Hill SS, Dryfe RAW, Roberts EPL, Fisher AC, Yunus K. Hydrodynamic study of ion transfer at the liquid/liquid interface: the channel flow cell.
Anal Chem 2003;
75:486-93. [PMID:
12585474 DOI:
10.1021/ac0259459]
[Citation(s) in RCA: 24] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A hydrodynamic system based on the channel flow cell for voltammetric detection of ions at the liquid/liquid interface is reported. The current response for tetraethylammonium ion transfer across a membrane-supported liquid/liquid interface is shown to be consistent with existing theory for both the flow rate and voltage scan rate dependence of such processes, with no calibration factors or other adjustable parameters required. The analytical utility of such a device is discussed with specific regard to in situ measurements in flow systems.
Collapse