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Citation: Chen Jing-Yuan, Wang Guo-Ting, Liu Jin-Zhu. Investigation on the Determination of Micellar Aggregation Number by Steady-state Fluorescence Quenching Method[J]. Acta Physico-Chimica Sinica, ;1993, 9(04): 461-465. doi: 10.3866/PKU.WHXB19930408 shu

Investigation on the Determination of Micellar Aggregation Number by Steady-state Fluorescence Quenching Method

1.
Institute of Colloid and Interface Chemistry, Shandong University, Jinan 250100

Received Date: 1 February 1992
Available Online: 15 August 1993

The micellar aggregation numbers of sodium dodecyl sulfate(SDS), sodium dodecyl sulfonate(AS) and cetyltrimethylammonium bromide(CTAB) has been determined from steady-state fluorescence quenching method, using pyrene(PYR) as probe and diphenyketone(DPK) as quencher. The range of validity of the method used in this work for the determination of micelle aggregation number is discused. The results obtained show that this probe-quencher system applies to the determination of micelle concentrations and aggregation number of anionic and cationic micelles.
- Fluorescence spectra; Surfactant; Micellar aggregation number
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