Naslov
Direct determination of selected trace elements in apple juice by ICP-OES

Autori
Zeiner, Michaela ; Steffan, Ilse ; Zödl, Bettina ; Juranović, Cindrić, Iva

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Abstract Book / Anu Kurki - Tampere : CONGRESZON Ltd, 2004

Skup
10th International Congress of Toxicology

Mjesto i datum
Tampere, Finska, 11.07.2004. - 15.07.2004

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
jabukov sok; ICP-AES; elementi u tragovima
(apple juice; ICP-AES; trace elements)

Sažetak
Olive oil is the edible oil obtained from the fruit of the olive tree Olea europea sativa. This vegetable oil is the fat of choice in the Mediterranean area, where the diet is said to be the reason for the lower incidence of coronary heart disease and certain cancers. A possibility of toxic metal entry into olive oils other than the technological ones is the environmental exposure to a large variety of elements. They arrive in the olive plant via deposition as well as bioaccumulation from the soil due to natural metal sources and environmental pollution. For this study Croatian virgin olive oils from fourteen different regions in Croatia were investigated. Toxic metals were determined by ETA-AAS. Sample preparation was performed by microwave assisted decomposition of the olive oil in closed vessels using a mixture of nitric acid and hydrogen peroxide. With the proposed method Cu and Al were found in the concentration range of 0.1 - 1.5 &#956; g/g with relative standard deviations of about 3 - 10%. Cr and Pb concentrations in all the samples analyzed were below the limit of detection (< 1ng/g).

Izvorni jezik
Engleski

Znanstvena područja
Kemija

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