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Homogeneity and stability study of the candidate reference material Adamussium colbecki for trace elements
S Ciardullo1, A Held, M D'Amato
1Istituto Superiore di Sanità, Viale Regina Elena 299, 00161, Rome, Italy.
Journal of Environmental Monitoring : JEM
|November 25, 2005
Summary
A new certified reference material (CRM) from Antarctic bivalve Adamussium colbecki was prepared for trace element analysis. This material demonstrates suitable homogeneity and stability for future certification of elements like arsenic and cadmium.
Area of Science:
- Environmental Science
- Analytical Chemistry
- Marine Biology
Background:
- Certified Reference Materials (CRMs) are crucial for accurate trace element analysis in environmental monitoring.
- The Antarctic bivalve Adamussium colbecki is a relevant matrix for studying bioaccumulation of trace elements in polar marine ecosystems.
Purpose of the Study:
- To prepare and evaluate a candidate CRM for trace elements in Adamussium colbecki.
- To assess the homogeneity and short-term stability of the candidate CRM.
Main Methods:
- Sample collection of Adamussium colbecki from Terra Nova Bay, Antarctica.
- Microwave-assisted acid digestion for sample preparation.
- Inductively Coupled Plasma Atomic Emission Spectrometry (ICP-AES) and Inductively Coupled Plasma Dynamic Reaction Cell Quadrupole Mass Spectrometry (ICP-DRC-Q-MS) for elemental analysis.
Main Results:
- The candidate CRM (IRMM 813) was prepared using Adamussium colbecki.
- Homogeneity and short-term stability tests were successfully conducted.
- The material was deemed fit for purpose, enabling further certification steps.
Conclusions:
- The prepared Adamussium colbecki material is suitable for development as a CRM for trace elements.
- The successful homogeneity and stability assessments pave the way for a comprehensive certification campaign involving expert laboratories.
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