نتایج جستجو برای: ultra sounic extraction
تعداد نتایج: 222542 فیلتر نتایج به سال:
Abstract A simple, sensitive and feasible cloud-point extraction (CPE) methodology has been developed for the separation and preconcentration of cadmium and lead ions in real samples. The metals in the aqueous solution were complexes with 2-(3- indolyl) - 4,5 di phynyl imidazole.(IDPI), at pH = 7.0 and Triton X-114 was added as surfactant. The variables effecting like concentration of Triton ...
Background and Objectives: Pectin is a complex mixture of polysaccharides that is widely used in the food industry as a gelling agent, stabilizer and emulsifier. The aim of this study was to investigate the efficiency and physicochemical properties of extracted pectin from quince fruit using ultrasound. Materials & Methods: Pectin was extracted by ultrasound under the power of 320 W, two typ...
The initial distribution of gas and liquid is one the key factors that determine operation efficiency packed towers. development a distributor for ultra-large air blow-out bromine extraction plant can improve efficiency, save energy reduce consumption. In order to develop plant, guidelines evaluating distributors are clarified in this paper, six kinds commonly compared detail. Considering inhom...
In this research, a rapid, reliable and selective dispersive liquid-liquid microextraction (DLLME) followed by direct injection of microdroplet to graphite furnace atomic absorption spectrometry (GF-AAS) method for the determination of ultra-trace amounts of Ag(I) was developed. Effect of the important experimental parameters on the extraction efficiency of Ag(I) was investigated using response...
Introduction: Extracellular vesicles (EVs) are bacterial products with diverse biological roles. Like many microorganisms, Mycobacterium kansasii as a nontuberculous mycobacteria (NTM), can naturally release EVs. The aim of the present study was the extraction and biological evaluation of M. kansasii as a vaccine candidate against mycobacterial pulmonary infections. Methods: After bacterial cul...
A simple, rapid, and ultra sensitive dispersive solid phase extraction based on nano graphene oxide was developed for simultaneous measurement of trace amounts of metformin (MET) and linagliptin (LIN) in plasma samples by HPLC-UV-Vis. Affecting factors on the extraction of these drugs, including adsorbent weight, extraction time, organic solvent type, desorption situations, and composition of s...
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