Use of calibration strategies for fast sequential multi-element determination of Cd, Cu, Pb and Zn in biological and food samples using thermospray flame furnace atomic absorption spectrometry

• Grant number: 09/01447-3
• Support Opportunities: Scholarships in Brazil - Doctorate
• Start date: May 01, 2009
• End date: February 29, 2012
• Field of knowledge: Physical Sciences and Mathematics - Chemistry - Analytical Chemistry
• Principal Investigator: Edenir Rodrigues Pereira Filho
• Grantee: Kelber dos Anjos de Miranda
• Host Institution: Centro de Ciências Exatas e de Tecnologia (CCET). Universidade Federal de São Carlos (UFSCAR). São Carlos , SP, Brazil

Abstract

Sequential multi-element determination using a flame atomizer is an interesting alternative to atomic absorption spectrometry. Fast sequential flame atomic absorption spectrometry (FS-FAAS) is a sequential multi-element technique that keeps the advantages of flame atomic absorption spectrometry (FAAS), being an adequate tool to determine the concentration of several elements in the mg/L range. The development of thermospray flame furnace atomic absorption spectrometry (TS-FF-AAS) in 2000 provided a significant detectability improvement of volatile elements (Ag, As, Au, Bi, Cd, Cu, Hg, In, K, Pb, Pd, Rb, Sb, Se, Te, Tl e Zn)in relation to FAAS, resulting in limits of detection (LOD)in the microgram per liter range. However, TS-FF-AAS is considered a monoelementar technique. Therefore, this study proposes the sequential multi-element determination of Cd, Cu, Pb and Zn by TS-FF-AAS in biological and food slurry samples. Limits of detection of these elements, memory effects, peristaltic pump flow, performance of tube atomizers, effects of concomitants, and the use of the reference element technique to solve interference problems will be evaluated. Certified reference materials will be used to verify precision and accuracy of the proposed methods. (AU)

Scientific publications

(6)

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

BATISTA, ERICA F.; PESSOA, AMALIA G. G.; GUERRA, MARCELO B. B.; MIRANDA, KELBER; PEREIRA-FILHO, EDENIR R.. Fast Sequential Determination of As and Sb, Bi and Pb by Continuous Flow Hydride Generation Atomic Absorption Spectrometry. FOOD ANALYTICAL METHODS, v. 6, n. 4, p. 1212-1222, AUG 2013. (07/04515-4, 09/01447-3, 08/08260-3)

BUENO GUERRA, MARCELO BRAGA; CARAPELLI, RODOLFO; MIRANDA, KELBER; ARAUJO NOGUEIRA, ANA RITA; PEREIRA-FILHO, EDENIR RODRIGUES. Determination of As and Sb in mineral waters by fast sequential continuous flow hydride generation atomic absorption spectrometry. ANALYTICAL METHODS, v. 3, n. 3, p. 599-605, MAR 2011. (07/04515-4, 06/59083-9, 09/01447-3, 08/08260-3)

MIRANDA‚ K.; DIONÍSIO‚ A.G.G.; PEREIRA-FILHO‚ E.R.. Copper determination in sugar cane spirits by fast sequential flame atomic absorption spectrometry using internal standardization. Microchemical Journal, v. 96, n. 1, p. 99-101, 2010. (07/04515-4, 09/01447-3)

MIRANDA, KELBER; DIONISIO, AMALIA G. G.; PESSOA NETO, OSMUNDO D.; GOMES, MARCOS S.; PEREIRA-FILHO, EDENIR R.. Determination of Cd levels in smoke condensate of Brazilian and Paraguayan cigarettes by Thermospray Flame Furnace Atomic Absorption Spectrometry (TS-FF-AAS). Microchemical Journal, v. 100, p. 27-30, JAN 2012. (07/04515-4, 09/01447-3)

MIRANDA, KELBER; PEREIRA-FILHO, EDENIR R.. Sequential Determination of Cd, Cu and Pb in Tea Leaves by Slurry Introduction to Thermospray Flame Furnace Atomic Absorption Spectrometry. FOOD ANALYTICAL METHODS, v. 6, n. 6, p. 1607-1610, DEC 2013. (07/04515-4, 09/01447-3)

MIRANDA, KELBER; PEREIRA-FILHO, EDENIR RODRIGUES. Potentialities of thermospray fame furnace atomic absorption spectrometry (TS-FF-AAS) in the fast sequential determination of Cd, Cu, Pb and Zn. ANALYTICAL METHODS, v. 1, n. 3, p. 215-219, DEC 2009. (07/04515-4, 09/01447-3)