Results 41 to 50 of about 14,533 (188)

Recent Advances in Applications of Ionic Liquids in Miniaturized Microextraction Techniques

open access: yesMolecules, 2018
Green sample preparation is one of the most challenging aspects in green analytical chemistry. In this framework, miniaturized microextraction techniques have been developed and are widely performed due to their numerous positive features such as ...
Maria Kissoudi, Victoria Samanidou
doaj   +1 more source

Evaluation of agronomic traits and storage stability in novel rice cultivar ‘Baromi3’ combining floury endosperm and lipoxygenase 3 deficiency

open access: yesJournal of the Science of Food and Agriculture, EarlyView.
Abstract BACKGROUND Rice milling characteristics and storage stability are critical traits influencing industrial applications. Floury endosperm rice carrying the flo4‐4 allele is valuable for dry milling but exhibits reduced storage stability associated with altered starch structural characteristics.
Su‐Kyung Ha   +11 more
wiley   +1 more source

Analytical Approaches to Address Challenges in the Analysis of Cannabinoids in Vascular Matrices Using Mass Spectrometry

open access: yesMass Spectrometry Reviews, EarlyView.
ABSTRACT Phytocannabinoids are bioactive metabolites derived from the Cannabis sativa plant. They have garnered attention due to their recreational uses and therapeutic potential. Although various analytical strategies have been employed for their analysis, mass spectrometry (MS) coupled to chromatographic separation is superior due to its sensitivity ...
Radwa Mahmoud   +2 more
wiley   +1 more source

Development, Optimization and Applications of Thin Film Solid Phase Microextraction (TF-SPME) Devices for Thermal Desorption: A Comprehensive Review

open access: yesSeparations, 2019
Through the development of solid phase microextraction (SPME) technologies, thin film solid phase microextraction (TF-SPME) has been repeatedly validated as a novel sampling device well suited for various applications.
Ronald V. Emmons   +2 more
doaj   +1 more source

Determination of terpenoids in Baijiu using solid-phase extraction combined with headspace solid-phase microextraction

open access: yesInternational Journal of Food Properties, 2022
A new method based on solid-phase extraction (SPE) combined with headspace solid-phase microextraction (HS-SPME) was established for the determination of terpenes in Baijiu.
Minxue Feng   +7 more
doaj   +1 more source

Chemical Ionization Mass Spectrometry: Fundamental Principles, Diverse Applications, and the Latest Technological Frontiers

open access: yesMass Spectrometry Reviews, EarlyView.
ABSTRACT The review examines the evolution of chemical ionization mass spectrometry (CI‐MS), a technique developed in 1966 by Field and Munson. CI is a soft‐ionization method that produces more intense molecular ions with less fragmentation than electron ionization (EI).
Malvika Dutt   +4 more
wiley   +1 more source

Principais técnicas de preparo de amostra para a determinação de resíduos de agrotóxicos em água por cromatografia líquida com detecção por arranjo de diodos e por espectrometria de massas

open access: yesQuímica Nova, 2011
The determination of pesticide residues in water samples by Liquid Chromatography require sample preparation for extraction and enrichment of the analytes with the minimization of interferences to achieve adequate detection limits.
Sergiane Souza Caldas   +5 more
doaj   +1 more source

Recent Advances (2023–2025) of Capillary Electrophoresis‐Mass Spectrometry (CE‐MS) for Top‐Down Proteomics

open access: yesMass Spectrometry Reviews, EarlyView.
ABSTRACT Top‐down proteomics (TDP) characterizes proteoforms in cells, tissues, and biofluids, in discovery mode and on a global scale, requiring analytical tools with high peak capacity for proteoform separation and high sensitivity for proteoform detection, given the extremely high proteoform complexity and wide proteoform concentration dynamic range.
Guijie Zhu   +5 more
wiley   +1 more source

Determination of Ochratoxin A in Wheat and Maize by Solid Bar Microextraction with Liquid Chromatography and Fluorescence Detection

open access: yesToxins, 2015
Solid bar microextraction (SBME), followed by liquid chromatography with fluorescence detection (HPLC-FLD), for the quantification of ochratoxin A in wheat and maize was developed.
Nabil Al-Hadithi   +2 more
doaj   +1 more source

Wildfire Ash Alters Freshwater Crustacean Behavior: Disentangling the Contributions of Suspended Macroparticles and Ash‐Induced Alkalinization

open access: yesEnvironmental Toxicology, EarlyView.
ABSTRACT Climate change and anthropogenic ignitions are intensifying wildfire frequency worldwide, elevating the risk of freshwater contamination by ash. In water, dissolved ash releases ions and other toxic constituents that increase pH and alter physicochemical conditions, while suspended ash particles may impose mechanical stress, disrupt behavior ...
Pétterson B. Pereira‐Silva   +7 more
wiley   +1 more source

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