Determination of iodine in enriched Chlorella by ICP-OES in the VUV region

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F05%3A00013810" target="_blank" >RIV/00216224:14310/05:00013810 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Determination of iodine in enriched Chlorella by ICP-OES in the VUV region

Original language description

A method of determining iodine in the vacuum ultraviolet region by inductively coupled plasma optical emission spectrometry in enriched Chlorella is established and evaluated. Alga Chlorella samples enriched with iodine were solubilized with tetramethylammonium hydroxide. The iodine content was quantified by inductively coupled plasma optical emission spectrometry using the 182.980 nm emission line of iodine to avoid the spectral interference from phosphorus which occurs in Chlorella at the 178.218 nm emission line of iodine. The methods accuracy was confirmed by a modified Sandell and Kolthoff spectrophotometric method (As3+, Ce4+ and brucine) after alkaline ashing, and the agreement between the methods was about 96%. The limit of detection in real samples was 3mg.kg-1 for enriched Chlorella, and the iodine content in the samples varied between 100 and 1300 mg kg-1.

Czech name

Stanovení jodu v obohacených asách Chlorella metodou ICP-OES ve VUV oblasti

Czech description

Byla vyvinuta nová metoda pro stanovení jodu v jodem obohacených rasách Chlorella ve vakuové ultrafialové oblasti. Vzorky ras byly solubilizovány roztokem tetramethylammonium hydoxidu. Obsah jodu byl kvantifikován metodou ICP-OES s využitím emisní cáry 182.980 nm z duvodu spektrální interference fosforu na emisní cáre jodu 178.218 nm, která se vyskytuje pri analýze ras Chlorella. Správnost metody byla potvrzena modifikovanou spektrofotometrickou metodou podle Sandella a Kolthoffa (As3+, Ce4+ a brucin)svyužitím alkalického spalování. Mez detekce stanovení byla 3 mg.kg-1 pro obohacené rasy Chlorella a obsah jodu ve vzorcích se pohyboval v rozmezí 100 až 1300 mg.kg-1.

Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

CB - Analytical chemistry, separation

OECD FORD branch

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Project

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Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2005

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Microchimica Acta

ISSN

0026-3672

e-ISSN

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Volume of the periodical

150

Issue of the periodical within the volume

2

Country of publishing house

AT - AUSTRIA

Number of pages

5

Pages from-to

103-107

UT code for WoS article

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EID of the result in the Scopus database

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