Preparation of a reference mussel tissue material for polycyclic aromatic hydrocarbons and trace metals determination.
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.
Navarro
Patricia
P
Department of Analytical Chemistry, Science and Technology Faculty, University of the Basque Country, P.O. Box 644, 48080 Bilbao, Spain. patricia.navarro@ehu.es
Bartolomé
Luis
L
Raposo
Juan Carlos
JC
Zuloaga
Olatz
O
Arana
Gorka
G
Etxebarria
Nestor
N
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
D011084:Polycyclic Aromatic Hydrocarbons; D014131:Trace Elements