An air-assisted flow-gating interface for capillary electrophoresis

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11120%2F19%3A43917361" target="_blank" >RIV/00216208:11120/19:43917361 - isvavai.cz</a>
Alternative codes found
RIV/00216208:11310/19:10385492
Result on the web
<a href="https://doi.org/10.1002/elps.201800421" target="_blank" >https://doi.org/10.1002/elps.201800421</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1002/elps.201800421" target="_blank" >10.1002/elps.201800421</a>

Result language
angličtina
Original language name
An air-assisted flow-gating interface for capillary electrophoresis
Original language description
A new kind of flow gating interface (FGI) has been designed for on-line connection of CE with flow-through analytical techniques. The sample is injected into the separation capillary from a space from which the BGE was forced out by compressed air. A drop of sample solution with a volume of 75 nL is formed between the outlet of the delivery capillary supplying the solution from the flow-through apparatus and the entrance to the CE capillary; the sample is hydrodynamically injected into the CE capillary from this drop. The sample is not mixed with the surrounding BGE solution during injection. The functioning of the proposed FGI is fully automated and the individual steps of the injection process are controlled by a computer. The injection sequence lasts several seconds and thus permits performance of rapid sequential analyses of the collected sample. FGI was tested for the separation of equimolar 50 μM mixture of the inorganic cations K + , Ba 2+ , Na + , Mg 2+ and Li + in 50 mM acetic acid/20 mM Tris (pH 4.5) as BGE. The obtained RSD values for the migration times varied in the range 0.7-1.0% and the values for the peak area were 0.7-1.4%; RSD were determined for 10 repeated measurements.
Czech name
—
Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10406 - Analytical chemistry

Project
<a href="/en/project/GA18-04902S" target="_blank" >GA18-04902S: Instrumentation for continuous on-line electtrophoretic monitoring of metabolic processes in living organisms</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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