نتایج جستجو برای: ultrasound assisted microextraction

تعداد نتایج: 237824  

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: :international journal of environmental research 2014
h. sereshti s. bakhtiari r. toghyani s. samadi t. besharati-seidani

the ultrasound assisted emulsification microextraction (usaeme) method followed byinductively coupled plasma-atomic emission spectrometry (icp-aes) was used for preconcentration anddetermination of bismuth (bi), indium (in) and lead (pb) in the plant azolla filiculoides lam. calix [4] pyrrole was used as a chelating agent and tetrachloroethylene was selected as extraction solvent. the main para...

Journal: :international journal of environmental research 0
h. sereshti department of chemistry, faculty of science, university of tehran, tehran, iran s. bakhtiari department of chemistry, faculty of science, university of tehran, tehran, iran r. toghyani department of chemistry, faculty of science, university of tehran, tehran, iran s. samadi department of chemistry, faculty of science, university of tehran, tehran, iran t. besharati-seidani department of chemistry, faculty of science, university of guilan, 41335-1914, rasht, iran n.o. mahmoodi department of chemistry, faculty of science, university of guilan, 41335-1914, rasht, iran

the ultrasound assisted emulsification microextraction (usaeme) method followed byinductively coupled plasma-atomic emission spectrometry (icp-aes) was used for preconcentration anddetermination of bismuth (bi), indium (in) and lead (pb) in the plant azolla filiculoides lam. calix [4] pyrrole was used as a chelating agent and tetrachloroethylene was selected as extraction solvent. the main para...

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 ...

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...

Journal: :European heart journal 2014
Rolf P Engelberger Nils Kucher

Pulmonary embolism remains a common and potentially life-threatening disease. For patients with intermediate- and high-risk pulmonary embolism, catheter-based revascularization therapy has emerged as potential alternative to systemic thrombolysis or surgical embolectomy. Ultrasound-assisted catheter-directed thrombolysis is a contemporary catheter-based technique and is the focus of the present...

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