TITLE

Element fingerprinting of marine organisms by dynamic reaction cell inductively coupled plasma mass spectrometry

AUTHOR(S)
Cubadda, Francesco; Raggi, Andrea; Coni, Ettori
PUB. DATE
February 2006
SOURCE
Analytical & Bioanalytical Chemistry;Feb2006, Vol. 384 Issue 4, p887
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
A method for the determination of sixteen elements (Al, As, Cd, Co, Cr, Cu, Fe, Hg, Mn, Mo, Ni, Pb, Se, Sn, V, Zn) in seafood by dynamic reaction cell inductively coupled plasma mass spectrometry (ICP–DRC–MS) is presented. A preliminary study of polyatomic interferences was carried out in relation to the chemical composition of marine organisms belonging to different taxa. Acid effects and other matrix effects in marine organisms submitted to closed-vessel microwave digestion were investigated as well. Ammonia was the reactive gas used in the DRC to remove polyatomic ions interfering with 27Al, 52Cr, 56Fe and 51V. Optimal conditions for the simultaneous determination of analytes were identified in order to develop a fast multielement method. A suite of real samples (mussels and various fish species) were used during method development along with three certified reference materials: BCR CRM 278R (mussel tissue), BCR CRM 422 (cod muscle) and DORM-2 (dogfish muscle). The proposed analytical approach can be used in conjunction with suitable chemometric procedures to address quality and safety issues in aquaculture and fisheries. As an example, a case study is described in which mussels from three farming sites in the Venice Lagoon were distinguished by multivariate analysis of element fingerprints. [Figure not available: see fulltext.]
ACCESSION #
21909020

 

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