title: Development of a protocol to measure iron-55 in solid matrices in the environment.
abstract: The development of metrology of iron-55 in low-level radioactivity in environmental solid matrices was realised for conducting radioecological studies. A protocol was developed based on the adaptation of existing methods for the purification of iron-55 with selective chromatographic resin, which was then measured with liquid scintillation. The loss attached treatment chemical steps were quantified with elemental iron by Inductively Coupled Plasma Atomic Emission Spectrometry (ICP-AES). The tests were used to define the iron retention capacity of selective chromatographic resin, a key element in chemical treatment, and test sample size needed to reach the detection limit of 30 Bq kg(-1) dry. The solid samples were analysed with the developed protocol. The activities obtained from iron-55 were below the detection limit of 30 Bq kg(-1) dry.
authors.affiliation: Institut de Radioprotection et de Sûreté Nucléaire (IRSN), PRP-ENV/STEME, Le Vésinet 78110, France. Electronic address: celine.augeray@irsn.fr.
authors.forename: Céline
authors.initials: C
authors.lastname: Augeray
authors.affiliation: Institut de Radioprotection et de Sûreté Nucléaire (IRSN), PRP-ENV/STEME, Le Vésinet 78110, France.
authors.forename: Mouton
authors.initials: M
authors.lastname: Magalie
authors.affiliation: Institut de Radioprotection et de Sûreté Nucléaire (IRSN), PRP-ENV/STEME, Le Vésinet 78110, France.
authors.forename: Broustet
authors.initials: B
authors.lastname: Nathalie
authors.affiliation: Institut de Radioprotection et de Sûreté Nucléaire (IRSN), PRP-ENV/STEME, Le Vésinet 78110, France.
authors.forename: Perdereau
authors.initials: P
authors.lastname: Marie-France
authors.affiliation: Institut de Radioprotection et de Sûreté Nucléaire (IRSN), PRP-ENV/STEME, Le Vésinet 78110, France.
authors.forename: Laconici
authors.initials: L
authors.lastname: Chloé
authors.affiliation: Institut de Radioprotection et de Sûreté Nucléaire (IRSN), PRP-ENV/STEME, Le Vésinet 78110, France.
authors.forename: Loyen
authors.initials: L
authors.lastname: Jeanne
authors.affiliation: Institut de Radioprotection et de Sûreté Nucléaire (IRSN), PRP-ENV/STEME, Le Vésinet 78110, France.
authors.forename: Fayolle
authors.initials: F
authors.lastname: Corinne
authors.affiliation: Institut de Radioprotection et de Sûreté Nucléaire (IRSN), PRP-ENV/STEME, Le Vésinet 78110, France.
authors.forename: Picolo
authors.initials: P
authors.lastname: Jean-Louis
mesh_terms: D007504:Iron Radioisotopes / Q000032:analysis*; D057230:Limit of Detection; D011834:Radiation Monitoring / Q000379:methods*; D012588:Scintillation Counting / Q000379:methods*; D013054:Spectrophotometry, Atomic / Q000379:methods*
chemical_list: D007504:Iron Radioisotopes
keywords: Environment; Iron-55; Liquid scintillation; Solid matrices