DOI: 10.1039/A700507E
(Paper)
Reference Section for: Anal. Commun., 1997, 34, 97-99
Determination of Surfactant Adsorbed on a Quartz Surface by an Electrode-separated Piezoelectric Sensor
(Note: The full text of this document is currently only available in the PDF Version )
Shen Dazhong, Kang Qi, Zhang Xiaoli, Wang Lizeng and Ma Chengsong
Abstract
An in situ method to determinate the adsorption density of cetylpyridinium bromide on a quartz surface is proposed by use of an electrode-separated piezoelectric sensor. The correlation between the frequency shift and the mass load on the quartz surface was investigated. The influence of liquid properties on the determination of adsorption density is discussed. The dependence of the adsorption density and adsorption rate on pH and ionic strength are reported.
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