Development of procedures to As, Ba, Cd, Cr, Pb and Si determination in fertilizer samples by using microwave inductive plasma optical emission spectrometry (MIP OES)

• Grant number: 13/26672-5
• Support Opportunities: Scholarships in Brazil - Doctorate
• Start date: April 01, 2014
• End date: April 30, 2018
• Field of knowledge: Physical Sciences and Mathematics - Chemistry - Analytical Chemistry
• Principal Investigator: Ana Rita de Araujo Nogueira
• Grantee: Raquel Cardoso Machado
• Host Institution: Embrapa Pecuária Sudeste. Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA). Ministério da Agricultura, Pecuária e Abastecimento (Brasil). São Carlos , SP, Brazil
• Associated scholarship(s): 16/07749-5 - Evaluation of isotope dilution and electrothermal vaporization (ETV) introduction system for the multielemental determination in fertilizers via DRC-ICP-MS using CH3F as a reaction gas, BE.EP.DR

Abstract

The use of fertilizers in agriculture has intensified with the increase of agricultural production, providing essential nutrients to the soil for the crops growth and development. However, fertilizer can also be source of toxic elements such as As, Ba, Cd, Cr and Pb, from raw materials and manufacturing processes, so it is important to monitor the concentrations of these contaminants in fertilizers. In the other hand, it is also important to monitor the concentrations of Si , considering that this nutrient is essential to increase the resistance of plants to drought stress and favors the reduction of pests in crops. In this context, this research project, which is developing in the PhD program at PPGQ, Federal University of São Carlos, proposes the development of analytical procedures for the determination of As, Ba, Cd, Cr, Pb, and Si in samples of mineral fertilizers by optical spectrometry with microwave inductive plasma optical emission spectrometry (MIP OES). This proposal is relevant in many aspects. It covers studies involving aspects related to the adequate preparation of the samples and multielemental determination of major elements to be monitored in fertilizers used in the country . Besides the acid decomposition and basic medium, will also be assessing determinations by using suspensions. The development of studies can contribute to broaden the applications of MIP OES in more complex matrices, allowing the investigation of strategies to eliminate possible interference and thus develop an analytical methodology with similar or superior performance to existing alternatives .

Scientific publications

(8)

(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.; MACHADO, RAQUEL C.; VIRGILIO, ALEX; SCHIAVO, DANIELA; NOGUEIRA, ANA RITA A.; NOBREGA, JOAQUIM A.. Critical evaluation of internal standardization in ICP tandem mass spectrometry and feasibility of the oxygen reaction for boron determination in plants. Journal of Analytical Atomic Spectrometry, v. 31, n. 6, p. 1179-1184, JUN 2016. (13/26672-5, 14/18393-1, 15/14488-0)

AMARAL, CLARICE D. B.; MACHADO, RAQUEL C.; BARROS, JUAN A. V. A.; VIRGILIO, ALEX; SCHIAVO, DANIELA; NOGUEIRA, ANA RITA A.; NOBREGA, JOAQUIM A.. Determination of Rare Earth Elements in Geological and Agricultural Samples by ICP-OES. Spectroscopy, v. 32, n. 10, p. 32-36, OCT 2017. (13/26672-5, 14/18393-1, 15/14488-0)

MACHADO, RAQUEL C.; AMARAL, CLARICE D. B.; SCHIAVO, DANIELA; NOBREGA, JOAQUIM A.; NOGUEIRA, ANA RITA A.. Complex samples and spectral interferences in ICP-MS: Evaluation of tandem mass spectrometry for interference-free determination of cadmium, tin and platinum group elements. Microchemical Journal, v. 130, p. 271-275, JAN 2017. (13/26672-5, 15/14488-0)

MACHADO, RAQUEL C.; SILVA, ANA BEATRIZ S.; DONATI, GEORGE L.; NOGUEIRA, ANA RITA A.. Multi-energy calibration as a strategy for elemental analysis of fertilizers by microwave-induced plasma optical emission spectrometry. Journal of Analytical Atomic Spectrometry, v. 33, n. 7, p. 1168-1172, JUL 2018. (13/26672-5, 15/14488-0)

RAQUEL C. MACHADO; ALEX VIRGILIO; CLARICE D. B. AMARAL; DANIELA SCHIAVO; JOAQUIM A. NÓBREGA; ANA RITA A. NOGUEIRA. Evaluation of Inductively Coupled Plasma Tandem Mass Spectrometry for Determination of As in Agricultural Inputs with High REE Contents. Journal of the Brazilian Chemical Society, v. 27, n. 11, p. 2076-2081, 2016-11-00. (15/14488-0, 14/18393-1, 13/26672-5)

AMARAL, CLARICE D. B.; SCHIAVO, DANIELA; BARROS, JUAN A. V. A.; MACHADO, RAQUEL C.; NOGUEIRA, ANA RITA A.; NOBREGA, JOAQUIM A.. Characterization of Synchronous Vertical Dual View Inductively Coupled Plasma Optical Emission Spectrometer with Application for Water Analysis. Analytical Letters, v. 49, n. 13, p. 2092-2098, 2016. (13/26672-5)

MACHADO, RAQUEL C.; PEREIRA-FILHO, EDENIR R.; NOGUEIRA, ANA RITA A.. Strategy of Sample Preparation for Arsenic Determination in Mineral Fertilizers. Journal of the Brazilian Chemical Society, v. 27, n. 7, p. 1273-1278, JUN 2016. (13/26672-5, 15/14488-0)

MACHADO, RAQUEL C.; AMARAL, CLARICE D. B.; NOBREGA, JOAQUIM A.; ARAUJO NOGUEIRA, ANA RITA. Multielemental Determination of As, Bi, Ge, Sb, and Sn in Agricultural Samples Using Hydride Generation Coupled to Microwave-Induced Plasma Optical Emission Spectrometry. Journal of Agricultural and Food Chemistry, v. 65, n. 23, p. 4839-4842, JUN 14 2017. (13/26672-5, 15/14488-0)