نتایج جستجو برای: assisted microextraction

تعداد نتایج: 133498  

Journal: :The Analyst 2014
Gang-Tian Zhu Xiao-Mei He Bao-Dong Cai Han Wang Jun Ding Bi-Feng Yuan Yu-Qi Feng

A novel in-syringe dispersive solid phase extraction (dSPE) system using electrospun silica fibers as adsorbents has been developed in the current work. A few milligrams of electrospun silica fibers were incubated in sample solution in the barrel of a syringe for microextraction assisted by vortex. Due to the benefit of dispersion and the high mass transfer rate of the sub-microscale electrospu...

Journal: :Molecules 2010
Igor Jerković Zvonimir Marijanović

Two samples of oak honeydew honey were investigated. Headspace solid-phase microextraction (HS-SPME) combined with GC and GC/MS enabled identification of the most volatile organic headspace compounds being dominated by terpenes(mainly cis- and trans-linalool oxides). The volatile and less-volatile organic composition of the samples was obtained by ultrasonic assisted extraction (USE) with two s...

Journal: :Talanta 2015
Elena Fernández Lorena Vidal Daniel Martín-Yerga María del Carmen Blanco Antonio Canals Agustín Costa-García

A novel approach is presented, whereby gold nanostructured screen-printed carbon electrodes (SPCnAuEs) are combined with in-situ ionic liquid formation dispersive liquid-liquid microextraction (in-situ IL-DLLME) and microvolume back-extraction for the determination of mercury in water samples. In-situ IL-DLLME is based on a simple metathesis reaction between a water-miscible IL and a salt to fo...

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