title: Preparation of a reference mussel tissue material for polycyclic aromatic hydrocarbons and trace metals determination.
abstract: Due to high cost of certified reference materials (CRMs), reference materials (RMs) are preferred to check the method performance in environmental analysis. In this work, a laboratory reference material (LRM) was prepared and characterised to carry out the quality control in monitoring analysis of eight polycyclic aromatic hydrocarbons (PAHs) and nine trace metals in mussel tissue. Mussels were collected in a naturally polluted area. Before the reference material was bottled, the mussel tissue was stabilised by freeze-drying, ground and sieved. For the material characterisation, several statistical tests were applied to check the homogeneity of the analytes in the tissue, and a stability test was performed to study the effect of the storage temperature in the analyte concentration. Other characteristics such as specific density, moisture and lipid contents as well as particle size distribution of the material were determined. Although the LRM had a homogeneous distribution for all PAHs and almost all metals, the stability study showed different results at both storage temperatures studied. For both PAHs and trace metals, the material was suitable to assure the quality control of the analysis.
authors: Department of Analytical Chemistry, Science and Technology Faculty, University of the Basque Country, P.O. Box 644, 48080 Bilbao, Spain. patricia.navarro@ehu.es
authors: Patricia
authors: P
authors: Navarro
authors: Luis
authors: L
authors: Bartolomé
authors: Juan Carlos
authors: JC
authors: Raposo
authors: Olatz
authors: O
authors: Zuloaga
authors: Gorka
authors: G
authors: Arana
authors: Nestor
authors: N
authors: Etxebarria
mesh_terms: D000818:Animals; D049872:Bivalvia / Q000737:chemistry*; D005612:Freeze Drying; D011084:Polycyclic Aromatic Hydrocarbons / Q000032:analysis* / Q000592:standards; D011786:Quality Control; D012015:Reference Standards; D014131:Trace Elements / Q000032:analysis* / Q000592:standards
chemical_list: D011084:Polycyclic Aromatic Hydrocarbons; D014131:Trace Elements