期刊论文详细信息
Journal of the Brazilian Chemical Society
Analytical performance of an inductively coupled plasma optical emission spectrometry with Dual View configuration
Universidade Estadual de Campinas, Campinas, Brazil1  Universidade Federal de São Carlos, São Carlos, Brazil1  Baccan, Nivaldo1  Silva, Júlio C. J.1  Nóbrega, Joaquim A.1 
关键词: ICP OES;    axial view;    radial view;    robustness;    sensitivity;    Mg II/Mg I ratio;   
DOI  :  10.1590/S0103-50532003000200020
学科分类:化学(综合)
来源: SciELO
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【 摘 要 】

The analytical performance of axially and radially viewed inductively coupled plasma optical emission spectrometers (AX-ICP OES and RD-ICP OES, respectively) were evaluated in terms of the Mg II/Mg I ratio, matrix effects, and detection limits (LOD). All solutions were made in either 1% v v-1 nitric acid or in a 10% v v-1 water-soluble tertiary amine solution (CFA-C) adjusted to pH 8. Using a nebulization gas flow-rate of 0.5 L min-1 and applied power of 1.3 kW, Mg II/Mg I ratio was at least 15 in any medium for both configurations. Under robust conditions, plasma processes were practically not affected by the presence of 0.1% m v-1 of Ca, K, or Na in both configurations. However, interference effects were observed with non-robust conditions, mainly with AX-ICP OES in both media. The best detection limits were obtained using AX-ICP OES under robust conditions, with solutions prepared in the amine medium.

【 授权许可】

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