Results 121 to 130 of about 623,539 (276)

Method development, novel applications and fundamental studies of ambient ionization methods: Desorption electrospray ionization (DESI) and low temperature plasma (LTP) ionization

, 2010
Ambient ionization is a novel field in mass spectrometry. Ambient ionization methods are promising as they permit direct analysis of samples in their native environment with minimal sample preparation.
Jackson, Ayanna U
core   +1 more source

Development and applications of ionization techniques in ambient mass spectrometry

, 2014
Ambient mass spectrometry is a sharply developing subject area. Desorption electrospray ionization (DESI) and desorption atmospheric pressure photoionization (DAPPI) are two types of ionization techniques in the ambient mass spectometry.
Rejšek, Jan
core  

Optimization of Ambient Ionization Methodologies for Field Investigations Utilizing Portable Mass Spectrometric Instrumentation

, 2018
OPTIMIZATION OF AMBIENT IONIZATION METHODOLOGIES FOR FIELD INVESTIGATIONS UTILIZING PORTABLE MASS SPECTROMETRIC INSTRUMENTATION SHAHNAZ MUKTA In the late nineteenth century, Sir J.J.
Mukta, Shahnaz
core   +1 more source

Recent Advances in Laser‐Induced Graphene‐Based Gas Sensors: From Sensing Mechanisms to Biomedical Applications

Advanced Science, EarlyView.
Laser‐induced graphene (LIG) provides a scalable, laser‐direct‐written route to porous graphene architecture with tunable chemistry and defect density. Through heterojunction engineering, catalytic functionalization, and intrinsic self‐heating, LIG achieves highly sensitive and selective detection of NOX, NH3, H2, and humidity, supporting next ...
Md Abu Sayeed Biswas, Ankan Dutta, Shuvendu Das, Abu Musa Abdullah, Wanqing Zhang, Fatema Tuz Zohra, Huanyu Cheng   +6 more
wiley   +1 more source

Combined ambient ionization mass spectrometric and chemometric approach for the differentiation of hemp and marijuana varieties of Cannabis sativa. [PDF]

J Cannabis Res, 2023
Chambers MI, Beyramysoltan S, Garosi B, Musah RA.   +3 more
europepmc   +1 more source

Atomic Tuning of Metal‐Support Interactions for Pathway‐Selective CO2 Photoreduction on TiO2

Advanced Science, EarlyView.
Single‐atom Fe and Cu catalysts anchored on TiO2 steer photocatalytic CO2 reduction toward distinct pathways. Fe sites favor rapid *CO desorption and selective CO formation, whereas Cu sites stabilize *CHO intermediates, enabling deep reduction and C─C coupling. Combined spectroscopy and DFT calculations reveal how metal–support interactions and oxygen
Dongyun Kim, Wonjae Ko, Byoung‐Hoon Lee, Sanghoon Kim, Yun Do Kim, Hyunsoo Ahn, Yoon Jung, Chan Woo Lee, Kug‐Seung Lee, Eunhee Gong, Junho Lee, Minho Kim, Taeghwan Hyeon, Su‐Il In   +13 more
wiley   +1 more source

Unveiling Insights Into Partial Discharge and Design and Encapsulation Challenges in DCB-Based Power Converters for Aerospace Applications

IEEE Access
This study combines comprehensive analyses of design parameters with encapsulation solutions of Direct Copper Bond (DCB) substrates used in high voltage power converter modules, focusing on partial discharge (PD) activity under varying pressures for ...
Tohid Shahsavarian, Moritz Ploner, Kerry Lynn Davis-Amendola, Brian Chislea, John McKeen, Di Zhang, Andrea Cavallini, Yang Cao   +7 more
doaj   +1 more source

The study of distribution of ingested terbinafine on skin with ambient ionization tandem mass spectrometry. [PDF]

J Food Drug Anal, 2022
Cho YT, Su H, Wu CY, Jeng J, Lee CW, Wu DC, Huang TL, Shiea J.   +7 more
europepmc   +1 more source

Synergy of Pd Clusters and TiO2 {101} for Photocatalytic Nonoxidative Coupling of Methane

Advanced Science, EarlyView.
This study presents photocatalytic nonoxidative coupling of methane over cal‐Pd0.05/TiO2{101}, achieving near 100% selectivity and long‐term stability under mild flow conditions through synergistic single atoms and clusters catalysis. ABSTRACT Photocatalytic nonoxidative coupling of methane (NOCM) offers a sustainable route to valorize CH4 into C2 ...
Jianlong Yang, Annika S. Tang, Junwang Tang   +2 more
wiley   +1 more source

Rapid Characterization of Bacterial Lipids with Ambient Ionization Mass Spectrometry for Species Differentiation. [PDF]

Molecules, 2022
Su H, Jiang ZH, Chiou SF, Shiea J, Wu DC, Tseng SP, Jain SH, Chang CY, Lu PL.   +8 more
europepmc   +1 more source