Results 71 to 80 of about 4,446,653 (191)

Sustainable analytical approaches for microplastics in wastewater, sludge, and landfills: Challenges, fate, and green chemistry perspectives

Advances in Sample Preparation
The effects of microplastics (MPs) in wastewater, sludge, and landfills are analyzed and discussed, focusing on their pathways into the environment. The application of sludge as a soil amendment and the reuse of treated wastewater in agriculture have ...
Maryam Mallek, Damia Barcelo
doaj   +1 more source

Revaluing optical techniques in the light of vortex- and ultrasound-assisted microextraction

Advances in Sample Preparation
The main objective of this review is to provide an overview of the coupling between microextraction techniques (mainly based on the use of vortex and ultrasound) and different optical techniques in order to demonstrate that their combination can be a ...
Natalia A. Gomez, Anabela S. Lorenzetti, Damian A. Uriarte, Carolina Acebal, Juan M. Padró, Antonio Canals, Mariano Garrido, Claudia E. Domini   +7 more
doaj   +1 more source

Artifacts from manganese reduction in rock samples prepared by focused ion beam (FIB) slicing for X-ray microspectroscopic analysis [PDF]

, 2018
. Manganese (Mn)-rich natural rock coatings, so-called rock varnishes, are discussed controversially regarding their genesis. Biogenic and abiogenic mechanisms, as well as a combination of both, have been proposed to be responsible for the Mn oxidation ...
Andreae, Meinrat O, Förster, Jan-David, Jochum, Klaus Peter, Kappl, Michael, Kilcoyne, AL David, Macholdt, Dorothea S, Müller, Maren, Pöhlker, Christopher, Weber, Bettina, Weigand, Markus   +9 more
core  

Natural deep eutectic solvent-based matrix solid-phase dispersion-ultrasound assisted extraction of pesticides in pears and their determination by liquid chromatography-tandem mass spectrometry

Advances in Sample Preparation
In recent years, natural deep eutectic solvents (NADES) have been proposed as sustainable solvents capable of replacing the conventional harmful organic solvents typically used in sample preparation.
Ana Isabel García-Valcárcel, Esther Miguel, Antonio Martín-Esteban   +2 more
doaj   +1 more source

Trace-element analysis of 1000 environmental samples per year using instrumental neutron activation analysis [PDF]

The technology and methods developed at the Plum Brook Reactor to analyze 1000 samples per year and report data on as many as 56 elements are described. The manpower for the complete analysis of 20 to 24 samples per week required only 3 to 3.5 hours per ...
Sheibley, D. W.
core   +1 more source

Online coupling of miniaturized HPLC and high performance thin layer chromatography by a fractionation unit for effect directed analysis

Advances in Sample Preparation
The rising discharge of anthropogenic chemicals into aquatic environments poses a significant threat, necessitating effective monitoring strategies.
Kjell Kochale, Björn Lang, Ricardo Cunha, Thorsten Teutenberg, Torsten C. Schmidt   +4 more
doaj   +1 more source

An approach for optimizing in SITU cosmogenic 10BE sample preparation [PDF]

, 2016
Bierman, PR, Corbett, LB, Rood, DH
core   +1 more source

Multiple-shell amorphous Co/Ni-(PO4)x(OH)y hollow layered double hydroxide for enhanced extraction of some azole antifungals from biological samples

Advances in Sample Preparation
Antifungals drugs are widely used for variety of fungal infections. Extraction and determination of these drugs in biological sample is crucial because of their toxicity, endocrine-disrupting, and cytochrome P450-mediated effects. In addition, developing
Maedeh Saadat, Yadollah Yamini
doaj   +1 more source

Automation of preparation of nonmetallic samples for analysis by atomic absorption and inductively coupled plasma spectrometry [PDF]

For a rapid preparation of solutions intended for analysis by inductively coupled plasma emission spectrometry or atomic absorption spectrometry, an automatic device called Plasmasol was developed.
Willay, G., Wittmann, A.
core   +1 more source

Versatile sorbent materials in sample preparation: Where do we go next?

Advances in Sample Preparation
Continuous advances in sample preparation methods have led to the development of enhanced strategies to address the complexity of diverse matrices in both qualitative and quantitative analyses. These methods are designed to facilitate sample clean-up and
Rafael Oliveira Martins, Maria Flávia Assunção Magalhães, Winnie Evelyn Valeria Perez Vite, Jussara da Silva Alves, Camila Will, Fernando Mauro Lanças   +5 more
doaj   +1 more source