Results 71 to 80 of about 23,617 (221)

Review: Microextraction Technique Based New Trends in Food Analysis

Critical Reviews in Analytical Chemistry, 2020
Food chemistry is the study and classification of the quality and origin of foods. The identification of definite biomarkers and the determination of residue contaminants such as toxins, pesticides, metals, human and veterinary drugs, which are a very common source of food-borne diseases.
Jagirani, Muhammed Saqaf, Soylak, Mustafa   +1 more
openaire   +5 more sources

Do aphid endosymbiotic bacteria influence parasitoid searching behaviour through changes in aphid honeydew production?

Ecological Entomology, EarlyView.
Hamiltonella defensa infection increases honeydew production in certain aphid genotypes, potentially modifying aphid feeding behaviour. Parasitoid wasps, Aphidius ervi, are more attracted to honeydew from H. defensa‐infected aphids; though larger honeydew amounts may slightly deter searching.
Desiré Macheda, Alexandre Foito, Katharine F. Preedy, Colin J. Alexander, Ankush Prashar, Alison J. Karley   +5 more
wiley   +1 more source

Screen-printed electrode-based electrochemical detector coupled with in-situ ionic-liquid-assisted dispersive liquid–liquid microextraction for determination of 2,4,6-trinitrotoluene [PDF]

, 2013
A novel method is reported, whereby screen-printed electrodes (SPELs) are combined with dispersive liquid–liquid microextraction. In-situ ionic liquid (IL) formation was used as an extractant phase in the microextraction technique and proved to be a ...
Banks, Craig E., Canals, Antonio, Fernández Martínez, Elena, Iniesta, Jesus, Metters, Jonathan P., Vidal, Lorena   +5 more
core   +2 more sources

Magnetic deep eutectic solvents in microextraction techniques

TrAC Trends in Analytical Chemistry, 2022
Magnetic deep eutectic solvents (MDESs) have recently produced a torrent of pioneering applications in endless areas of sample preparation. By including a magnetic nanomaterial (e.g., magnetic nanoparticles) or a paramagnetic anion (e.g., [FeCl4]-) in their structure, MDESs exhibit a strong response under the application of an external magnetic field ...
Miguel Ángel Aguirre, Antonio Canals
openaire   +2 more sources

An Easy Method to Sample Headspace Pheromones in the Field

Ethology, EarlyView.
Females of the orb‐web spider Argiope bruennichi produces a pheromone to attract males for mating. Most of our knowledge about the pheromone and its strategical use by the females is known from the laboratory. While we have confidence in the validity of these results, we wanted to make sure and measure pheromones in the field.
Zoe Dössel, Katharina Weiss, Jutta M. Schneider   +2 more
wiley   +1 more source

Hyphenation of single-drop microextraction with laser-induced breakdown spectrometry for trace analysis in liquid samples: a viability study [PDF]

, 2015
In this work, an analytical methodology based on single drop microextraction (SDME) followed by Laser-Induced Breakdown Spectrometry (LIBS) has been tested for trace metal determination in liquid samples.
Aguirre Pastor, Miguel Ángel, Canals, Antonio, Hidalgo, Montserrat, Nikolova, H.   +3 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

Natural‐based antioxidants in cosmeceuticals: Extraction, bioavailability and skin ageing applications

International Journal of Cosmetic Science, EarlyView.
Natural antioxidants from plants, fruits, seeds and fungi combat ageing by neutralizing free radicals, boosting collagen and protecting against UV damage. Enhanced by green extraction and smart delivery systems, they offer powerful anti‐inflammatory and antimicrobial benefits.
Hossein Omidian, Arnavaz Akhzarmehr, Charise Dallazem Bertol   +2 more
wiley   +1 more source

Vortex-assisted dispersive liquid–liquid microextraction for the determination of molybdenum in plants by inductively coupled plasma optical emission spectrometry [PDF]

, 2016
A new procedure for determining trace concentrations of Mo in plants combining dispersive liquid–liquid microextraction and inductively coupled plasma optical emission spectrometry is proposed here.
Aguirre Pastor, Miguel Ángel, Barros, Juan A.V.A., Canals, Antonio, Kovachev, Nikolay, Nóbrega, Joaquim A.   +4 more
core   +2 more sources

A Plant‐Based Platform for the Production of Bark Beetle Pheromones

Plant Biotechnology Journal, EarlyView.
ABSTRACT Bark beetle species of the genera Ips and Dendroctonus represent a threat to forests in both North America and Europe. Under normal circumstances, these beetles recycle dying trees into nutrients, but under certain conditions, growing populations can overcome healthy tree defenses and cause severe economic loss in forestry.
Abraham Ontiveros‐Cisneros, Jule Salfeld, Sofia Paulsson, Bao‐Jian Ding, Hong‐Lei Wang, Magne Friberg, Christer Löfstedt, Olivier Van Aken   +7 more
wiley   +1 more source