Contactless conductometric determination of methanol and ethanol in samples containing water after their electrophoretic desalination

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F15%3A10318712" target="_blank" >RIV/00216208:11310/15:10318712 - isvavai.cz</a>

Alternative codes found

RIV/00216208:11120/15:43909809

Result on the web

<a href="http://dx.doi.org/10.1002/elps.201500174" target="_blank" >http://dx.doi.org/10.1002/elps.201500174</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1002/elps.201500174" target="_blank" >10.1002/elps.201500174</a>

Result language

angličtina

Original language name

Contactless conductometric determination of methanol and ethanol in samples containing water after their electrophoretic desalination

Original language description

Determination of the contents of methanol and ethanol in aqueous solutions was performed by measuring the permittivity of solutions using a contactless conductivity detector ((CD)-D-4) normally used for detection in capillary electrophoresis. The detection cell is a section of a fused silica capillary with an internal diameter of 50 m with a pair of conductivity electrodes on the external walls. The (CD)-D-4 response to samples of methanol/water and ethanol/water mixtures is linear in the concentrationinterval of approx. 40-100% v/v alcohol content. In the analysis of technical samples of methanol and ethanol, the determination is disturbed by the presence of even trace amounts of salts. This interference can be effectively eliminated by integrated electrophoretic desalination of the sample by the application of a direct current electric voltage with a magnitude of 10 kV to the capillary with the injected sample zone. Under these conditions, the ions migrate out of the sample zone and

Czech name

—

Czech description

—

Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

CB - Analytical chemistry, separation

OECD FORD branch

—

Project

<a href="/en/project/GA15-03139S" target="_blank" >GA15-03139S: New Electrophoretic Approaches in Studies of Obesity and Diabetes</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2015

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Electrophoresis

ISSN

0173-0835

e-ISSN

—

Volume of the periodical

36

Issue of the periodical within the volume

16

Country of publishing house

DE - GERMANY

Number of pages

6

Pages from-to

1976-1981

UT code for WoS article

000360055300025

EID of the result in the Scopus database

2-s2.0-84939451346