IN-SITU MEASUREMENT OF LEAD(II) ION-BINDING TO AN ARACHIDIC ACID LANGMUIR MONOLAYER USING A QUARTZ-CRYSTAL MICROBALANCE

Authors
MATSUURA N ELLIOT DJ FURLONG DN GRIESER F
Citation
N. Matsuura et al., IN-SITU MEASUREMENT OF LEAD(II) ION-BINDING TO AN ARACHIDIC ACID LANGMUIR MONOLAYER USING A QUARTZ-CRYSTAL MICROBALANCE, Colloids and surfaces. A, Physicochemical and engineering aspects, 126(2-3), 1997, pp. 189-195
Citations number
34
Categorie Soggetti
Chemistry Physical
Journal title
Colloids and surfaces. A, Physicochemical and engineering aspects → ACNP
ISSN journal
09277757
Volume
126
Issue
2-3
Year of publication
1997
Pages
189 - 195
Database
ISI
SICI code
0927-7757(1997)126:2-3<189:IMOLIT>2.0.ZU;2-R
Abstract
A quartz crystal microbalance (QCM) was used to measure the in situ bi nding of lead (II) ions to a Langmuir monolayer of arachidic acid (ArH ) at the air-water interface. A horizontally oriented QCM was lowered onto an ArH monolayer and an aliquot of a Pb2+ solution was injected b eneath the monolayer. A decrease in the QCM frequency was observed, co nsistent with Pb2+ binding to the ArH monolayer. Models for a fatty ac id to divalent metal ion ratio (F:M) of 2 and 1 were considered. The e xperimental data was consistent with 2:1 binding. (C) 1997 Elsevier Sc ience B.V.