Results 191 to 200 of about 28,905 (244)

VOC analysis in soils – Extending SPME to SPME-trap and SPME-trap with enrichment.

2020
<p>The ability of an agricultural soil to function and sustainably provide an increasing food supply for a rapidly increasing global population has become of vital worldwide importance. Traditionally, soil health has been determined on a physico-chemical basis with biological characteristics often being ignored.
Robert Brown, Jan Peter Mayser, Caroline Widdowson, Dave Chadwick, Davey Jones   +4 more
openaire   +1 more source

SPME in lipid analysis

2023
The progress made in sample preparation protocols in lipidomics studies has led to a more profound understanding of the structure of lipids, and also the interactions and involvement of many bioactive lipid molecules in cellular processes. In this chapter, the overview of different solutions and advancements of SPME technology for implementation into ...
Warmuzińska, N., Łuczykowski, K., Bojko, B.   +2 more
openaire   +2 more sources

Phytoscreening with SPME: Variability Analysis

International Journal of Phytoremediation, 2015
Phytoscreening has been demonstrated at a variety of sites over the past 15 years as a low-impact, sustainable tool in delineation of shallow groundwater contaminated with chlorinated solvents. Collection of tree cores is rapid and straightforward, but low concentrations in tree tissues requires sensitive analytics.
Matt A, Limmer, Joel G, Burken
openaire   +2 more sources

Analysis of Echinacea flower volatile constituents by HS-SPME-GC/MS using laboratory-prepared and commercial SPME fibers

Journal of Essential Oil Research, 2019
HS-SPME-GC/MS has been widely used in herbs and spices for essential oil analysis. This paper reports on the utility of HS-SPME method for profiling of volatile compounds from Echinacea flower using commercial and laboratory-prepared SPME fibers, and ...
Melek Merdivan, Paniz Tashakkori, Jared L Anderson   +2 more
exaly   +2 more sources

Spme Techniques for Biomedical Analysis

Bioanalysis, 2015
Biomedical analyses of drugs and their metabolites are important in new drug development, therapeutic drug monitoring and forensic toxicology. In these analyses, sample preparation is very important to isolate target compounds from complex biological matrices and markedly influences the reliability and accuracy of determination.
openaire   +2 more sources

Optimization of SPME for Analysis of Trichloroethylene in Rat Blood and Tissues by SPME‐GC/MS

Instrumentation Science & Technology, 2005
Abstract Trichloroethyene (TCE) is a small halogenated compound that has been used extensively as a metal degreaser, dry cleaning agent, and all‐purpose solvent. As a result of its widespread use, TCE is commonly found in the environment. TCE has limited water solubility; therefore, the compound is able to partition into drinking water.
Amy M. Dixon, Stacy D. Brown, S. Muralidhara, James V. Bruckner, Michael G. Bartlett   +4 more
openaire   +1 more source

Further research on the photo-SPME of triclosan

Analytical and Bioanalytical Chemistry, 2006
In this study the photoinduced degradation of triclosan has been investigated by photo-solid-phase microextraction (photo-SPME). In photo-SPME, photodegradation is carried out on the SPME fibre containing the target compound. Triclosan was extracted from aqueous solutions by use of polydimethylsiloxane SPME fibres and these were subsequently exposed to
Lucia, Sánchez-Prado, Maria, Llompart, Marta, Lores, Maria, Fernández-Alvarez, Carmen, García-Jares, Rafael, Cela   +5 more
openaire   +2 more sources

Applications of In-tube SPME for Bioanalysis

2023
Liquid chromatography-tandem mass spectrometry (LC-MS/MS) has become the reference technique for bioanalysis, due to its high sensitivity and selectivity. In bioanalysis, a sample preparation step is usually necessary to eliminate most endogenous compounds and to concentrate the target analytes that often exist at trace levels in biological matrixes ...
Maria Eugênia Costa Queiroz, Israel Donizeti de Souza, Igor Gustavo Carvalho Oliveira, Caroline Fernandes Grecco   +3 more
openaire   +1 more source

Development of new SPME fibers by sol–gel technology for SPME-HPLC determination of organometals

Analytica Chimica Acta, 1999
Solid-phase micro-extraction (SPME), has advantages of simplicity, low cost, ease of use and rapid pre-concentration and extraction compared to other sample preparation techniques. The technique has found limited use in high performance liquid chromatographic applications because of the unavailability of fibers that are stable and durable in strong ...
Thompson P. Gbatu, Karen L. Sutton, Joseph A. Caruso   +2 more
openaire   +1 more source

Solid Phase Microextraction (SPME)

The Chemical Educator, 1997
In the past 20 years the number of instrumental techniques available to the chemist has grown exponentially. In order to help our readers keep up with this rapidly growing field, tutorial articles on chemical instrumentation will be a regular feature of The Chemical Educator.
Janusz Pawliszyn, Barbara Pawliszyn, Michael Pawliszyn   +2 more
openaire   +1 more source