Simultaneous spectrophotometric determination of binary mixtures of surfactants using continuous wavelet transformation.
This work presents a simple, rapid, and novel method for simultaneous determination of binary mixtures of some surfactants using continuous wavelet transformation. The method is based on the difference in the effect of surfactants Cetyltrimethylammoniumbromide (CTAB), dodecyl trimethylammonium bromide (DTAB), cetylpyridinium bromide (CPB) and TritonX-100 (TX-100) on the absorption spectra of complex of Beryllium with Chrome Azurol S (CAS) at pH 5.4. Binary mixtures of CTAB-DTAB, DTAB-CPB and CTAB-TX-100 were analyzed without prior separation steps. Different mother wavelets from the family of continuous wavelet transforms were selected and applied under the optimal conditions for simultaneous determinations. The proposed methods, under the working conditions, were successfully applied to simultaneous determination of surfactants in hair conditioner and mouthwash samples.
Afkhami
Abbas
A
Faculty of Chemistry, Bu-Ali Sina University, Hamadan 65174, Iran. afkhami@basu.ac.ir
Nematollahi
Davood
D
Madrakian
Tayyebeh
T
Abbasi-Tarighat
Maryam
M
Hajihadi
Mitra
M
D001608:Beryllium / Q000737:chemistry; D000077286:Cetrimonium; D002593:Cetrimonium Compounds; D002594:Cetylpyridinium; D003358:Cosmetics / Q000737:chemistry; D062385:Hydroxybenzoates / Q000737:chemistry; D008722:Methods; D017830:Octoxynol; D000644:Quaternary Ammonium Compounds; D013053:Spectrophotometry / Q000379:methods*; D013501:Surface-Active Agents / Q000032:analysis*
D002593:Cetrimonium Compounds; D003358:Cosmetics; D062385:Hydroxybenzoates; D000644:Quaternary Ammonium Compounds; D013501:Surface-Active Agents; C013912:decyltrimethylammonium; C015076:chrome azurol S; D017830:Octoxynol; D002594:Cetylpyridinium; D001608:Beryllium; D000077286:Cetrimonium