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IJCT Vol.12(2) [March 2005] >


Title: Spectrophotometric determination of anionic surfactants in wastewater using acridine orange
Authors: Adak, Asok
Pal, Anjali
Bandyopadhyay, Manas
Keywords: Anionic surfactant
sodium dodecyl sulphate
cationic dye
acridine orange
spectrophotometry
Issue Date: Mar-2005
Publisher: CSIR
IPC CodeG01J 3/00; C11D 1/02
Abstract: A simple and rapid spectrophotometric method for the determination of sodium dodecyl sulphate (SDS), an anionic surfactant (AS) is developed. SDS forms a yellow coloured complex with acridine orange (ACO), a cationic dye. The complex is extracted in toluene. The absorbance of the complex in toluene layer is measured at maximum wavelength (λmax) of 467 nm. The calibration curve is linear in the range of 0 – 6.0 ppm of SDS concentration. The method is compared with the standard MBAS method in terms of time, ease and accuracy. It is noticed that the present method is much easier and less time consuming. The method requires chemicals, which are less toxic than those required for the standard method. The method is applicable to wastewater analysis.
Page(s): 145-148
ISSN: 0975-0991 (Online); 0971-457X (Print)
Source:IJCT Vol.12(2) [March 2005]

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