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© Research
Publication : Analytical and bioanalytical chemistry

Long-term stability and temporal trends of organic contaminants in four collections of mussel tissue frozen standard reference materials

Scientific Fields
Diseases
Organisms
Applications
Technique

Published in Analytical and bioanalytical chemistry - 25 Feb 2015

Schantz MM, Pugh RS, Pol SS, Wise SA

Link to Pubmed [PMID] – 25711987

Anal Bioanal Chem 2015 Apr;407(11):3253-8

The stability of polycyclic aromatic hydrocarbons (PAHs), polychlorinated biphenyls (PCBs), and chlorinated pesticides in frozen mussel tissue Standard Reference Materials (SRMs) stored at -80 °C was assessed by analyzing samples of SRM 1974, SRM 1974a, and SRM 1974b Organics in Mussel Tissue (Mytilus edulis) periodically over 25 y, 20 y, and 12 y, respectively. The most recent analyses were performed during the certification of the fourth release of this material, SRM 1974c. Results indicate the concentrations of these persistent organic pollutants have not changed during storage at -80 °C. In addition, brominated diphenyl ethers (BDEs) were quantified in each of the materials during this study. The stability information is important for on-going monitoring studies collecting large quantities of samples for future analyses (i.e., formally established specimen banking programs). Since all four mussel tissue SRMs were prepared from mussels collected at the same site in Dorchester Bay, MA, USA, the results provide a temporal trend study for these contaminants over a 17 year period (1987 to 2004).

https://www.ncbi.nlm.nih.gov/pubmed/25711987