Results 61 to 70 of about 60,478 (213)

Carbon Nanohorn Suprastructures on a Paper Support as a Sorptive Phase

Molecules, 2018
This article describes a method for the modification of paper with single-wall carbon nanohorns (SWCNHs) to form stable suprastructures. The SWCNHs form stable dahlia-like aggregates in solution that are then self-assembled into superior structures if ...
Julia Ríos-Gómez, Beatriz Fresco-Cala, María Teresa García-Valverde, Rafael Lucena, Soledad Cárdenas   +4 more
doaj   +1 more source

Ionic Liquid-Assisted DLLME and SPME for the Determination of Contaminants in Food Samples

Separations, 2022
Developing effective and green methods for food analysis and separation has become an urgent issue regarding the ever-increasing concern of food quality and safety.
Lirong Nie, Chaochao Cai, Runpeng Guo, Shun Yao, Zhi Zhu, Yanchen Hong, Dong Guo   +6 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

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

Mass 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, Adriana Arigò, Giorgio Famiglini, Pierangela Palma, Achille Cappiello   +4 more
wiley   +1 more source

Microextraction-Based Techniques for the Determination of Beta-Blockers in Biological Fluids: A Review

Separations
Sample preparation is a critical step in the analytical process. Apart from the traditional sample cleanup approaches, microextraction-based techniques have attracted much attention in recent years and especially from researchers working in the analysis ...
Styliani Nisyriou, Constantinos K. Zacharis   +1 more
doaj   +1 more source

Recent Advances in Applications of Ionic Liquids in Miniaturized Microextraction Techniques

Molecules, 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

Determination of the chemical composition of tea by chromatographic methods: a review [PDF]

, 2015
Despite the fact that mankind has been drinking tea for more than 5000 years, its chemical composition has been studied only in recent decades. These studies are primarily carried out using chromatographic methods.
Combet, Emilie, Nemzer, Boris V., Yashin, Alexandr Ya, Yashin, Yakov I.   +3 more
core   +1 more source

Host tree preference and performance of the Eurasian spruce bark beetle (Ips typographus) on Scots pine

Pest Management Science, EarlyView.
Ips typographus showed lower reproductive output in an occasional host (Pinus sylvestris) under laboratory conditions, and did not prefer its main host (Picea abies) over P. sylvestris in two‐choice bioassays. Abstract BACKGROUND The Eurasian spruce bark beetle, Ips typographus, is one of the most serious pests of Norway spruce (NS, Picea abies), with ...
Jana Gabriele Burchards, Dineshkumar Kandasamy, Martin Nils Andersson   +2 more
wiley   +1 more source

Cape Gooseberry (Physalis peruviana L.) Volatile Compounds Determination by Vacuum-Assisted Sorbent Extraction (VASE)—Selected Aspects

Molecules
Vacuum-Assisted Sorbent Extraction (VASE) is a novel extraction technique that uses vacuum to facilitate the transfer of volatile compounds from the matrix to the sorbent. This technique was explored for extraction of volatiles from cape gooseberry fruit,
Henryk H. Jeleń, Monika Marcinkowska
doaj   +1 more source

Development of Effervescent-assisted Liquid Phase Microextraction using 1-dodecanol for Determination of Ketoprofen Drug in Water

ASM Science Journal, 2020
A rapid and straightforward method based on effervescent-assisted dispersive liquid-liquid microextraction combined with high-performance liquid chromatography-ultraviolet (HPLC-UV) detection for preconcentration of ketoprofen in water samples was ...
Wan Mohd Afiq Wan Mohd Khalik
doaj   +1 more source