Results 161 to 170 of about 5,024,272 (209)

Liquid-Phase Microextraction or Electromembrane Extraction?

open access: yesAnalytical Chemistry, 2019
Isolation of substances by liquid-phase microextraction (LPME) or electromembrane extraction (EME) is becoming more and more important in analytical chemistry. However, the understanding of the mass transfer in LPME and EME is limited, especially for highly concentrated samples.
Libin Wan   +5 more
openaire   +4 more sources

Liquid-Phase Microextraction

open access: yes, 2017
Liquid-phase microextraction (LPME) has emerged over the last 15–20 years as one of the simplest and most easily implemented techniques of sample preparation in the determination of organic analytes in a variety of matrices. This article summarizes the historical developments and various modes of the technique, method development, recent trends, and ...
Przyjazny, Andrzej, Andrzej Przyjazny
openaire   +3 more sources

Liquid–phase microextraction: A review of reviews

Microchemical Journal, 2019
Abstract Sample preparation is an important step in chemical analysis. It is generally done to deal with problems associated with the nature of the matrix, low analyte concentrations in real samples or analyte features incompatible with the instrumentation. Classical methods of extraction consume large volumes of hazardous solvents and other reagents
Muhammad Sajid   +2 more
exaly   +2 more sources

Liquid-phase microextraction – The different principles and configurations

TrAC - Trends in Analytical Chemistry, 2019
Abstract Liquid-phase microextraction is a miniaturized form of traditional liquid–liquid extraction in which the extracting organic phase is limited to a few microliters for extraction of target analytes. Despite the advantages of solid-phase microextraction, liquid-phase microextraction was also rapidly become a popular method due to its unique ...
Yadollah Yamini   +2 more
exaly   +2 more sources

Bioanalysis of pharmaceuticals using liquid-phase microextraction combined with liquid chromatography–mass spectrometry

open access: yesJournal of Pharmaceutical and Biomedical Analysis, 2020
In this paper, we review recent research articles on liquid-phase microextraction of drug substances from biological fluids, such as plasma, serum, urine, and saliva.
Frederik A Hansen   +2 more
exaly   +2 more sources

In-vessel headspace liquid-phase microextraction

Analytica Chimica Acta, 2021
A new mode of headspace liquid-phase microextraction termed in-vessel headspace liquid-phase microextraction (IV-HS-LPME) has been developed. A plastic vessel was used as a holder for an extraction phase. Problems with drop stability, limitations in the stirring speed, and too little volume of the acceptor phase have been completely eliminated.
Aimad-Eddine Tamen, Andriy Vishnikin
openaire   +2 more sources

Application of hollow fiber liquid phase microextraction and dispersive liquid–liquid microextraction techniques in analytical toxicology [PDF]

open access: yesJournal of Food and Drug Analysis, 2016
The recent developments in hollow fiber liquid phase microextraction and dispersive liquid–liquid microextraction are reviewed. Applications of these newly emerging developments in extraction and preconcentration of a vast category of compounds including
Anahita Nosrati
exaly   +2 more sources

Ferrofluid-based liquid-phase microextraction

Journal of Chromatography A, 2010
A new mode of liquid-phase microextraction based on a ferrofluid has been developed. The ferrofluid was composed of silica-coated magnetic particles and 1-octanol as the extractant solvent. The 1-octanol was firmly confined within the silica-coated particles, preventing it from being lost during extraction.
Shi, Z.-G., Zhang, Y., Lee, H.K.
openaire   +2 more sources

Chemical reactions in liquid-phase microextraction

Journal of Chromatography A, 2009
In recent years, liquid-phase microextraction (LPME), a microscale implementation of liquid-liquid extraction, has become a very popular sample pretreatment technique because it combines extraction and enrichment, and is inexpensive, easy to operate and nearly solvent-free.
Li, Xu   +2 more
openaire   +2 more sources

Gas flow headspace liquid phase microextraction

Journal of Chromatography A, 2009
There is a trend towards the use of enrichment techniques such as microextraction in the analysis of trace chemicals. Based on the theory of ideal gases, theory of gas chromatography and the original headspace liquid phase microextraction (HS-LPME) technique, a simple gas flow headspace liquid phase microextraction (GF-HS-LPME) technique has been ...
Cui, Yang   +6 more
openaire   +4 more sources

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