97 research outputs found
Experimental and Numerical Analysis of High-Resolution Injection Technique for Capillary Electrophoresis Microchip
This study presents an experimental and numerical investigation on the use of high-resolution injection techniques to deliver sample plugs within a capillary electrophoresis (CE) microchip. The CE microfluidic device was integrated into a U-shaped injection system and an expansion chamber located at the inlet of the separation channel, which can miniize the sample leakage effect and deliver a high-quality sample plug into the separation channel so that the detection performance of the device is enhanced. The proposed 45° U-shaped injection system was investigated using a sample of Rhodamine B dye. Meanwhile, the analysis of the current CE microfluidic chip was studied by considering the separation of Hae III digested ϕx-174 DNA samples. The experimental and numerical results indicate that the included 45° U-shaped injector completely eliminates the sample leakage and an expansion separation channel with an expansion ratio of 2.5 delivers a sample plug with a perfect detection shape and highest concentration intensity, hence enabling an optimal injection and separation performance
ChemInform Abstract: Normal Phase Liquid Chromatographic Separation and Structure Determination of Palladium-2,2,7-trimethyloctane-3,5-dionate.
Flüssiges und überkritisches CO2 als Eluent bei der Chromatographie von Metallchelaten
Application of HPLC to inorganic analysis Part VII: Comparison between pre-column- and on-column derivatization for separation of different metal oxinates; quantitative determination of Mn(II) besides Mn(III) ions
Extractability of As-Chelates and Solubility of different Rh, Pd-Chelates in Supercritical Fluid CO 2
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