Results 41 to 50 of about 528,026 (297)

Determination of pesticides in the respirable fraction of airborne particulate matter by high-performance liquid chromatography–tandem mass spectrometry [PDF]

, 2017
Potential harmful effects of pesticides include risks to human health of workers involved in the wet spray application in cultivated areas. Inhalation exposure depends on several factors including pesticide concentrations in the respirable fraction of ...
Buiarelli, Francesca, Console, Carla, De Gennaro, Martina, Di Filippo, Patrizia, Laurendi, Vincenzo, Pomata, Donatella, Puri, Daniele, Riccardi, Carmela   +7 more
core   +1 more source

An easily prepared graphene oxide-ionic liquid hybrid nanomaterial for micro-solid phase extraction and preconcentration of Hg in water samples [PDF]

, 2018
A preconcentration method based on the use of graphene oxide (GO) functionalized with an ionic liquid (IL) was developed for trace Hg determination in water samples.
Cruz Sotolongo, Annaly, Martinis, Estefanía Mabel, Wuilloud, Rodolfo German   +2 more
core   +1 more source

Novel Room Temperature Ionic Liquid for Liquid-Phase Microextraction of Cannabidiol from Natural Cosmetics

Separations, 2020
This study presents the synthesis of a novel asymmetric 1,3-di(alkoxy)imidazolium based room temperature ionic liquid, more precisely 1-butoxy-3-ethoxy-2-ethyl-imidazolium bis(trifluoromethane)sulfonimide, and its application as an extraction solvent in ...
S. Huber, M. Harder, Kevin Funck, Kevin Erharter, M. Popp, G. Bonn, M. Rainer   +6 more
semanticscholar   +1 more source

Recent progress in solid- and liquid-phase microextraction methods for the extraction and quantification of current-use pesticides

Advances in Sample Preparation
The widespread use of pesticides has led to their pervasive presence in diverse environmental matrices such as water, air, and soil. Therefore, accurate and reliable determination of pesticides in various sample types is essential.
Seyedeh Bentolhoda Hosseinian, Milad Ghani, Jahan Bakhsh Raoof   +2 more
doaj   +1 more source

Developments in liquid-phase microextraction

TrAC Trends in Analytical Chemistry, 2003
Abstract The development of faster, simpler, inexpensive and more environmentally friendly sample-preparation techniques is an important issue in chemical analysis. Recent research trends involve miniaturisation of the traditional liquid-liquid extraction (LLE) principle by greatly reducing the acceptor-to-donor phase ratio.
E Psillakis (), N Kalogerakis()
openaire   +2 more sources

Natural deep eutectic solvents and natural solid biosorbents in microextraction techniques of organic compounds based on chromatographic techniques: A critical review

Advances in Sample Preparation
Analytical chemistry has increasingly focused on the environmental impact of its methods, with significant attention given to green principles in sample preparation. Techniques like Solid-Phase Microextraction (SPME), Micro-Solid-Phase Extraction (µ-SPE),
Eduardo Carasek, Lucas Morés, Natan da Cunha, Guilherme Leal Branco, Adriana Neves Dias   +4 more
doaj   +1 more source

Determining the distribution of triclosan and methyl triclosan in estuarine settings [PDF]

, 2014
We have developed a method for the analysis of two sewage-derived contaminants: triclosan (TCS), an antibacterial agent, and methyl triclosan (MTCS), a TCS metabolite.
Agüera, Azzouz, Balmer, Baltussen, Beltran, Bester, Buth, Canosa, Canosa, Cantwell, Casas-Ferreira, Chen, Chu, Cottell, Cueva-Mestanza, Eduardo González-Mazo, El Rayis, Fernandes, Fiss, Gilart, Giordano, Göbel, Heidler, Kantiani, Kawaguchi, Kuster, Lara-Martín, Lara-Martín, Lara-Martín, Lindström, Lozano, Marina G. Pintado-Herrera, Miller, Pablo A. Lara-Martín, Pedrouzo, Petrovic, Prieto, Pérez-Carrera, Quintana, Silva, Sánchez-Brunete, Ternes, Wu, Zaroogian, Zhao   +44 more
core   +2 more sources

Microextraction and Eco-Friendly Techniques Applied to Solid Matrices Followed by Chromatographic Analysis

Separations
In this review, a 5-year overview on environmentally friendly approaches for the extraction of the most relevant organic pollutants in soil, sediment, particulate matter, and sewage sludge coupled with chromatographic analysis is reported.
Attilio Naccarato, Rosangela Elliani, Antonio Tagarelli   +2 more
doaj   +1 more source

Microextraction Techniques Coupled to Liquid Chromatography with Mass Spectrometry for the Determination of Organic Micropollutants in Environmental Water Samples

Molecules, 2014
Until recently, sample preparation was carried out using traditional techniques, such as liquid–liquid extraction (LLE), that use large volumes of organic solvents.
Mª Esther Torres Padrón, Cristina Afonso-Olivares, Zoraida Sosa-Ferrera, José Juan Santana-Rodríguez   +3 more
doaj   +1 more source

Recent Applications of Solid Phase Microextraction Coupled to Liquid Chromatography

Separations, 2021
Solid phase microextraction (SPME) is one of the most popular sample preparation methods which can be applied to organic compounds allowing the simultaneous extraction and pre-concentration of analytes from the sample matrix.
Carlo Zambonin, Antonella Aresta
doaj   +1 more source