Study of the film formation process in liquid-liquid extraction flow injection analysis

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Title:Study of the film formation process in liquid-liquid extraction flow injection analysis
Creators:
Kubáň, Vlastimil
Journal or Publication Title:
Collection of Czechoslovak Chemical Communications, 56, 6, pp. 1228-1237

Abstract

The behaviour of a thin film of an organic solvent on the walls of the extraction coil in a continuous liquid-liquid extraction flow system was studied using a computer-controlled fast-recording on-tube photometric detection system (approx. 3 ms time resolution). A single-loop injector was employed to introduce precise, reproducible volumes (<i>S</i><sub>r</sub> < 2%) of one phase into the continuous stream of the other as a segmented volume standard. The film thickness <i>D</i><sub>f</sub>, ranging from 1 to 20 μm for a 0.7 mm teflon tube, was calculated from the segment lengthening at a different chloroform flow rates and was found to obey a polynominal dependence on the linear flow rate, <i>d</i><sub>f</sub> = <i>f</i>(<i>u</i><sup>α</sup>), where α < 1.

Title:Study of the film formation process in liquid-liquid extraction flow injection analysis
Creators:
Kubáň, Vlastimil
Divisions:Life and Chemical Sciences > Institute of Organic Chemistry and Biochemistry > Collection of Czechoslovak Chemical Communications
Journal or Publication Title:Collection of Czechoslovak Chemical Communications
Volume:56
Number:6
Page Range:pp. 1228-1237
ISSN:0010-0765
E-ISSN:1212-6950
Publisher:Institute of Organic Chemistry and Biochemistry
Related URLs:
URLURL Type
http://dx.doi.org/10.1135/cccc19911228UNSPECIFIED
ID Code:5043
Item Type:Article
Deposited On:22 Feb 2010 11:29
Last Modified:22 Feb 2010 10:29

Citation

Kubáň, Vlastimil (1991) Study of the film formation process in liquid-liquid extraction flow injection analysis. Collection of Czechoslovak Chemical Communications, 56 (6). pp. 1228-1237. ISSN 0010-0765

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