Results 31 to 40 of about 37,813 (234)
Underground Signals: The Ecological Power of Root Volatiles
Advanced Science, EarlyView.Root volatiles mediate rhizosphere chemical communication, shaping interactions among plants, microbes, herbivores, and natural enemies. Their production, transport, and perception underpin ecological adaptation, multitrophic interactions, and plant resilience, offering opportunities for sustainable crop protection, resilient agroecosystems, and ...
Xueyao Cao +31 more
wiley +1 more source
Otimização e aplicação da microextração em fase sólida com e sem refrigeração interna em amostras de ervas medicinais e água de rio [PDF]
, 2013 Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas. Programa de Pós-Graduação em Quimica, Florianópolis, 2013A microextração em fase sólida no modo de extração headspace (HS-SPME) e a microextração ...
Merib, Josias de Oliveira
core
Journal of the American Oil Chemists' Society, EarlyView.Preparation of a highly porous cellulose‐coated stir bar for the selective, environmentally friendly extraction of free glycerol from biodiesel using the SBSE method, followed by HPLC‐DAD analysis of the extract after derivatization with benzoyl chloride.
Caroline Lopes da Silva +3 more
wiley +1 more source
Cortiça: uma nova abordagem como fase extratora para microextração em fase sólida e microextração em barra adsortiva [PDF]
, 2015 Tese (doutorado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas, Programa de Pós-Graduação em Química, Florianópolis, 2015.Neste estudo foi proposto pela primeira vez o uso da cortiça como fase extratora para duas ...
Dias, Adriana Neves
core
Molecules, 2021 Two new ultra-high performance liquid chromatography (UHPLC) methods for analyzing 21 selected antivirals and their metabolites were optimized, including sample preparation step, LC separation conditions, and tandem mass spectrometry detection.
Luboš Fical +8 more
doaj +1 more source
Drug Testing and Analysis, EarlyView.This review highlights the misuse of antidepressants as potential cognitive‐enhancing agents in Esports. Despite pharmacological effects that overlap with those of psychostimulants, antidepressants remain an under‐recognised source of doping in Esports.
Kassim Ali Salum +4 more
wiley +1 more source
Novas estratégias de otimização para a técnica de SPME e SPME com recobrimento internamente refrigerado [PDF]
, 2012 Tese (doutorado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas, Programa de Pós-Graduação em Química, Florianópolis, 2011Esta Tese apresenta três novas estratégias de otimização, sendo duas aplicadas à técnica de ...
Martendal, Edmar
core
Role of Ionic Liquids in Composites in Analytical Sample Preparation
Separations, 2020 Ionic liquids (ILs) are a group of non-conventional salts with melting points below 100 °C. Apart from their negligible vapor pressure at room temperature, high thermal stability, and impressive solvation properties, ILs are characterized by their ...
Adrián Gutiérrez-Serpa +4 more
doaj +1 more source
Flavour and Fragrance Journal, EarlyView.A validated dynamic headspace–thermal desorption–GC method was developed to measure the substantivity of synthetic musks over time. The method enables objective assessment of fragrance persistence and highlights the contribution of fragrance long‐lasting technologies.
Catherine Malhiac +5 more
wiley +1 more source
Theory of Solid-Phase Microextraction [PDF]
Journal of Chromatographic Science, 2000 The main objective of this contribution is to describe the fundamental concepts associated with solid-phase microextraction (SPME). Theory provides insight when developing SPME methods and identifies parameters for rigorous control and optimization. A mathematical model has been developed to understand the principal processes of SPME by applying basic ...
openaire +2 more sources