title: NAA methodology for the certification of eight trace elements in a plankton reference material.
abstract: Neutron activation analysis (NAA) methodology was applied for the certification of eight trace elements (As, Co, Cr, Cu, Hg, Mn, Se, and Zn) in a plankton reference material (CRM 414) prepared by the BCR of the Commission of the European Communities. Average concentrations (micrograms/g dry wt) and standard deviations found in plankton for the eight trace elements were as follows: As 6.29 +/- 0.19, Co 1.37 +/- 0.05, Cr 23.7 +/- 0.56, Cu 27.1 +/- 0.88, Hg 0.29 +/- 0.02, Mn 285 +/- 4.1, Se 1.62 +/- 0.10, and Zn 114 +/- 3.4. All values found were to be in very good agreement (0.5%-8.1%) with certified values.
authors.affiliation: Radioanalytical Laboratory, NCRS Demokritos, Athens, Greece.
authors.forename: A P
authors.initials: AP
authors.lastname: Grimanis
authors.forename: M
authors.initials: M
authors.lastname: Vassilaki-Grimani
mesh_terms: D000818:Animals; D006115:Greece; D009501:Neutron Activation Analysis; D010933:Plankton / Q000737:chemistry*; D012015:Reference Standards; D013051:Spectrometry, Gamma; D014131:Trace Elements / Q000032:analysis*
chemical_list: D014131:Trace Elements