title: Characterisation of ethoxylated fatty chains of anionic surfactants and determination of residual ethoxylated fatty alcohols.
abstract: Bachus et al. [1] recently described a new derivatisation method using 2-furoyl chloride for the characterisation of mixtures of polyethoxylated alcohols and their corresponding sulfates. This paper deals with the control of the derivatisation steps; hydrolysis and extraction conditions were optimised. The method is extended to the characterisation of alkyl sulfosuccinates, alkyl sulfoacetates and alkyl phosphates and to the analysis of residual polyethoxylated alcohols in surfactants. Extraction of non-ionic compounds using solid-phase extraction cartridges was performed before derivatisation. Residual amounts of alcohol were determined in five commercial anionic surfactants. Moreover, direct derivatisation without preliminary SPE in the same anionic surfactants proved to be efficient for dry samples.
authors.affiliation: Laboratoire Synthèse et Chromatographie, UPRES EA 3233, Sciences et Méthodes Séparatives, Université de Rouen, Rue Tesnières, 76821, Mont Saint Aignan Cedex, France.
authors.forename: Julien
authors.initials: J
authors.lastname: Morvan
authors.forename: Magali
authors.initials: M
authors.lastname: Saluden
authors.forename: Valérie
authors.initials: V
authors.lastname: Agasse
authors.forename: Florence
authors.initials: F
authors.lastname: Barbot
authors.forename: Pascal
authors.initials: P
authors.lastname: Cardinael
authors.forename: Jean-Philippe
authors.initials: JP
authors.lastname: Bouillon
authors.forename: Gautier
authors.initials: G
authors.lastname: Decock
mesh_terms: D017738:Alkanesulfonic Acids / Q000032:analysis / Q000737:chemistry; D002853:Chromatography, Liquid; D005233:Fatty Alcohols / Q000032:analysis* / Q000737:chemistry; D006868:Hydrolysis; D009943:Organophosphorus Compounds / Q000032:analysis / Q000737:chemistry; D013463:Sulfuric Acid Esters / Q000032:analysis / Q000737:chemistry; D013501:Surface-Active Agents / Q000032:analysis* / Q000302:isolation & purification
chemical_list: D017738:Alkanesulfonic Acids; D005233:Fatty Alcohols; D009943:Organophosphorus Compounds; D013463:Sulfuric Acid Esters; D013501:Surface-Active Agents