A5014214915- Analytical Chemistry and Chromatography
- Microfluidic and Capillary Electrophoresis Applications
- Innovative Microfluidic and Catalytic Techniques Innovation
- Analytical Chemistry and Sensors
- Analytical chemistry methods development
- Electrochemical sensors and biosensors
- Mass Spectrometry Techniques and Applications
- Biosensors and Analytical Detection
- Electrochemical Analysis and Applications
- Advanced Chemical Sensor Technologies
- Protein purification and stability
- Mesoporous Materials and Catalysis
- Diamond and Carbon-based Materials Research
- Environmental Toxicology and Ecotoxicology
- Chemical Analysis and Environmental Impact
- Advanced biosensing and bioanalysis techniques
- Carbon Nanotubes in Composites
- Supercapacitor Materials and Fabrication
- Economic Development and Digital Transformation
- 3D Printing in Biomedical Research
- Chemical Synthesis and Characterization
- Microfluidic and Bio-sensing Technologies
- Pesticide and Herbicide Environmental Studies
- Economic Issues in Ukraine
- Calcium Carbonate Crystallization and Inhibition
Repligen (United States)
2024
Lomonosov Moscow State University
2004-2024
Russian University of Cooperation
2021
Dublin City University
2011-2020
22q11 Ireland
2014-2017
University of Tasmania
2012-2013
Coiled planar capillary chromatography columns (0.9 mm I.D. × 60 cm L) were 3D printed in stainless steel (316L), and titanium (Ti-6Al-4V) alloys (external dimensions of ~5 30 58 mm), either slurry packed with various sized reversed-phase octadecylsilica particles, or filled an situ prepared methacrylate based monolith. coupled directly Peltier thermoelectric direct contact heater/cooler modules. Preliminary results show the potential using such future portable chromatographic devices.
The regularities of the retention alkanoic and alkanesulfonic acids homologues were investigated for set 36 anion-exchange columns produced by various manufacturers. role hydrophobic electrostatic interactions in separation organic anions was studied. methylene selectivity increments α(CH2) measured studied with 10 mM sodium hydroxide eluent. influence matrix, surface area, polar group structure, ion-exchange capacity, density charged functional groups on other characteristics...
This review covers the latest developments and applications of porous layer open tubular columns in capillary liquid chromatography. Here, authors provide a concise background on fundamentals columns, their fabrication application. Over past two decades, growing interest areas proteomics hyphenated LC-MS techniques have played large part development structures within formats due to high permeability, excellent efficiency exceptional peak capacity. gives brief overview general, however, it...
For the first time, graphitized carbon particles with a high surface area have been prepared and evaluated as new material for probing direct electrochemistry of hemoglobin (Hb). Scanning electron microscopy (SEM) transmission (TEM) imaging revealed that monolithic skeleton was constructed by series mesopores irregular shapes an average pore diameter ~5.6 nm. With 239.6 m(2)/g, exhibited three major Raman peaks commonly observed nanotubes other materials, i.e., sp(3) sp(2) phases coexisted...
An automated column fabrication technique that is based on a ultraviolet (UV) light-emitting diode (LED) array oven, and provides precisely controlled "in-capillary" initiated polymerization at 365 nm, presented for the production of open tubular monolithic porous polymer layer capillary (monoPLOT) columns varying length, inner diameter (ID), thickness. The developed approach allows preparation because an delivery approach, with uniform thickness monolith morphology, from UV power exposure...
Cellulose-based filter papers were used as base materials to construct microfluidic paper-based analytical devices (μPADs) coupling a separation channel with electrochemical detection.
A method using zinc powder in conjunction with the common Griess assay was developed for detection of nitrate water.
Glycidyl methacrylate-ethylene dimethacrylate (GMA-co-EDMA) based monolithic porous layer open tubular (monoPLOT) columns (0.05 mm I.D., thickness ≈ 5 µm) have been fabricated using an automated column scanning technique, providing UV polymerisation at 365 nm. Columns were chemically modified to obtain desired diol groups on the surface, and longitudinal homogeneity of stationary phase was profiled capacitively coupled contactless conductivity detector (sC4D), before after such modification....
A new direct contact platform for capillary column precise temperature control based upon the use of individually controlled sequentially aligned Peltier thermoelectric units is presented. The provides rapid and microbore liquid chromatography columns allows simultaneous temporal spatial programming. operating range was between 15 200 °C each 10 units, with a ramp rate approximately 400 °C/min. system evaluated number nonstandard applications, such as application gradients both linear...
Abstract A range of porous carbon‐based monolithic (PCM) rods with flow‐through pore sizes 1, 2, 5 and 10 μm, were produced using a silica particle template method. The characterised SEM energy‐dispersive X‐ray spectroscopy, BET surface area structure analysis, dilatometry thermal gravimetry. evaluation the carbon structures revealed an interconnected rigid bimodal spectroscopy analysis verified quantitative removal embedded beads. specific areas μm 178, 154, 84 125 m 2 /g after pyrolysis...
A technique for the in-process measurement of polymer stationary phase growth inside fused silica capillaries during fabrication monolithic porous layer open tubular (monoPLOT) columns is presented. In this work, capacitively coupled contactless conductivity detection (C4D) was applied as an online tool within capillaries. The relationship between effective capillary diameter and C4D response investigated two polymers, butyl methacrylate–ethylene dimethacrylate (BuMA–EDMA)...