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Total concentrations and chemical speciation of As, Cr and Se using low pressure monolithic columns and inductively coupled plasma techniques

Grant number: 13/26857-5
Support Opportunities:Scholarships in Brazil - Post-Doctoral
Effective date (Start): May 01, 2014
Effective date (End): February 29, 2016
Field of knowledge:Physical Sciences and Mathematics - Chemistry - Analytical Chemistry
Principal Investigator:Fábio Rodrigo Piovezani Rocha
Grantee:Renata Stábile Amais
Host Institution: Centro de Energia Nuclear na Agricultura (CENA). Universidade de São Paulo (USP). Piracicaba , SP, Brazil
Associated research grant:11/23498-9 - Advanced flow systems for technological, agronomical and environmental analysis, AP.TEM


Agricultural conditions in agreement with the current environmental standards have promoted interest in scientific research not only in agricultural products, but also in the entire productive system. The Brazilian agriculture has a distinct position in the world scenery. In this context, the chemical analysis of water and agricultural soils that have been added with industrial wastes as a source of nutrients and determination of potentially toxic elements are important for the establishment of agricultural and environmental quality parameters and the feasibility of this practice. Thus, this research plan proposes the development of analytical procedures for determination of total concentrations and chemical speciation of As, Cr and Se by inductively coupled plasma (ICP) techniques. It is also proposed a systematic evaluation of optical emission and mass spectrometry coupled to ICP, including the evaluation of potentiality of ICP-MS/MS (tandem mass spectrometry) to overcome spectral interferences in the determination of As, Cr and Se. For speciation analysis, different strategies for sample preparation, separation of the organic and inorganic species by chromatography using monolithic columns and sequential injection chromatography (SIC) will be evaluated.

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Scientific publications (10)
(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)
AMARAL, CLARICE D. B.; AMAIS, RENATA S.; FIALHO, LUCIMAR L.; SCHIAVO, DANIELA; NOGUEIRA, ANA RITA A.; NOBREGA, JOAQUIM A.. Determination of carbon in digested samples and amino acids by inductively coupled plasma tandem mass spectrometry. Microchemical Journal, v. 122, p. 29-32, . (13/26857-5)
BATISTA, ALEX D.; AMAIS, RENATA S.; ROCHA, FABIO R. P.. Liquid-liquid microextraction in sequential injection analysis for the direct spectrophotometric determination of acid number in biodiesel. Microchemical Journal, v. 124, p. 55-59, . (13/26857-5, 14/19115-5)
VIRGILIO, ALEX; AMAIS, RENATA S.; SCHIAVO, DANIELA; NOBREGA, JOAQUIM A.. Dilute-and-Shoot Procedure for Determination of As, Cr, P, Pb, Si, and V in Ethanol Fuel by Inductively Coupled Plasma Tandem Mass Spectrometry. ENERGY & FUELS, v. 29, n. 7, p. 4339-4344, . (14/18393-1, 13/26857-5)
VIRGILIO, ALEX; AMAIS, RENATA STABILE; SCHIAVO, DANIELA; GOMES NETO, JOSE ANCHIETA; NOBREGA, JOAQUIM DE ARAUJO. Elemental Analysis of Phytotherapeutic Products by Inductively Coupled Plasma-Tandem Mass Spectrometry. Analytical Letters, v. 50, n. 5, p. 842-852, . (13/26857-5, 14/18393-1)
VIRGILIO, ALEX; AMAIS, RENATA S.; AMARAL, CLARICE D. B.; FIALHO, LUCIMAR L.; SCHIAVO, DANIELA; NOBREGA, JOAQUIM A.. Reactivity and analytical performance of oxygen as cell gas in inductively coupled plasma tandem mass spectrometry. SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY, v. 126, p. 31-36, . (14/18393-1, 13/26857-5)
AMARAL, CLARICE D. B.; AMAIS, RENATA S.; FIALHO, LUCIMAR L.; SCHIAVO, DANIELA; AMORIM, TATIANE; NOGUEIRA, ANA RITA A.; ROCHA, FABIO R. P.; NOBREGA, JOAQUIM A.. A novel strategy to determine As, Cr, Hg and V in drinking water by ICP-MS/MS. ANALYTICAL METHODS, v. 7, n. 3, p. 1215-1220, . (13/26857-5, 11/23498-9)
AMAIS, RENATA S.; VIRGILIO, ALEX; SCHIAVO, DANIELA; NOBREGA, JOAQUIM A.. Tandem mass spectrometry (ICP-MS/MS) for overcoming molybdenum oxide interferences on Cd determination in milk. Microchemical Journal, v. 120, p. 64-68, . (13/26857-5)
RENATA S. AMAIS; FÁBIO R. P. ROCHA; JOAQUIM A. NÓBREGA. Sinais de fundo em análise instrumental: uma discussão essencial em cursos de graduação. Química Nova, v. 40, n. 2, p. 228-237, . (13/26857-5, 11/23498-9)
DONATI, GEORGE L.; AMAIS, RENATA S.; WILLIAMS, CHARLES B.. Recent advances in inductively coupled plasma optical emission spectrometry. Journal of Analytical Atomic Spectrometry, v. 32, n. 7, p. 1283-1296, . (13/26857-5)
AMAIS, RENATA S.; TEIXEIRA, LEONARDO S. G.; ROCHA, FABIO R. P.. Greener procedures for biodiesel quality control. ANALYTICAL METHODS, v. 7, n. 11, p. 4396-4418, . (13/26857-5, 11/23498-9)

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