Results 91 to 100 of about 439,764 (310)

Sterol composition of the "living fossil" crinoid Gymnocrinus richeri [PDF]

open access: yes, 1991
The compn. of sterol mixt. from the living fossil crinoid G. richeri collected off Noumea (New Caledonia) was investigated. The free 3β-OH sterol mixt. was found to contain 14 components, Δ5 and ring satd. stanols, identified by GC-MS.
De Riccardis, F.   +6 more
core   +1 more source

Stabilization of Miscible Aqueous Phases via Diffusion‐Controlled Multifunctional Nanoparticle‐Ligand Complexation

open access: yesAdvanced Functional Materials, EarlyView.
This study presents a versatile approach to harnessing miscible aqueous domains, enabling liquid‐in‐liquid compartmentalization using a barrier formed in situ rather than bulk immiscibility. The barrier forms upon the complexation of multifunctional nanoparticles and ligands at the contact boundary of aqueous phases.
Seyyed Alireza Hashemi   +7 more
wiley   +1 more source

GC/GC-MS analysis and biological activities of Lantana Camara Linn.

open access: yesJournal of Sustainable Environment
Medicinal plants have been a part of human history for thousands of years and are still used as healthcare throughout the world. The current research aims to explore the chemical constituents of the methanol soluble extract (LC-Me) and petroleum ether ...
Riffat Abdul Ghafoor   +7 more
doaj   +1 more source

Brewing biofuel from coffee waste: Production and GC-MS/MS characterization [PDF]

open access: yesE3S Web of Conferences
The growing production of spent coffee grounds (SCG) presents a valuable opportunity for sustainable biodiesel generation due to their high lipid content.
Emmanouilidou Elissavet   +5 more
doaj   +1 more source

Accuracy Profile Validation of a New Analytical Method for Propane Measurement Using Headspace-Gas Chromatography-Mass Spectrometry [PDF]

open access: yes, 2017
Propane can be responsible for several types of lethal intoxication and explosions. Quantifying it would be very helpful to determine in some cases the cause of death.
Augsburger, Marc   +2 more
core  

Covalent Organic Frameworks for Photocatalytic CO2 Reduction: Metal Integration Principles, Strategies and Functions

open access: yesAdvanced Functional Materials, EarlyView.
Covalent organic frameworks (COFs) with metals have been recognized as versatile platforms for photocatalytic CO2 reduction (CO2PRR). Herein, an overview of metal integration strategies for COFs is systematically summarized. Regulatory mechanisms and structure–activity relationships between metal integration and COF‐based CO2PRR are emphasized.
Jie He   +5 more
wiley   +1 more source

The GC MS Study of One Ayurvedic Formulation, Navayasa Churnam

open access: yesJournal of Pharmacy and Bioallied Sciences
Background: Navayasa Churnam is an Ayurvedic medicine traditionally used to treat anemia, heart diseases, skin disorders, piles, and jaundice. Aim: The present study involves GC-MS analysis of Navayasa Churnam, an Ayurvedic medicine traditionally used to
Aparna Sudhan   +8 more
doaj   +1 more source

Innovative methodology to transfer conventional GC-MS heroin profiling to UHPLC-MS/MS [PDF]

open access: yes, 2018
Nowadays, in forensic laboratories, heroin profiling is frequently carried out by gas chromatography coupled with mass spectrometry (GC-MS). This analytical technique is well established, provides good sensitivity and reproducibility, and allows the use ...
Broséus, J.   +7 more
core  

Organic molecular markers and signature from wood combustion particles in winter ambient aerosols: aerosol mass spectrometer (AMS) and high time-resolved GC-MS measurements in Augsburg, Germany [PDF]

open access: yes, 2012
The impact of wood combustion on ambient aerosols was investigated in Augsburg, Germany during a winter measurement campaign of a six-week period. Special attention was paid to the high time resolution observations of wood combustion with different mass ...
A. S. H. Prévôt   +11 more
core   +1 more source

Bioinspired Stabilization of Fluorescent Au@SiO2 Tracers for Multimodal Biological Imaging

open access: yesAdvanced Functional Materials, EarlyView.
This study demonstrates a bioinspired stabilization strategy for fluorescent gold‐silica nanoparticles. Inspired by natural biosilica maturation, high‐temperature calcination transforms the silica shells, preventing dissolution in cell culture media and intracellular environments.
Wang Sik Lee   +5 more
wiley   +1 more source

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