Results 31 to 40 of about 4,299 (226)

Application of Dispersive Liquid-Liquid Microextraction in Forensic Toxicological Analysis [PDF]

Fayixue Zazhi, 2019
Currently, the main sample pretreatment methods for forensic toxic analysis are liquid-liquid extraction （LLE） and solid-phase extraction （SPE）. As a simple, convenient, and low-cost LLE method, dispersion liquid-liquid microextraction （DLLME） has high ...
YANG Yu, ZHANG Yun-feng, LI Xin-tong，et al.
doaj   +1 more source

Screen-printed electrode based electrochemical detector coupled with ionic liquid dispersive liquid–liquid microextraction and microvolume back-extraction for determination of mercury in water samples [PDF]

, 2015
A novel approach is presented, whereby gold nanostructured screen-printed carbon electrodes (SPCnAuEs) are combined with in-situ ionic liquid formation dispersive liquid–liquid microextraction (in-situ IL-DLLME) and microvolume back-extraction for the ...
Agustín Costa-García, Antonio Canals, Aragay, Arduini, Baghdadi, Bagheri, Bernalte, Bernalte, Campbell, Daniel Martín-Yerga, Elena Fernández, Fabre, Fernández, Gao, Gao, Heyden, Jia, Khaled, Kokosa, Laschi, Leopold, Li, Lorena Vidal, Mandil, Martín-Yerga, Martín-Yerga, Martínez-Paredes, María del Carmen Blanco, Montgomery, Niu, Pena-Pereira, Pena-Pereira, Priego Capote, Rezaee, Stanisz, Trujillo-Rodríguez, Yan, Yao   +37 more
core   +2 more sources

Speciation analysis of mercury in water samples by dispersive liquid-liquid microextraction coupled to capillary electrophoresis [PDF]

, 2014
In this study, a method of pretreatment and speciation analysis of mercury by dispersive liquid-liquid microextraction along with CE was developed. The method was based on the fact that mercury species including methylmercury (MeHg), ethylmercury (EtHg),
Andruch, Chen, Chen, Chen, dos Santos, Duarte, Duarte, Fan, Gao, Geng, Ito, Jackson, Jia, Kubáň, Leopold, Li, Li, Li, Li, Li, Louise, Ma, Margetínová, Martin, Mishra, Pena-Pereira, Percy, Rivaro, Ructnev, Sarıca, Song, Sánchez, Wei, Wen, Wen, Xu, Yan, Yin, Zhou   +38 more
core   +1 more source

Dispersive liquid-liquid microextraction coupled with magnetic nanoparticles for extraction of zearalenone in wheat samples [PDF]

Nanochemistry Research, 2017
A new, sensitive and fast dispersive liquid-liquid microextraction (DLLME) coupled with micro-solid phase extraction (μ-SPE) was developed for determination of zearalenone (ZEN) in wheat samples.
Mitra Amoli-Diva, Zohreh Taherimaslak, Mehdi Allahyari, Kamyar Pourghazid   +3 more
doaj   +1 more source

A sensitive and selective method for determination of gold(III) based on electrothermal atomic absorption spectrometry in combination with dispersive liquid–liquid microextraction using dicyclohexylamine [PDF]

, 2010
A combined method with dispersive liquid–liquid microextraction (DLLME) and electrothermal atomic absorption spectrometry (ETAAS) has been developed for determining gold(III).
Kagaya Shigehiro, Takata Daisuke, Tohda Koji, Yoshimori Torajiro, 神原 貴樹, 神原 貴樹   +5 more
core   +1 more source

Comparison of Two Liquid-Liquid Microextractions for the Detection of Crocin in the Saffron and Biological Samples Using UV- Vis Spectrophotometry [PDF]

Iranian Journal of Chemistry & Chemical Engineering, 2018
In this work, two approaches based on Dispersive Liquid-Liquid MicroExtraction (DLLME) and Dispersive Liquid-Liquid MicroExtraction based on Solidification of Floating Organic Drop (DLLME-SFO) were compared for the extraction and preconcentration of ...
Somayeh Heydari
doaj  

Solid-phase extraction combined with dispersive liquid-liquid microextraction for the analysis of glucocorticoids in environmental waters using liquid chromatography-tandem mass spectrometry

Journal of Chromatography Open, 2023
This paper illustrates an enrichment procedure based on the combination of solid phase extraction (SPE) with dispersive liquid-liquid microextraction (DLLME) for the determination of ng/L concentration levels of glucocorticoids in river water samples. In
Lorenzo Antonelli, Chiara Dal Bosco, Massimo Giuseppe De Cesaris, Nina Felli, Elena Lucci, Alessandra Gentili   +5 more
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Optimization of DLLME Extraction Parameters for Pesticides Analysis by High Performance Liquid Chromatography

World Congress on Civil, Structural, and Environmental Engineering, 2022
© 2022, Avestia Publishing. All rights reserved.Pesticides have been used widely all over the world for centuries to increase agricultural production and to combat harmful pests. Pesticides used for agriculture, household, and public health sectors eventually reach water bodies, posing a risk to human health and the environment even in micro ...
Dadaşer Çelik, Filiz, Altıparmak, Ezgi, Yılmaz, Emine, Ateş, Nuray   +3 more
openaire   +3 more sources

Introduction and Review of Liquid-Liquid Microextraction Method, Development and Applications in Sample Preparation and Extraction

تحقیقات نظام سلامت, 2022
Dispersive liquid-liquid microextraction (DLLME) is a novel sample-preparation technique that provides high enrichment factors from the low volume of aqueous samples.
Sara Karimi-Zeverdegani, Samane Khorshidikia, Zohreh Mohebian   +2 more
doaj  

Determination of Aflatoxins B1 and B2 in Powdered Milk Using Modified Liquid Chromatography Method [PDF]

Journal of Kerman University of Medical Sciences, 2014
Background & Aims: In this study, using a liquid-liquid microextraction method for pre-concentration trace amounts of aflatoxins, the amount of Aflatoxins B1 and B2 in powdered milk was determined.
A Amini, D Afzali-Grooh, M Chamsaz
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