Abstract
AbstractHigh Temperature Capillary GC and Capillary SFC have been applied to the analysis of non‐ionic lubricants, i.e. alkylphenol polyethoxylates (APnEO), ethoxylated alcohols (nEOAIc), polyethylene glycols (PEG), and ethoxylated triethanolamines (nEOEA); to the analysis of anionic lubricants, i.e. alkylbenzene‐sulfonates (ABS), alkylsulfonates (AS), and ethoxylated phosphoric acids (nEOPhA); and to the analysis of cationic lubricants, i.e. quaternary ammonium salts (Quats). Both techniques are compared in terms of resolution and analysis time. The importance of derivatization in HT‐CGC and CSFC is illustrated.
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