Results 21 to 30 of about 6,944 (194)
Micro and Nano Engineering, 2022 In this study, an application of novel polymer-based microfluidic channels for preconcentration and detection of methane gas is investigated. Poly (methyl methacrylate) (PMMA) microfluidic channel is filled by graphene oxide (GO) as a new adsorbent for ...
Mohammad Ramezannezhad +3 more
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Folding-paper-based preconcentrator for low dispersion of preconcentration plug [PDF]
Micro and Nano Systems Letters, 2017 Ion concentration polarization (ICP) has been widely studied for collecting target analytes as it is a powerful preconcentrator method employed for charged molecules. Although the method is quite robust, simple, cheap, and yields a high preconcentration factor, a major hurdle to be addressed is extracting the preconcentrated samples without dispersing ...
Lee, Kyungjae +6 more
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Spectrophotometric determination of trace iron(III) in natural water after its preconcentration with a chelating resin [PDF]
Journal of the Serbian Chemical Society, 2002 A method for the determination of Fe(III) at trace levels is described. Thus, prior to the spectrophotometric determination, a preconcentration of the trace amounts of iron(III) using a chelate forming resin is proposed.
ELEONORA-ANA NEAGU, ZENOVIA MOLDOVAN
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Life, 2023 This hypothesis demonstrates that the efficiency of loop-mediated isothermal amplification (LAMP) for nucleic acid detection can be positively influenced by the preconcentration of microbial cells onto hydrophobic paper surfaces.
Isha Uttam +6 more
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absolute preconcentration [PDF]
, 2014 Citation: 'absolute preconcentration' in the IUPAC Compendium of Chemical Terminology, 3rd ed.; International Union of Pure and Applied Chemistry; 2006. Online version 3.0.1, 2019. 10.1351/goldbook.A00027 • License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International for individual terms.
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Sensors, 2015 A fluidic microchip incorporating a convergent microchannel and a Nafion-nanoporous membrane is proposed for the preconcentration and separation of multi-species samples on a single platform. In the device, sample preconcentration is achieved by means of
Ping-Hsien Chiu +2 more
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Extraction and Preconcentration of Pd(II) by Dispersive Liquid Liquid Microextraction from different real samples and Determination by Spectrophotometry Uv-Vis [PDF]
شیمی کاربردی روز, 2017 This article presents new and sensitive method for the determination of trace amounts of Palladium (II) by dispersive liquid–liquid microextraction(DLLME) combined with UV–vis spectrophotometry. The method is based on the complex formation of Pd(II) with
raziyeh ashtary, shahla elhami
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Nanofluidic preconcentration and detection of nanoparticles [PDF]
Journal of Applied Physics, 2012 The fast detection and characterization of nanoparticles, such as viruses or environmental pollutants, are important in fields ranging from biosensing to quality control. However, most existing techniques have practical throughput limitations, which significantly limit their applicability to low analyte concentrations.
Anirban, Mitra +2 more
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Advanced Robotics Research, EarlyView.Fuel‐free Cu2O‐based micromotors functionalized with β‐cyclodextrin actively remove bisphenol A from water under visible light. The cyclodextrin shell captures BPA and enhances micromotor motility, leading to faster degradation and higher overall removal than nonfunctionalized Cu2O and Cu2O@Au.
Luisa Natalia Cordoba Urresti +3 more
wiley +1 more source
The Preconcentration and Determination of Pb2+, Cu2+, Co2+, Ni2+, Fe2+ and Zn2+ Elements in Water Samples Using Citrate Form of Anion-Exchange Resin [PDF]
Iranian Journal of Chemistry & Chemical Engineering, 1995 Lead, copper, cobalt, nickel, iron and zinc ions form monocitrate complexes (negative charge) in citrate solution which is absorbed on the citrate form of anion-exchange resins (citrate as counter ion) y exchange of citrate ion with citrate complexes ...
Mohammad Hossein Arbab Zavar +1 more
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