Results 21 to 30 of about 48,147 (228)

Amostragem de compostos orgânicos voláteis no ar utilizando a técnica de microextração em fase sólida Sampling of volatile organic compounds in air by solid phase microextraction

open access: yesQuímica Nova, 2005
The sampling of volatile organic compounds using solid phase microextraction is reviewed and its principles are described. The development and application of solid phase microextraction in the sampling of VOCs are presented and discussed.
Fabrício Vilela Parreira   +1 more
doaj   +1 more source

Novel Applications of Microextraction Techniques Focused on Biological and Forensic Analyses

open access: yesSeparations, 2022
In recent years, major attention has been focused on microextraction procedures that allow high recovery of target analytes, regardless of the complexity of the sample matrices.
Cristian D’Ovidio   +11 more
doaj   +1 more source

Speciation without chromatography: Part I. Determination of tributyltin in aqueous samples by chloride generation, headspace solid-phase microextraction and inductively coupled plasma time of flight mass spectrometry [PDF]

open access: yes, 2001
An analytical procedure was developed for the determination of tributyltin in aqueous samples. The relatively high volatility of the organometal halide species confers suitability for their headspace sampling from the vapour phase above natural waters or
Lam, J.   +4 more
core   +1 more source

Rethinking the Applications of Ionic Liquids and Deep Eutectic Solvents in Innovative Nano-Sorbents

open access: yesFrontiers in Chemistry, 2021
With the development of green chemistry and nano materials, new alternatives to traditional volatile solvents are one of many important hotspots in the field of nano materials.
Lirong Nie   +3 more
doaj   +1 more source

Determination of pesticides in fruit and fruit juices by chromatographic methods. An overview [PDF]

open access: yes, 2011
In order to combat a variety of pests, pesticides are widely used in fruits. Several extraction procedures (liquid extraction, single drop microextraction, microwave-assisted extraction, pressurized liquid extraction, supercritical fluid extraction ...
Delerue-Matos, Cristina   +3 more
core   +1 more source

Solid-Phase Microextraction

open access: yes
Citation: 'solid-phase microextraction' in the IUPAC Compendium of Chemical Terminology, 5th ed.; International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. 10.1351/goldbook.10276 • License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International for individual terms.
Khaled Murtada, Janusz Pawliszyn
  +5 more sources

Application of Sorbent-Based Extraction Techniques in Food Analysis

open access: yesMolecules, 2023
This review presents an outline of the application of the most popular sorbent-based methods in food analysis. Solid-phase extraction (SPE) is discussed based on the analyses of lipids, mycotoxins, pesticide residues, processing contaminants and flavor ...
Natalia Drabińska   +3 more
doaj   +1 more source

Chemical derivatization processes applied to amine determination in samples of different matrix composition [PDF]

open access: yes, 2015
No abstract ...
Biziuk, Marek   +3 more
core   +1 more source

Current Trends in Fully Automated On-Line Analytical Techniques for Beverage Analysis

open access: yesBeverages, 2019
The determination of target analytes in complex matrices such as beverages requires a series of analytical steps to obtain a reliable analysis. This critical review presents the current trends in sample preparation techniques based on solid phase ...
Karen Mejía-Carmona   +2 more
doaj   +1 more source

A method validation for simultaneous determination of phthalates and bisphenol A released from plastic water containers [PDF]

open access: yes, 2019
Phthalates (or phthalate esters, PAEs) and bisphenol A (BPA) are widely used in various industries, particularly in the fields of cosmetics and packaging, and they increase the malleability and workability of materials.
Avino, P.   +4 more
core   +1 more source

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