|SREL Reprint #0768|
Method for Detecting Trace-Element Contamination of Fish
Samples from Handling
A statistical method to detect handling (surface)
contamination of fish tissues and whole fish samples with trace elements is
presented. The method was applied
to whole body and axial muscle samples of bluegill that were acid digested and
analyzed for Cd, Cu, Mn, Pb, and Zn. Handling
contamination of whole fish samples was not evident for any of the five trace
elements, whereas handling contamination of muscle samples by Pb was indicated.
This contamination was not revealed by the combined analyses of a
reference standard (NBS bovine liver) and procedural blanks.
Lead contamination of muscle samples probably resulted from contact with
mucosal surface slime, which contains high concentrations of Pb relative to
SREL Reprint #0768
Wiener, J.G. 1982. Method for detecting trace element
contamination of fish samples from handling. Environmental
Science and Technology 16:90-93.