title: Determination of toxic heavy metals in Echinodermata and Chordata species from South Korea.
abstract: This study aimed at analysing concentrations of heavy metals including arsenic, lead, cadmium, aluminium and mercury in commonly consumed seafood species belonging to Echinodermata (Anthocidaris crassispina and Stichopus japonicus) and Chordata (Halocynthia roretzi and Styela plicata). The samples were digested by a microwave system and analysed for As, Cd and Pb by inductively coupled plasma mass spectrometer, for Al by inductively coupled plasma-optical emission spectrometer and Hg by Direct Mercury Analyser. The analytical method was validated by determining sensitivity, linearity, precision, spiking recoveries and analysis of the Standard Reference Material (SRM) NIST 1566-b, an Oyster Tissue. Results showed considerably higher accumulation of Al and As in analysed samples, compared to Pb and Cd, while Hg had the lowest contamination. On comparison, the obtained results with the recommended standards by the Food and Agriculture Organization, European Commission and Ministry of Food and Drug Safety of Korea, it was concluded that the analysed seafoods were safe and thus would not pose a threat to consumers.
authors.affiliation: a Department of Food and Nutrition , Chosun University , Gwangju , Republic of Korea.
authors.forename: Ji Yeon
authors.initials: JY
authors.lastname: Choi
authors.forename: Girum
authors.initials: G
authors.lastname: Habte
authors.forename: Naeem
authors.initials: N
authors.lastname: Khan
authors.forename: Eun Yeong
authors.initials: EY
authors.lastname: Nho
authors.forename: Joon Ho
authors.initials: JH
authors.lastname: Hong
authors.forename: Hoon
authors.initials: H
authors.lastname: Choi
authors.forename: Kyung Su
authors.initials: KS
authors.lastname: Park
authors.forename: Kyong Su
authors.initials: KS
authors.lastname: Kim
mesh_terms: D000535:Aluminum / Q000032:analysis; D000818:Animals; D047329:Anthocidaris / Q000737:chemistry; D001151:Arsenic / Q000032:analysis; D002104:Cadmium / Q000032:analysis; D043344:Chordata; D003257:Consumer Product Safety; D004447:Echinodermata; D005506:Food Contamination / Q000032:analysis*; D006801:Humans; D007854:Lead / Q000032:analysis; D019216:Metals, Heavy / Q000032:analysis*; D056910:Republic of Korea; D017747:Seafood / Q000032:analysis*; D047528:Stichopus / Q000737:chemistry
chemical_list: D019216:Metals, Heavy; D002104:Cadmium; D007854:Lead; D000535:Aluminum; D001151:Arsenic
keywords: Chordata; DMA; Echinodermata; ICP-MS; ICP-OES; heavy metal