Results 21 to 30 of about 659,295 (264)

Local Static Hold-up in a Rotary Sieved Disc Contactor for a Butyl Acetate-water System

International Journal of Technology, 2016
Considering the importance of liquid static holdup in liquid-liquid extraction columns, a novel experimental approach for predicting the mentioned parameter in a rotary sieved disc contactor has is presented in this research.
Fatemeh Behzad, Hossein Bahmanyar, Seyed Mohammad Ali Mousavian, Hoda Molavi, Fatemeh Fogh   +4 more
doaj   +1 more source

Identification of Phytochemicals from the Water Extract of Eurycoma longifolia Roots using Solid-Liquid and Liquid-Liquid Extraction Based Fractionation Techniques

Acta Chimica Slovenica, 2021
Phytochemicals in the water extract of Eurycoma longofolia roots were identified using both solid-liquid and liquid-liquid extraction based fractionation techniques.
Lee Suan Chua, Abirame Segaran, Hoi Jin Wong   +2 more
doaj   +1 more source

Direct numerical simulations of mass transfer in square microchannels for liquid-liquid slug flow [PDF]

, 2008
Microreactors for the development of liquid-liquid processes are promising technologies since they are supposed to offer an enhancement of mass transfer compared to conventional devices due to the increase of the surface/volume ratio.
Di Miceli Raimondi, Nathalie, Prat, Laurent E., Cognet, Patrick, Gourdon, Christophe   +3 more
core   +1 more source

Mechanism research on technical policy of liquid extraction depressurization development for buried hill reservoirs [PDF]

E3S Web of Conferences, 2021
Most of buried hill reservoirs are in the late stage of water flooding development, especially for this kind of reservoir with large water-oil volume ratio, it is more difficult to develop the residual oil in matrix system.
Guan Huajiao, Shi Xiaoying, Tao Yayuan, Chao Xianqiu, Tan Yumiao   +4 more
doaj   +1 more source

Quantification of sirolimus by liquid chromatography-tandem mass spectrometry using on-line solid-phase extraction [PDF]

, 2002
Quantification of the new immunosuppressant sirolimus (syn. rapamycin; Rapamune((R))) in whole blood by chromatography is essential for its clinical use since no immunoassay is available although monitoring is mandatory.
Fleischer, Claudia, Groetzner, Jan, Spöhrer, Ute, Meiser, Bruno, Seidel, Dietrich, Vogeser, Michael   +5 more
core   +1 more source

Otimização de Diferentes Procedimentos de Preparo de Amostras: Aplicação na Extração de Antioxidantes Presentes em Biodiesel

Orbital: The Electronic Journal of Chemistry, 2015
In this work, different procedures were compared for the extraction of synthetic antioxidants such as propyl gallate (PG), tert-Butylhydroquinone (TBHQ), 3-tert-butyl-4-hydroxyanisole (BHA) and 3,5-di-tert-butyl-4 hydroxytoluene (BHT) from biodiesel ...
Adriana Garabini de Freitas Andrade, Ricardo Pini Caramit, Tatiane Alfonso de Araújo, Luiz Henrique Viana, João Batista Gomes de Souza, Magno A. G. Trindade, Valdir Souza Ferreira   +6 more
doaj   +3 more sources

Exploration of Extraction and Separation Techniques for Routine Trace Analysis of Organic Compounds in Water: Dispersive Liquid-Liquid Microextraction vs Liquid-Liquid Extraction

Journal of Chromatography Open, 2022
Dispersive liquid-liquid microextraction (DLLME) was compared to liquid-liquid extraction (LLE) in terms of the methods’ abilities to analyze samples and ultimately to provide information to an analyst.
Trevor A. Johnson, Michael D.S. Armstrong, A. Paulina de la Mata, James J. Harynuk   +3 more
doaj   +1 more source

Using Membrane-Supported Liquid–Liquid Extraction for the Measurement of Extraction Kinetics

CHIMIA, 2011
Membrane-supported liquid–liquid extraction uses artificial membranes for the generation of a phase interface between the two liquid phases involved in extraction.
Wolfgang Riedl, Daniel Mollet, Gerhard Grundler   +2 more
doaj   +1 more source

Comparison of the Partition Efficiencies of Multiple Phenolic Compounds Contained in Propolis in Different Modes of Acetonitrile–Water-Based Homogenous Liquid–Liquid Extraction

Molecules, 2019
Homogeneous liquid⁻liquid extraction (HLLE) has attracted considerable interest in the sample preparation of multi-analyte analysis. In this study, HLLEs of multiple phenolic compounds in propolis, a polyphenol-enriched resinous substance collected
Wenbin Chen, Xijuan Tu, Dehui Wu, Zhaosheng Gao, Siyuan Wu, Shaokang Huang   +5 more
doaj   +1 more source

Optimization of liquid-liquid Extraction Column Using Genetic Algorithms [PDF]

Engineering and Technology Journal, 2012
In the present study, liquid-liquid extraction column was optimized using Genetic Algorithms as a non-conventional optimization technique, which scores over conventional techniques.
Ali D. Ali
doaj   +1 more source