Chemical analyses of environmental samples from Antartica: spectrometric determination of Cd, Cr, Ni and Pb, use of micro X-Ray fluorescence with synchrotron radiation and application of chemometric tools

• Grant number: 08/08260-3
• Support Opportunities: Scholarships in Brazil - Doctorate (Direct)
• Start date: May 01, 2009
• End date: July 31, 2011
• Field of knowledge: Physical Sciences and Mathematics - Chemistry - Analytical Chemistry
• Principal Investigator: Edenir Rodrigues Pereira Filho
• Grantee: Marcelo Braga Bueno Guerra
• Host Institution: Centro de Ciências Exatas e de Tecnologia (CCET). Universidade Federal de São Carlos (UFSCAR). São Carlos , SP, Brazil

Abstract

The Brazilian activities at Antarctica take place a fundamental role to maintain the scientific Brazilian independency and, in this case, Brazil can participate in the international decisions about Antarctica. The goal of this scientific project is to study soils and plants from Antarctica using spectrometric techniques (TS-FF-AAS, FAAS, GFAAS) according to the required detection of limits. The total and bioavailable Cd, Cr, Ni and Pb concentrations will be determined in soils samples from impacted areas (areas near the Brazilian, Chilean, Chinese, Russian and Uruguayan scientific stations) and regions with low human activities. In this case, the effects of human will be evaluated. Vegetable material will be also analyzed (moss and lichens). X-Ray fluorescence with Synchrotron Radiation will used to verify qualitative differences among the areas. The preliminary results were successfully obtained and gave important information about the further experiments. With the results of this project several contributions can be obtained in order to draw an environmental panorama of the Antarctica. (AU)

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)

SOUSA-SOUTO, LEANDRO; BUENO GUERRA, MARCELO BRAGA; AMBROGI, BIANCA G.; PEREIRA-FILHO, EDENIR R.. Nest refuse of leaf-cutting ants mineralize faster than leaf fragments: Results from a field experiment in Northeast Brazil. APPLIED SOIL ECOLOGY, v. 61, n. SI, p. 131-136, OCT 2012. (08/08260-3)

GUERRA, MARCELO B. B.; ROSA, PAULA F.; SCHAEFER, CARLOS E. G. R.; MICHEL, ROBERTO F. M.; ALMEIDA, IVAN C.; PEREIRA-FILHO, EDENIR R.. Chemometric tools in chemical fractionation data of soil samples from five antarctic research stations. Journal of the Brazilian Chemical Society, v. 23, n. 7, p. 1388+, JUL 2012. (07/04515-4, 09/09481-6, 08/08260-3)

BUENO GUERRA, MARCELO BRAGA; SCHAEFER, CARLOS ERNESTO G. R.; ROSA, PAULA DE FREITAS; SIMAS, FELIPE N. B.; PEREIRA, THIAGO T. C.; PEREIRA-FILHO, EDENIR RODRIGUES. Heavy Metals Contamination in Century-Old Manmade Technosols of Hope Bay, Antarctic Peninsula. WATER AIR AND SOIL POLLUTION, v. 222, n. 1-4, p. 91-102, NOV 2011. (07/04515-4, 09/09481-6, 08/08260-3)

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)

SALAZAR, RODRIGO F. S.; GUERRA, MARCELO B. B.; PEREIRA-FILHO, EDENIR R.; NOBREGA, JOAQUIM A.. Performance evaluation of collision-reaction interface and internal standardization in quadrupole ICP-MS measurements. Talanta, v. 86, p. 241-247, OCT 30 2011. (08/08260-3, 06/59083-9)

SOUSA-SOUTO, LEANDRO; BUENO GUERRA, MARCELO BRAGA; AMBROGI, BIANCA G.; PEREIRA-FILHO, EDENIR R.. Nest refuse of leaf-cutting ants mineralize faster than leaf fragments: Results from a field experiment in Northeast Brazil. APPLIED SOIL ECOLOGY, v. 61, p. 6-pg., 2012-10-01. (08/08260-3)

SOUSA-SOUTO, LEANDRO; DE JESUS SANTOS, DANIELLE CAROLINE; AMBROGI, BIANCA GIULIANO; CAMPOS DOS SANTOS, MARIO JORGE; BUENO GUERRA, MARCELO BRAGA; PEREIRA-FILHO, EDENIR RODRIGUES. Increased CO2 emission and organic matter decomposition by leaf-cutting ant nests in a coastal environment. SOIL BIOLOGY & BIOCHEMISTRY, v. 44, n. 1, p. 21-25, JAN 2012. (08/08260-3)

GUERRA, MARCELO B. B.; AMARASIRIWARDENA, DULASIRI; SCHAEFER, CARLOS E. G. R.; PEREIRA, CATARINIE D.; SPIELMANN, ADRIANO A.; NOBREGA, JOAQUIM A.; PEREIRA-FILHO, EDENIR R.. Biomonitoring of lead in Antarctic lichens using laser ablation inductively coupled plasma mass spectrometry. Journal of Analytical Atomic Spectrometry, v. 26, n. 11, p. 2238-2246, 2011. (08/08260-3, 06/59083-9)

BUENO GUERRA, MARCELO BRAGA; GONCALVES REYNAUD SCHAEFER, CARLOS ERNESTO; MACHADO MICHEL, ROBERTO FERREIRA; ROSA, PAULA DE FREITAS; PEREIRA-FILHO, EDENIR RODRIGUES. CHEMOMETRIC AND ANALYTICAL STRATEGIES FOR THE STUDY OF SOILS FROM MARITIME ANTARCTICA. BRAZILIAN JOURNAL OF ANALYTICAL CHEMISTRY, v. 1, n. 3, p. 10-pg., 2011-01-01. (07/04515-4, 09/09481-6, 08/08260-3)