Development and validation of an analytical procedure for quantitation of surfactants in dishwashing detergents using ultra-performance liquid chromatography-mass spectrometry.

The detection of surfactants in dishwashing detergents is challenging because the detergents tend to create a lot of foam. The aim of this study was therefore to develop a simple and robust procedure for simultaneous identification and quantification of multiple surfactants in dishwashingdetergents using standard addition method and ultra-performance liquid chromatography-mass spectrometry (UPLC-MS). The results contain the method validation for 11 surfactants (linear alkylbenzene sulfonates, PPG-9-ethylhexeth-5, sodium lauryl polyoxyethylene ether sulfate, alkyl polyglucoside, sodium C14-16 olefin sulfonate, cocamide diethanolamine, cocamide monoethanolamine, lauryldimethylamine oxide, cocamidopropyl betaine, nonylphenol, and nonylphenol ethoxylate).