نتایج جستجو برای: ultrasound assisted emulsification microextraction

تعداد نتایج: 239711  

Journal: :Langmuir 2021

The development of porous films with an accessible high specific surface area is important for designing new adsorbents, sensors, or catalyst supports. Here, we describe a simple method to prepare silica foam coating using calcium chloride-assisted evaporation-induced emulsification method. An alcoholic sol containing chloride and poly(ethylene oxide)-based polymer deposited on substrate by dip...

2016
Abolfazl Saleh Neda Sheijooni Fumani Saeideh Molaei Ehsan Abedi Homeira Agah Shirin Rahmanpour

In the present study, antifouling booster biocides, irgarol 1051 and diuron, were measured in seawater and sediments in ports and marinas of Bushehr, Iran. To the best of our knowledge, in the Persian Gulf there is no any record about analysis of these compounds in coastal waters, however there are considerable amount of information about the concentration of antifouling booster biocides in Eur...

Journal: Journal of Herbal Drugs 2010
Afsaneh Yegdaneh, Behzad Zolfaghari

Various novel techniques including ultrasound-assisted extraction, microwave-assisted extraction and supercritical fluid extraction have been developed for the extraction of medicinal plants in order to shorten the extraction time, decrease the solvent consumption, increase the extraction yield, and enhance the quality of extracts. This review was conducted to introduce and compare the conventi...

2017
Muhammad A Mangi Hiba Rehman Vikas Bansal Omer Zuberi

Pulmonary embolism continues as a very common and also presumably life-threatening disorder. For affected individuals with intermediate- as well as high-risk pulmonary embolism, catheter-based revascularization procedures have developed a possible substitute for systemic thrombolysis or for surgical embolectomy. Ultrasound-assisted catheter-directed thrombolysis is an innovative catheter-based ...

The Biqian-10 block, located in Henan Oilfield of Sinopic, contains many thin and interbedded reservoirs, which have been operated by cyclic steam stimulation for 20 years or more. Therefore, it is a challenge to implement the conventional steam flooding. In order to improve the recovery of steam flooding, urea was used to assist steam flooding. Urea can decompose into CO2 and NH3, which are be...

2015
Mengliang Zhang

A method for the determination of trichloroethylene (TCE) in water using portable gas chromatography/mass spectrometry (GC/MS) was developed. A novel sample preparation method, liquid–liquid microextraction assisted solid phase microextraction (LLME–SPME), is introduced. In this method, 20 μL of hexane was added to 10 mL of TCE contaminated aqueous samples to assist headspace SPME. The extracti...

Journal: :Acta poloniae pharmaceutica 2017
Anna Petruczynik Monika Waksmundzka-Hajnos

The review of the RP HPLC analysis of basic psychotropic drugs is presented. It contains sample preparation methods with centrifugation, protein precipitation, liquid-liquid extraction (LLE), dispersive liquid-liquid microextraction (DLLME), solid-phase extraction (SPE), solid-phase microextraction (SPME), microwave-assisted extraction (MAE) and RP-HPLC analysis. Chromatographic behavior of bas...

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