Critical micelle concentration of sodium dodecyl sulfate (SDS) was determined using condunctance and fluorescence method. Effect of low concentration of pyrene was checked on the Cmc of SDS conductometrically. The Cmc was determined from the data using two different methods. ORIGIN software shown up as a much better and easier way for the theoretical treatment of experimental data. It was observed that low concentration of pyrene has no effect on the Cmc of SDS.


SYED SAKHAWAT SHAH ,ASAD MUHAHAMMAD KHAN ,