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Effect of cefoperazone sodium on the physicochemical properties of surfactants
Author(s) -
Qian Junhong,
Gu Jinghua,
Xia Jiding
Publication year - 2005
Publication title -
journal of surfactants and detergents
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.349
H-Index - 48
eISSN - 1558-9293
pISSN - 1097-3958
DOI - 10.1007/s11743-005-0352-4
Subject(s) - chemistry , krafft temperature , cloud point , sodium dodecyl sulfate , critical micelle concentration , micelle , bromide , pulmonary surfactant , thermodynamics of micellization , sodium , nuclear chemistry , chromatography , inorganic chemistry , organic chemistry , aqueous solution , biochemistry
The effects of cefoperazone sodium (CS), a pharmaceutical compound, on the critical micelle concentration (CMC) of surfactants with different charges [cetyl trimethylammonium bromide (CTAB), sodium dodecyl sulfate (SDS), and Triton X‐100], the cloud point of Triton X‐100, and the Krafft temperatures of SDS and CTAB were studied. The interaction of CS with differently charged surfactants was determined by ultraviolet and fluorescence spectrophotometry. The results show that with increasing CS concentration, the Krafft temperature increases and the CMC decreases in the SDS/H 2 O system, whereas the opposite results are obtained in the CTAB/H 2 O system. Both the cloud point and the CMC of Triton X‐100 increase with the addition of CS. The above results are attributed to the different micellar interactions between CS and surfactants with different charges.