Studies of Analysis for Ingredients in Household Detergents. VI.

Separation and Determination of α-Olefin Sulfonate and Linear Alkylbenzene Sulfonate Mixture

Abstract

Separation and determination of detergent grade AOS and LAS mixture were studied by NMR, TLC, and GLC. After conversion to methyl esters, the molar ratios of AOS and LAS were determined by NMR. The mixtures of these methyl esters were then separated and prepared by TLC. Isolated LAS was converted to thiol derivative and analyzed by GLC with an OV-101 glass capillary column. AOS was converted to TMS derivative and also analyzed by GLC with a 2% OV-17 0.5 m column. Gas chromatographic results of the derivatives agreed well with those of the raw materials.