Results 81 to 90 of about 23,921,062 (292)

High‐Current‐Density Acidic CO2 Electroreduction to Formic Acid Enabled by Multiscale Microenvironment Regulation Over Defect‐Rich Sn/SnOx

open access: yesAdvanced Science, EarlyView.
Acidic CO2 electroreduction to formic acid is enabled by integrating mixed Sn/SnOx nanoclusters, K+‐regulated interfacial solvation, and Janus wettability. Coordinated control of active sites, interfacial water, and gas‐liquid transport suppresses hydrogen evolution and delivers approximately 85% HCOOH Faradaic efficiency at 400 mA cm−2.
Qiaoqi Guo   +8 more
wiley   +1 more source

Comprehensive two-dimensional gas chromatography (GC × GC) measurements of volatile organic compounds in the atmosphere [PDF]

open access: yesAtmospheric Chemistry and Physics, 2003
During the MINOS campaign in August 2001 comprehensive two-dimensional gas chromatography (GC x GC) was applied to the in situ measurements of atmospheric volatile organic compounds (VOCs) at the Finokalia ground station, Crete.
X. Xu   +7 more
doaj  

Characteristic volatile compounds in different parts of grass carp by comprehensive two-dimensional gas chromatography/time-of-flight mass spectrometry

open access: yesInternational Journal of Food Properties, 2020
Freshwater fish are usually unpopular with people, mainly because of their unappealing earthy and fishy smell. Comprehensive two-dimensional gas chromatography is a relatively new analytical technique.
Hongli Wang   +4 more
doaj   +1 more source

Neuron‐Derived Vesicular circMagi1 Restrains Vascular Repair After Ischemic Stroke by Promoting TRIM65‐Mediated ANXA2 Degradation

open access: yesAdvanced Science, EarlyView.
After ischemic stroke, injured neurons transfer circMagi1 to endothelial cells through extracellular vesicles. Within endothelial cells, circMagi1 binds ANXA2 and enhances its engagement with TRIM65, promoting ANXA2 ubiquitination and proteasomal degradation to constrain angiogenic repair.
Youkun Bi   +16 more
wiley   +1 more source

A comparative study of volatile components in green, oolong and black teas by using comprehensive two-dimensional gas chromatography - time-of-flight mass spectrometry and multivariate data analysis

open access: yes, 2013
A comparative study of volatile components in green, oolong and black teas by using comprehensive two-dimensional gas chromatography - time-of-flight mass spectrometry and multivariate data ...
张磊   +5 more
core  

Granzyme B PET Imaging Reveals Lgmn+ Macrophage‐Mediated Immune Evasion and Guides Immunotherapy in EGFR‐TKI‐Resistant NSCLC

open access: yesAdvanced Science, EarlyView.
Graphical illustration of 68Ga‐GZB PET/CT imaging reveals immune dynamics post‐EGFR‐TKI resistance in NSCLC; Lgmn+ macrophages‐derived Lgmn‐containing extracellular vesicles inhibit glycolysis, induce CD8+ T cell exhaustion, and targeting Lgmn restores immunotherapy sensitivity.
Dongliang Wang   +9 more
wiley   +1 more source

Application for Validation of Compound Identification in GC×GC Based on Retention Index

open access: yesProceedings
Comprehensive two-dimensional gas chromatography (GC×GC) is a powerful technique for separating, identifying, and quantifying volatile and semi-volatile compounds in complex samples [...]
Palathip Kakanopas   +2 more
doaj   +1 more source

Composition and origin of molecular compounds in the condensate oils of the Dabei gas field, Tarim Basin, NW China

open access: yesPetroleum Exploration and Development, 2019
The Dabei gas field in the Kuqa Depression of the Tarim Basin is the most complex and deep continental condensate gas field in China. Comprehensive two-dimensional gas chromatography-time of flight mass spectrometer (GC×GC-TOFMS) analysis was conducted ...
Guangyou ZHU   +7 more
doaj   +1 more source

Pt‐Regulated Dynamic Cu(0) Regeneration in CuPt Alloy Enables High‐Efficiency Self‐Driven Formaldehyde Fuel Cells for Potassium Formate Production

open access: yesAdvanced Science, EarlyView.
In this work, a Cu30PtX/CF anode material was synthesized to effectively catalyze the electrocatalytic formaldehyde oxidation, and thereby assembled a fuel cell that offered a high open‐circuit potential of 0.94 V and a power density of 34.3 mW cm−2. This work realizes the co‐generation of electrical energy and high‐value‐added chemicals with nearly ...
Hanxu Hou   +9 more
wiley   +1 more source

Method development and applications of comprehensive two-dimensional gas chromatography

open access: yes, 2007
Comprehensive two-dimensional gas chromatography (GC×GC) is a high resolution and high sensitivity technique. It is especially suitable for the separation and identification of analytes in complex mixtures.
邱涯琼   +6 more
core  

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