Journal ArticleDOI
Determination of organic compounds in water using dispersive liquid-liquid microextraction
Mohammad Rezaee,Yaghoub Assadi,Mohammad Reza Milani Hosseini,Elham Aghaee,Fardin Ahmadi,Sana Berijani +5 more
TLDR
The ability of DLLME technique in the extraction of other organic compounds such as organochlorine pesticides, organophosphorus pesticides and substituted benzene compounds were studied.About:
This article is published in Journal of Chromatography A.The article was published on 2006-05-26. It has received 2959 citations till now. The article focuses on the topics: Extraction (chemistry) & Aqueous two-phase system.read more
Citations
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Bubble puzzles: From fundamentals to applications
TL;DR: In this article, the authors sketch their personal scientific bubble journey, starting with single-bubble sonoluminescence, continuing with sound emission and scattering of bubbles, cavitation, snapping shrimp, impact events, air entrainment, and surface micro-and nanobubbles, and finally arriving at effective force models for bubbles and dispersed bubble two-phase flow.
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Vortex-assisted micro-solid-phase extraction followed by low-density solvent based dispersive liquid-liquid microextraction for the fast and efficient determination of phthalate esters in river water samples.
Liang Guo,Hian Kee Lee +1 more
TL;DR: Under the most favorable conditions, good limits of detection and repeatability of extraction (RSDs below 9.2%, n=5) were obtained and the developed method was applied to determine phthalate esters in environmental water samples.
Journal ArticleDOI
Recent developments in sample preparation techniques combined with high-performance liquid chromatography: A critical review
TL;DR: In this paper, the authors compare and contrast sample preparation techniques coupled with high-performance liquid chromatography (HPLC) and describe applications developed in biomedical, forensics, and environmental/industrial hygiene in the last two decades.
Journal ArticleDOI
Simultaneous determination of four phthalate esters in bottled water using ultrasound-assisted dispersive liquid–liquid microextraction followed by GC-FID detection
TL;DR: A simple and rapid sample pretreatment procedure based on ultrasound-assisted dispersive liquid-liquid microextraction for the determination of four phthalate esters in bottled water samples using gas chromatography-flame ionization detection offers a good alternative for routine analysis due to its simplicity and reliability.
Journal ArticleDOI
The present state of coupling of dispersive liquid–liquid microextraction with atomic absorption spectrometry
TL;DR: In this article, a review is devoted to the coupling of dispersive liquid-liquid microextraction with atomic spectroscopy, where the basic principles of the DLLME technique are briefly explained and experimental factors affecting the extraction efficiency, such as type and volume of the extraction and dispersive solvent, ionic strength, extraction time, centrifugation time and rate, as well as applications of surfactants and chelating reagents are discussed.
References
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Journal ArticleDOI
Solid phase microextraction with thermal desorption using fused silica optical fibers
Journal ArticleDOI
Solvent microextraction into a single drop.
TL;DR: An analytical technique is described which combines solvent extraction with gas chromatographic (GC) analysis in a simple and inexpensive apparatus involving very little solvent consumption and is in good agreement with a convective-diffusive kinetic model.
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Analytical chemistry in a drop. Solvent extraction in a microdrop.
Hanghui Liu,Purnendu K. Dasgupta +1 more
TL;DR: This unique microextraction system is simple and flexible, permits automated backwashing, consumes only microquantities of organic solvents, and is capable of being coupled with other analytical systems.
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Liquid-Phase Microextraction in a Single Drop of Organic Solvent by Using a Conventional Microsyringe
Y. He and,Hian Kee Lee +1 more
TL;DR: In this article, two modes of liquid-phase microextraction (LPME) were developed for capillary gas chromatography, i.e., static and dynamic LPME, which involve the use of very small amounts of organic solvent in a conventional microsyringe.
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Mass Transfer Characteristics of Solvent Extraction into a Single Drop at the Tip of a Syringe Needle
TL;DR: In this article, the authors measured the amount of a sample compound extracted into a 1-μL drop of n-octane suspended in a stirred aqueous solution from the tip of a microsyringe needle.