Naslov
Tartaric, citric and dipicolinic acid effects on ICP-AES excitation conditions

Autori
Rončević, Sanda ; Pitarević Svedružić, Lovorka ; Mudrić, Sandra

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

Skup
The 2007 European Winter Conference on Plasma Spectrochemistry

Mjesto i datum
Taormina, Italija, 18.02.2007. - 23.02.2007

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
ICP-AES; organic matrix effect

Sažetak
Organic matrix introduction into plasma is challenging analytical problem in inductively coupled plasma atomic emission spectrometry (ICP-AES). Due to their complex nature, these kinds of interferences have not yet been fully explained. Dissolved organic ligands are most common matrices in element separation purposes, especially in hyphenated HPLC and ICP-AES techniques. The effects of solutions of tartaric, citric and dipicolinic acid, usually used as ligands in separation of transition metals by ion chromatography, were studied after introduction into plasma. The changes in intensity of representative Cd, Cu, Li, Mg and Mn emission lines were determined for radial and axial plasma view. Influences of different ligand concentrations on excitation conditions of elements were studied after measurement of emission intensity and determination of signal-to-background ratio and detection limits. The ionic-to-atomic line intensity ratio of selected elements was calculated in order to compare the values obtained for water and solutions with organic acids. The different magnitude of the effects on emission line intensity caused by tartaric, citric and dipicolinic acid introduction into plasma were established.

Izvorni jezik
Engleski

Znanstvena područja
Kemija

POVEZANOST RADA