نتایج جستجو برای: liquid phase micro extraction

تعداد نتایج: 1024711  

Journal: :iranian journal of toxicology 0
مصطفی دلاور mostafa delavar department of pharmacology, arak university of medical sciences, arak, iran. مجید رمضانی majid ramezani department of chemistry, arak branch islamic- azad university, arak, iran. مهدی عبدالهی mahdi abdollahi msc, expert of control laboratory food and beverage, decorative, hygienic products of arak's medical sciences university. عاطفه نوابی atefeh navabi msc, expert of control laboratory food and beverage, decorative, hygienic products of arak's medical sciences university. عبدالرضا بادرستانی abdolreza baderestani msc, expert of control office on food and beverage, decorative, hygienic products of arak’s medical sciences university. شکوفه هداوند shoukofeh hadavand msc, chemistry expert advisor, arak university of medical sciences, arak, iran. مسعوده صادقی

background: cold-induced aggregation micro extraction based (ciame) based on ionic liquid was used as a rapid and simple method for determination trace amounts of cadmium and lead in milk powder by analysis with flame atomic absorption spectrometry (faas). methods: sample solution containing of cd2+ and pb2+ in dynamic range, phosphate buffer (ph = 9, 3 ml), diethyl dithiocarbamate (complexing ...

Journal: :journal of chemical health risks 0
m. khoeini sharifabadi m. saber tehrani a. mehdinia p. abroomand azar s. waqif husain

a simple and sensitive, solid-phase extraction method for the removal of citalopram drug from waste water has been developed by using magnetic nanoparticles modified with surfactant sodium dodecyl sulfate. these magnetic nanoparticles have shown great adsorptive tendency towards citalopram drug. the effect of different parameters influencing the extraction efficiency of this drug were investiga...

Abdolreza Baderestani, Atefeh Navabi, Mahdi Abdollahi, Majid Ramezani, Masoodeh Sadeghi, Mostafa Delavar, Shoukofeh Hadavand,

Background: cold-induced aggregation micro extraction based (CIAME) based on ionic liquid was used as a rapid and simple method for determination trace amounts of cadmium and lead in milk powder by analysis with flame atomic absorption spectrometry (FAAS). Methods: Sample solution containing of Cd2+ and Pb2+ in dynamic range, phosphate buffer (pH = 9, 3 ml), diethyl dithiocarbamate (complexin...

Ahad Ghaemi, Amir Hosein Tahershamsi Mansour Shirvani,

In this study, liquid-liquid extraction process in a Kuhni extraction column was modeled and simulated. A non-equilibrium dynamic model was developed for modeling liquid-liquid extraction processes based on a rate-based model. The model equations are inclusive of partial and ordinary differential equations which were discretized in column height direction. The population balance model was used ...

A comprehensive study pertaining to the emulsion liquid membrane (ELM) extraction process to enrich dilute aqueous solutions of silver salt is presented. The study has highlighted the importance and influence of membrane composition for maximizing the extraction of Ag+ ions. The liquid membrane was made up of Cyanex-302 as an extractant and the industrial solvent mainly consists of p...

Journal: :iranian journal of analytical chemistry 2015
mohammadreza hadjmohammadi maede asadi

a simple, inexpensive and efficient method was used for extraction and determination of fexofenadine and levocetirizine with three–phase hollow fiber liquid-phase microextraction and high-performance liquid chromatography. several parameters influencing the extraction recoveries such as the nature of organic extraction solvent, ph of donor and acceptor phases, stirring rate, extraction time and...

Journal: :journal of membrane science and research 0
saeed laki department of petrochemical engineering, amirkabir university of technology (tehran polytechnic), mahshahr campus, mahshahr, iran ali kargari membrane processes research laboratory (mprl), department of chemical engineering, amirkabir university of technology (tehran polytechnic), tehran, iran

a comprehensive study pertaining to the emulsion liquid membrane (elm) extraction process to enrich dilute aqueous solutions of silver salt is presented. the study has highlighted the importance and influence of membrane composition for maximizing the extraction of ag+ ions. the liquid membrane was made up of cyanex-302 as an extractant and the industrial solvent mainly consists of paraffinic a...

امیدی, فریبرز, خادم, منیره, رامین ثابت, مریم, شاه طاهری, سید جمال الدین, پورحسین, مهران, گلبابایی, فریده,

Introduction: Measurement of pesticides in biological matrices is become a serious challenge for researchers due to their very low concentration in different matrices. The aim of this study was to develop a new sample preparation method with high accuracy and validity and short retention time for determination of diazinon. Material and Method: Dispersive liquid-liquid micro-extraction techniqu...

Journal: :Bunseki Kagaku 2022

In the conventional multiphase flow, immiscible having a liquid-liquid interface, two liquids are merged in flow path to form interface. The two-phase separation mixed solution has property of phase-separating from one phase phases by changing temperature/pressure, and phase-separates into upper lower batch-type vessel. By while sending this micro-space region, interface is formed obtained. Thi...

Journal: :Food chemistry 2015
L Ruiz-Rodríguez A Aguilar A N Díaz F G Sánchez

Imazalil ([1-(β-allyloxy-2,4-dichlorophenethyl)imidazole]) is a systemic chiral fungicide used in postharvest protection of citruses against fungi development for during storage and transportation. The chemical structure of imazalil shows an asymmetric carbon in the C7 position. These enantiomers may have different toxicity. A method for both chiral enantiomers extraction and determination in o...

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