Determination of Toxic Metals in Cephalopods from South Korea. (2nd July 2016)

• Record Type: Journal Article
• Authors: Nho, Eun Yeong; Khan, Naeem; Choi, Ji Yeon; Kim, Jae Sung; Park, Kyung Su; Kim, Kyong Su
• Is Part Of: Analytical letters. Volume 49:Number 10(2016)
• Page Start: 1578
• Page End: 1588
• Publication Date: 2016-07-02
• Subjects: Cephalopods -- heavy metals -- inductively coupled plasma-mass spectrometry -- inductively coupled plasma-optical emission spectrometry -- South Korea; Chemistry, Analytic -- Periodicals; Chemistry, Analytic -- Abstracts; 543
• DOI: 10.1080/00032719.2015.1107082
• Languages: English
• ISSNs: 0003-2719

Abstract

ABSTRACT: This study determined lead, cadmium, arsenic, mercury, and aluminum in six cephalopod species commercially available to consumers in South Korea. The samples were prepared by microwave-assisted acid digestion and analyzed by inductively coupled plasma-mass spectrometry (ICP-MS) for As, Pb, and Cd and inductively coupled plasma-optical emission spectrometry (ICP-OES) for Al. Hg was determined by a direct mercury analyzer with furnace-gold amalgation. Linearity, sensitivity, precision, accuracy, and recovery measurements were performed for validation. The analytical results showed that the average concentrations of metals were in decreasing order of Al>As>Cd>Pb>Hg. Paroctopus dofleini contained relatively high concentrations of Pb (0.43 mg/kg) and As (14.6 mg/kg); Todarodes pacificus contained high Cd (15.0 mg/kg), whereas Al (40.4 mg/kg) was highest in Loligo beka. Using the guidelines specified by Korean Food Regulations, the United Nations, and the European Commission, we found that the concentrations of these metals in the cephalopods studied were low and did not pose any threat to consumers.