Estimation of bioaccessibility of heavy metals in oysters using the physiologically based extraction test

Marisa Intawongse, Supatsa Sriraksa, John Dean, Pinpong Kongchana

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

A physiologically based extraction test (PBET) was applied to estimate the oral bioaccessibility of cadmium, mercury, and lead from oyster tissues. The PBET measures the fraction of a metal that is solubilized from the sample under simulated gastric and intestinal conditions. Both gastric and intestinal extracted solutions as well as microwave digested residue were analyzed by inductively coupled plasma-optical emission spectrometry (ICP-OES). The bio accessibilities (relative to the total metal concentrations) of cadmium and lead in the oyster samples were 33.8–59.2% and 28.3–51.4%, respectively. The bioaccessibility of mercury was non detectable (
Original languageEnglish
Pages (from-to)372-383
JournalInstrumentation Science & Technology
Volume40
Issue number4
DOIs
Publication statusPublished - 2012

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