Ka. Evans et al., QUANTITATIVE-DETERMINATION OF LINEAR PRIMARY ALCOHOL ETHOXYLATE SURFACTANTS IN ENVIRONMENTAL-SAMPLES BY THERMOSPRAY LC MS/, Analytical chemistry, 66(5), 1994, pp. 699-705
A new thermospray liquid chromatography/mass spectrometry (LC/MS) meth
od for quantitative determination of trace levels of alcohol ethoxylat
es (AE) in dilute aqueous environmental samples has been developed. Th
is method has been validated for use in aquatic safety assessments to
determine concentrations of total AE and individual AE species. This v
alidation was accomplished by determination of recoveries of spiked AE
samples from waste treatment plant effluents and receiving waters. Th
e method distinguishes highly branched propylene-based AE from isomeri
c linear ethylene-based AE.