Multivariate optimization in preconcentration procedure for manganese determination in seawater samples by FAAS

• Published in: Mikrochimica acta (1966) Vol. 146; no. 3-4; pp. 271 - 278
• Main Authors: FERREIRA, Adriana C, KORN, Maria Das G. A, FERREIRA, Sérgio L. C
• Format: Journal Article
• Language: English
• Published: Wien Springer 01.06.2004; New York, NY
• Subjects: Analytical chemistry; Chemistry; Exact sciences and technology; Spectrometric and optical methods; Brazil; Brazil, Bahia, Salvador; PAR; Solid phase extraction; Metal ion; Manganese II; Multivariate analysis; manganese; Optimization; Chemical enrichment; Accuracy; Activated carbon; Detection limit; Standard curve; flame AAS; Robustness; Quantitative analysis; Seawater; Doehlert matrix; preconcentration; Matrix effect; Variance analysis; Certified reference material; Flame spectrometry; Sorption; Biological compound; Factorial design; Atomic absorption spectrometry

In the present paper, a preconcentration procedure for manganese determination in seawater samples by flame atomic absorption spectrometry (FAAS) is proposed. It is based on the solid phase extraction of manganese(II) ions as a 4(2-pyridylazo-resorcinol) (PAR) chelate using activated carbon as sorbe...