title: The behaviour of226Ra in high-volume environmental water samples on TK100 resin.
abstract: Accurate, low-level measurement of226Ra in high volume water samples requires rapid pre-concentration and robust separation techniques prior to measurement in order to comply with discharge limits and drinking water regulations. This study characterises the behaviour of226Ra and interfering elements on recently developed TK100 (Triskem International) extraction chromatography resin. Distribution coefficients over a range of acid concentrations are given, along with an optimised procedure that shows rapid pre-concentration and separation of226Ra on TK100 resin is achievable for high volume (1 L) water samples without the need for sample pre-treatment.
authors.affiliation: National Physical Laboratory, Hampton Road, Teddington, Middlesex TW11 UK.|Chemistry Department, University of Surrey, Guildford, Surrey GU2 7XH UK.
authors.forename: E M
authors.initials: EM
authors.lastname: van Es
authors.affiliation: National Physical Laboratory, Hampton Road, Teddington, Middlesex TW11 UK.
authors.forename: B C
authors.initials: BC
authors.lastname: Russell
authors.affiliation: National Physical Laboratory, Hampton Road, Teddington, Middlesex TW11 UK.
authors.forename: P
authors.initials: P
authors.lastname: Ivanov
authors.affiliation: National Physical Laboratory, Hampton Road, Teddington, Middlesex TW11 UK.
authors.forename: M
authors.initials: M
authors.lastname: García Miranda
authors.affiliation: National Physical Laboratory, Hampton Road, Teddington, Middlesex TW11 UK.|Chemistry Department, University of Surrey, Guildford, Surrey GU2 7XH UK.
authors.forename: D
authors.initials: D
authors.lastname: Read
authors.affiliation: Triskem International, 3 rue des champs Géons, ZAC de l'Eperon, 35170 Bruz, France.
authors.forename: C
authors.initials: C
authors.lastname: Dirks
authors.affiliation: Triskem International, 3 rue des champs Géons, ZAC de l'Eperon, 35170 Bruz, France.
authors.forename: S
authors.initials: S
authors.lastname: Happel
keywords: 226Ra; Extraction chromatography; High volume water samples; TK100 resin