期刊
JOURNAL OF APPLIED SPECTROSCOPY
卷 82, 期 4, 页码 681-686出版社
SPRINGER
DOI: 10.1007/s10812-015-0164-2
关键词
high-resolution continuum source atomic absorption spectrometry; determination of metals in saline matrices; water analysis; multi-element sequential analysis; SPS-WW2
类别
资金
- Ministerio de Ciencia e Innovacion [CTQ2009-14237-C02-02]
The objective of this work is to develop a method for the determination of metals in saline matrices using high-resolution continuum source flame atomic absorption spectrometry (HR-CS FAAS). Module SFS 6 for sample injection was used in the manual mode, and flame operating conditions were selected. The main absorption lines were used for all the elements, and the number of selected analytical pixels were 5 (CP +/- 2) for Cd, Cu, Fe, Ni, Pb and Zn, and 3 pixels for Mn (CP +/- 1). Samples were acidified (0.5% (v/v) nitric acid), and the standard addition method was used for the sequential determination of the analytes in diluted samples (1:2). The method showed good precision (RSD(%) < 4%, except for Pb (6.5%)) and good recoveries. Accuracy was checked after the analysis of an SPS-WW2 wastewater reference material diluted with synthetic seawater (dilution 1:2), showing a good agreement between certified and experimental results.
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