نتایج جستجو برای: ultrasound assisted emulsification microextraction silver

تعداد نتایج: 284277  

2017
Ritu Singh Ashok Kumar Barik

Aim: A new analytical platform combining ultrasound assisted-dispersive liquid-liquid microextraction (US-DLLME) with thin layer chromatography (TLC)-image processing analysis has been proposed. Materials and Methods: Acetylsalicylic acid (ASA) was selected as the model compound to demonstrate the applicability of the proposed method. The complete analysis comprises of three steps: (i) US-DLLME...

A comparative study of ultrasound-assisted extraction (UAE) and hydro-distillation was performed for fast extraction of estragole from tarragon (Artemisia dracunculus L.) dried leaves. Several influential parameters of the UAE procedure in the extraction of estragole (type of solvent, extraction cycles, solvent to material ratio, irradiation time and particle size) were investigated an...

Journal: :Advanced Materials Interfaces 2020

2015
Ting Zhang

Background/introduction Ultrasound and MRI imaging guiding system for Robotic assisted interventional procedures such as needle biopsy and FUS ablation have to be improved to allow a one stop shop multimodality image guidance. A specific holder which has the capability for connecting the application module of the interventional robotic system “INNOMOTION” (IBSmm, CZ) with SIEMENS wireless ultra...

2015
Mojtaba Delfanian Reza Esmaeilzadeh Kenari Mohammad Ali Sahari

The aim of present study was to compare the effects of ultrasound-assisted and microwave-assisted extraction with solvent extraction method on antioxidant activities of jujube (Ziziphus mauritiana Lam.) leaf extracts in stability of sunflower oil during deep frying. The antioxidant activities of the extracts were evaluated by using 2, 2-diphenyl-1-picrylhydrazyl (DPPH˙) radical scavenging and β...

Journal: :Ultrasonics sonochemistry 2014
Ana Mayela Ramos-de-la-Peña Catherine M G C Renard Louise Wicker Julio C Montañez Luis Alfonso García-Cerda Juan Carlos Contreras-Esquivel

An efficient cold-mechanical/sonic-assisted extraction technique was developed for extraction of genipin from genipap (Genipa americana) peel. Ultrasound assisted extraction (285 W, 24 kHz) was performed at 5, 10 and 15 °C for 5, 10 and 15 min. After cold-extraction, genipin was separated from pectin and proteins by aid of fungal pectinesterase. The maximum yield of non-cross-linked genipin was...

Journal: :Lebensmittel-Wissenschaft & Technologie 2021

We report improvements in the extraction of milk phospholipids (MPLs) from beta-serum, a dairy byproduct, by applying ultrasound prior to tertiary amine extraction. Three acoustic intensities (15.53 ± 1.20, 31.76 2.46, or 44.56 3.47 W cm−2) were applied for 4 min before (N,N-dimethylcyclohexylamine, CyNMe2). The extracted lipids fractionated solid phase-microextraction, and recovered MPLs quant...

Journal: :Journal of the American Society for Mass Spectrometry 2015
Sheng-Yu Lin Pin-Shiuan Chen Sarah Y Chang

A simple, rapid, and sensitive method for the detection of posaconazole using dispersive liquid-liquid microextraction (DLLME) coupled to surface-assisted laser desorption/ionization mass spectrometric detection (SALDI/MS) was developed. After the DLLME, posaconazole was detected using SALDI/MS with colloidal gold and α-cyano-4-hydroxycinnamic acid (CHCA) as the co-matrix. Under optimal extract...

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