Back to Search Start Over

Cetyltrimethylammonium assay using fluorescence probe berberine and a competitive host–guest complexation with butylated β-cyclodextrin

Authors :
Hai-Feng Yang
Zhi-Min Liu
Yu Yang
Guo-Li Shen
Yan-Li Liu
Ru-Qin Yu
Source :
Sensors and Actuators B: Chemical. 106:632-640
Publication Year :
2005
Publisher :
Elsevier BV, 2005.

Abstract

An optical sensor for cetyltrimethylammonium chloride (CTAC), based on the fluorescence quenching of berberine/butylated β-cyclodextrin (HDB-β-CD) complex immobilized in plasticized poly(vinyl chloride) (PVC) membrane has been developed, in which berberine served as a sensitive fluorescence indicator probe. The decrease of fluorescence intensity of berberine/HDB-β-CD complex upon the addition of CTAC was attributed to the formation of an inclusion complex between HDB-β-CD and CTAC, which has been utilized as the basis of the fabrication of a CTAC-sensitive fluorescence sensor. The response mechanism of sensor has been discussed in detail. The analytical performance characteristics of the proposed CTAC-sensitive sensor were investigated. The sensor can be applied to the quantification of CTAC with a linear range covering from 7.0 × 10 −11 to 4.0 × 10 −9 mol L −1 with a detection limit of 3.0 × 10 −11 mol L −1 . The sensor exhibits excellent reproducibility, reversibility and selectivity. The recommended method was successfully used for the determination of CTAC in water samples.

Details

ISSN :
09254005
Volume :
106
Database :
OpenAIRE
Journal :
Sensors and Actuators B: Chemical
Accession number :
edsair.doi...........b028ac43b9f5d0a13a6fdcb7dbfb93ec
Full Text :
https://doi.org/10.1016/j.snb.2004.09.012