Journal of Ravishankar University-B, 30 (I &II), 32-40 (2017)

Simultaneous Determination of Cationic and Anionic Surfactants in Domestic, Sewage and River Effluent by Diffuse Reflectance -Fourier Transform Infrared Spectroscop ic Analysis

Ramsingh Kurrey , Kaushlya Thakur , Swati Chandrawanshi and Manas Kanti Deb

School of Studies in Chemistry,

Pt. Ravishankar Shukla University, Raipur-492010, Chhattisgarh, India

Corresponding author: debmanas@yahoo.com

[Received 25 November 2017; revised version 06 February 2018; accepted 07 February 2018]

Abstract:  A new, simple, rapid and precise novel hyphenated diffuse reflectance-Fourier transform infrared spectroscopy (DRS-FTIR) technique for the simultaneous determination of the most frequently used cationic surfactants (CS+) i.e. cetyltrimethylammonium bromide (CTAB) and anionic surfactant (AS-) i.e. sodium dodecyl sulphate (SDS) in domestic, sewage and river wastewater samples has been stabilised. CS+ and AS- were analyzed using DRS-FTIR, the most steady and strongest vibrational IR peak at 2917.13 cm-1 for CTAB and 1226.07 for SDS were selected for the simultaneous quantiflcation of CS+ and AS- under the optimized condition such as effect of samples volume and effect of temperature. The limit of detection (LOD) and limit of quantiflcation (LOQ) of the present method were 5 µg/mL and 15 µg/mL, respectively. The absorbance and peak area were determined by the DRS-FTIR method, which shows excellent linearity with a correlation coefflcient value of 0.985 and 0.981 for the concentration range of 10-100 µg/mL. The standard deviation (SD) and relative standard deviation (RSD) for six replicate measurements were found to be 0.052 µg/L and 2.8 %, respectively.

Keywords: cationic surfactants, anionic surfactants, diffuse reflectance-Fourier transform infrared spectroscopy, wastewater samples.

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