A novel time lag method for the analysis of mixed gas diffusion in polymeric membranes by on-line mass spectrometry: Method development and validation
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22340%2F18%3A43915800" target="_blank" >RIV/60461373:22340/18:43915800 - isvavai.cz</a>
Alternative codes found
RIV/67985858:_____/18:00493318
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S0376738818304022" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0376738818304022</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.memsci.2018.04.029" target="_blank" >10.1016/j.memsci.2018.04.029</a>
Alternative languages
Result language
angličtina
Original language name
A novel time lag method for the analysis of mixed gas diffusion in polymeric membranes by on-line mass spectrometry: Method development and validation
Original language description
A novel method to determine the individual diffusion coefficients of gases in a mixture during their permeation through polymeric membranes is described. The method was developed in two independent laboratories, using rubbery Pebax (R) and glassy Hyflon (R) AD60X membrane samples as standards, and validated using the Troger's base containing Polymer of Intrinsic Microporosity, PIM-EA-TB. Monitoring of the permeate composition in real time by a quadrupole mass spectrometer allowed the analysis of the permeation transient for gas mixtures. Two operation modes, either with a vacuum in the permeate and a direct connection to the mass spectrometer via a heated restriction, or using a sweeping gas and a heated capillary sample inlet, give excellent agreement with the traditional time lag method for single gases. A complete overview of the method development, identification of the critical parameters, instruments calibration, data elaboration and estimation of the experimental accuracy are provided. Validation with PIM-EA-TB, shows that the method can also successfully detect anomalous phenomena, related to pressure and concentration dependency of the transport properties, physical aging or penetrant-induced dilation. Rapid online analysis of the permeate composition makes the method also very suitable for routine mixed gas permeability measurements.
Czech name
—
Czech description
—
Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10404 - Polymer science
Result continuities
Project
—
Continuities
V - Vyzkumna aktivita podporovana z jinych verejnych zdroju
Others
Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of Membrane Science
ISSN
0376-7388
e-ISSN
—
Volume of the periodical
561
Issue of the periodical within the volume
1
Country of publishing house
US - UNITED STATES
Number of pages
20
Pages from-to
39-58
UT code for WoS article
000434713700005
EID of the result in the Scopus database
2-s2.0-85047365249