zhang, Léna Msonnereau, Lukas Emmenegger, Joachim Mohn, Stefano M. Bernasconi   +6 more
wiley   +1 more source

In Vivo Microscopic Features of Acne vulgaris Revealed via LC-OCT. [PDF]

Skin Res Technol
Traini DO, Palmisano G, Stefani AD, Bocchino E, Guerriero C, Suppa M, Peris K.   +6 more
europepmc   +1 more source

Multimodal Transformer Fusion of PTR‐ToF‐MS Volatiles and Targeted Non‐Volatile Metabolites Enables Data‐Driven Grading of Baimudan White Tea

Rapid Communications in Mass Spectrometry, Volume 40, Issue 18, 30 September 2026.
ABSTRACT Rationale Commercial grading of Baimudan white tea still relies largely on sensory evaluation and would benefit from a rapid, objective analytical approach. This study investigated whether PTR‐ToF‐MS volatile fingerprints combined with targeted non‐volatile metabolite measurements could support data‐driven grading of four official Baimudan ...
Dandan Zhang, Suk‐Hwan Hong, Xiaojing Li   +2 more
wiley   +1 more source

Laser-based therapies in the management of non-melanoma skin cancers: a narrative review. [PDF]

Lasers Med Sci
Russano F, Brugnolo D, Dall'Olmo L, Callegarin F, Del Fiore P, Mazza M, Camuccio A, Scafuri D, Furlan D, Rastrelli M, Mocellin S.   +10 more
europepmc   +1 more source

Effect of Humidity on Ionisation and Ion Chemistry in Active‐Capillary Dielectric Barrier Discharge Ionisation

Rapid Communications in Mass Spectrometry, Volume 40, Issue 18, 30 September 2026.
ABSTRACT Rationale Dielectric barrier discharge ionisation (DBDI) in an active‐capillary configuration (including the commercial SICRIT source) is widely used as a soft, ambient‐pressure ionisation method for vapours and gases, yet the role of water vapour in controlling reagent ion chemistry and analytical behaviour has not been mechanistically ...
Miroslav Polášek, Patrik Španěl, Kseniya Dryahina   +2 more
wiley   +1 more source

Biomedical optical imaging of acne pathology: from single-modality methods to multimodal integration. [PDF]

Front Med (Lausanne)
Ren X, Yang J, Sun Y, Quan Q, Zhang P, Wang Y, Wang Y.   +6 more
europepmc   +1 more source

Toward Metabolomics Analyses With Combined Capillary Vibrating Sharp‐Edge Spray Ionization and Atmospheric Pressure Chemical Ionization

Rapid Communications in Mass Spectrometry, Volume 40, Issue 17, 15 September 2026.
ABSTRACT Rationale The varied properties of metabolomics components dictate the tools used in mass spectrometry (MS) characterization including the selection of the ionization source. However, the ionization of select compounds limits characterization efficiency.
Madison Pursell, Adefolake Ojanuga, Chandrima Banerjee, Ephraim Ezeigbo, Mohammad Rahman, Vikum K. Dewasurendra, Thomas B. Hughart, Matthew B. Johnson, Mst Nigar Sultana, Xiaoting Guo, Gabriel Alexander, Priya Patel, Peng Li, Justin Legleiter, Stephen J. Valentine   +14 more
wiley   +1 more source

Dermoscopy and Beyond: The Emerging Role of Multimodal Imaging and Diagnostic Modalities in Basal Cell Carcinoma. [PDF]

Indian Dermatol Online J
Vinay K, De D.
europepmc   +1 more source

A New Approach to the Analysis of Dissolved Gases Using Passive Samplers, With Portable Mass Spectrometry and Gas Chromatography Techniques

Rapid Communications in Mass Spectrometry, Volume 40, Issue 17, 15 September 2026.
ABSTRACT Rationale Portable mass spectrometry systems such as miniRUEDI enable rapid and low‐cost field analysis of dissolved gases with high temporal resolution. However, they remain poorly suited for discrete small‐volume water samples. This study presents an approach based on passive sampling for groundwater and surface waters dissolved gases and ...
Antoine Picard, Florent Barbecot, Matéo Lacheux, Matthias S. Brennwald, José A. Corcho‐Alvarado   +4 more
wiley   +1 more source