نتایج جستجو برای: liquid micro extraction

تعداد نتایج: 481406  

Journal: :Nippon Shokuhin Kagaku Kogaku Kaishi 2018

Journal: :journal of chemical and petroleum engineering 2010
ali salimi-khorshidi hosein abolghasemi mohammad ghannadi

based on the importance of drops' behavior in liquid-liquid extraction, the maximum sauter mean drop diameter has been investigated and correlated in a counter-current spray extraction column with two chemical systems. spargers were set of nozzles in all experiments. studying the effects of several parameters on drops size, some correlations were estimated by the last available version of softw...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور استان فارس - دانشکده علوم پایه 1389

در این تحقیق یک روش استخراج فاز جامد ساده، حساس و مطمئن برای استخراج، پیش تغلیظ و اندازه گیری سریع و آسان مقادیر بسیار کم مس وسرب با استفاده از? - آلومینای پوشانده شده با سدیم دودسیل سولفات اصلاح شده با لیگاند بیس (2- هیدروکسی استوفنون)- 1و6 هگزان دی ایمین پیشنهاد گردید. اثر پارامترهای مختلف از جمله ph، مقدار لیگاند، مقدار ? - آلومینا و سدیم دودسیل سولفات، نوع، غلظت و حجم شوینده، ضریب تغلیظ، تک...

Journal: :Microchemical Journal 2021

This work proposes a rapid, simple and accurate analytical method for quantification of the organophosphate flame retardant triphenylphosphate (TPhP) biomarker diphenylphosphate (DPhP) in whole blood by effective sample preparation followed liquid chromatography-tandem mass spectrometry (LC-MS/MS) quantification. A liquid–liquid microextraction (µLLE) from 250 µL mouse was developed validated t...

Journal: :iranian journal of analytical chemistry 2014
majid haji hosseini mohammad reza rezaei mohammad rezaee peyman asaadi khatereh ashtari

this study propose a new analytical protocol for the determination of benzene, xylene, toluene and styrene in water samples using homogeneous liquid-liquid microextraction via flotation assistance (hllme-fa) technique followed by gas chromatography-mass spectrometry (gc-ms). in this research, a special extraction cell was designed to facilitate collection of the low-density solvent extraction. ...

2012
Carmine Clemente John J. Soraghan

The effect of target micro-motions on the Synthetic Aperture Radar signal results in micro-Doppler target signatures. These micro-Doppler signatures can be a useful source of information for target classification. However the presence of stationary target and noise in the scene makes the extraction of the micro-Doppler signature a difficult challenge. In this paper a micro-Doppler signature ext...

Journal: :Molecules 2010
Patricia Garcia-Salas Aranzazu Morales-Soto Antonio Segura-Carretero Alberto Fernández-Gutiérrez

This paper reviews the phenolic-compound-extraction systems used to analyse fruit and vegetable samples over the last 10 years. Phenolic compounds are naturally occurring antioxidants, usually found in fruits and vegetables. Sample preparation for analytical studies is necessary to determine the polyphenolic composition in these matrices. The most widely used extraction system is liquid-liquid ...

Journal: :Energies 2021

Hydrodynamics plays a major role in transport of heat and mass transfer microchannels. This includes flow patterns regimes which the micro-channels are operated. The have impact properties. Another important aspect is pressure drop micro-channels. In present review, experimental Computational Fluid Dynamics (CFD) studies covering all above aspects been covered. effect geometrical parameters lik...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2006
mohammad reza yaftian michel burgard

the kinetics of the potassium thiocyanate transport mediated by dicyclohexyl-18-crown-6 (l) through a bulk liquid membrane is studied experimentally and theoretically. the proposed model is based on the assumption of a pure diffusion of the complex salt [k·l]+scn¯ through the liquid membrane stagnant films at the interfaces. it illustrates the connection between liquid-liquid extraction equilib...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید