Rapid detection of toxic metals in non-crushed oyster shells by portable X-ray fluorescence spectrometry.
The aim of this study was the multi-elemental detection of toxic metals such as lead (Pb) in non-crushed oyster shells by using a portable X-ray fluorescence (XRF) spectrometer. A rapid, simultaneous multi-element analytical methodology for non-crushed oyster shells has been developed using a portable XRF which provides a quick, quantitative, non-destructive, and cost-effective mean for assessment of oyster shell contamination from Pb. Pb contamination in oyster shells was further confirmed by scanning electron microscopy with energy dispersive spectroscopy (SEM-EDS). The results indicated that Pb is distributed in-homogeneously in contaminated shells. Oyster shells have a lamellar structure that could contribute to the high accumulation of Pb on oyster shells.
Department of Chemistry and Physics, Southeastern Louisiana University, Hammond, LA 70402, USA. Ju.Chou@selu.edu
Ju
J
Chou
Garret
G
Clement
Bradley
B
Bursavich
Don
D
Elbers
Baobao
B
Cao
Weilie
W
Zhou
D000818:Animals; D004784:Environmental Monitoring / Q000379:methods*; D007854:Lead / Q000032:analysis* / Q000493:pharmacokinetics / Q000633:toxicity; D008145:Louisiana; D010125:Ostreidae / Q000737:chemistry* / Q000378:metabolism; D012758:Shellfish / Q000032:analysis*; D013052:Spectrometry, X-Ray Emission; D013997:Time Factors; D014018:Tissue Distribution
D007854:Lead