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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 28, Number 1
BKCSDE 28(1)
January 20, 2007

Title	Universal LC Method for a Determination of Fourteen Cationic Surfactants Widely Used in Surfactant Industry
Author	Ho Ryul Ryu, Hong Soon Park, Choong Kyun Rhee*
Keywords	Cationic surfactant, LC, ELSD
Abstract	This work presents a universal and simple LC method with evaporative light scattering detection (ELSD), for a determination of fourteen widely used cationic surfactants in industry (DDTM, DDBA, TDTM, TDBA, MTOA, THA, HDTM, ODTM, TOA, DLDM, DMDM, DPDM, IM and DSDM). The LC system employs a reverse phase LC method utilizing a single J’sphere ODS (250 × 4.6 mm, 4 μ m) column and a methanol-water containing 0.15% TFA eluent system. The ELSD responds to all the surfactants of interest; the linear working ranges in the log-log plots are 2-2800 μ g mL^-1 with precision less than 5%, and the detection limits are in the concentration range of 1.5-7.5 μ g mL^-1. The application of the analytical procedure to two household products without pretreatment indicates that the presented chromatographic method would be universal and simple in the analysis of cationic surfactants in commercial products.
Page	85 - 88
Full Text	PDF

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