EVALUATION OF THE DIRECT SOLID SAMPLING HIGH-RESOLUTION CONTINUUM SOURCE ATOMIC ABSORPTION SPECTROMETRY FOR ANALYSIS OF DIFFICULT SAMPLES

• Grant number: 14/12595-1
• Support Opportunities: Regular Research Grants
• Start date: October 01, 2014
• End date: September 30, 2016
• Field of knowledge: Physical Sciences and Mathematics - Chemistry - Analytical Chemistry
• Principal Investigator: José Anchieta Gomes Neto
• Grantee: José Anchieta Gomes Neto
• Host Institution: Instituto de Química (IQ). Universidade Estadual Paulista (UNESP). Campus de Araraquara. Araraquara , SP, Brazil
• City of the host institution: Araraquara
• Associated researchers: Edilene Cristina Ferreira ; Mario Henrique Gonzalez ; Mirian Cristina dos Santos

Abstract

Elemental analyses by spectrometric techniques are commonly carried out employing direct introduction of liquid samples. Solid samples must then be converted into clear solutions. Conventional procedures based on wet and dry ashing are most commonly used for preparation of solid samples. Nevertheless, they are considered laborious, time consuming, susceptible to sample contamination and analyte losses, demand large amounts of reagents and energy, and may generate noteworthy volume of hazardous residues. The direct solid sampling presents advantages over introduction of liquid samples. This proposal deals with evaluation and application of the direct solid sampling in high-resolution continuum source graphite furnace atomic absorption spectrometry (HR-CS GF AAS) to analysis of relevant samples to some strategic economic sectors in Brazil such as energy, environment, agriculture and beauty & care. Among applications are the determination of Mo and Co in biomass, and soil; Cd, Cr, Ni and Pb in cosmetics; Al, Fe and P in solar grade silicon. Certified reference materials, alternative techniques, or addition/recovery tests should be used for methods evaluation and validation. Well-established statistic tests will help to assess the main figures of merit (selectivity, recovery coefficients, linearity, precision, accuracy, limits of detection and quantification). (AU)

Scientific publications

(11)

(The scientific publications listed on this page originate from the Web of Science or SciELO databases. Their authors have cited FAPESP grant or fellowship project numbers awarded to Principal Investigators or Fellowship Recipients, whether or not they are among the authors. This information is collected automatically and retrieved directly from those bibliometric databases.)

FORTUNATO, FELIPE M.; BECHLIN, MARCOS A.; GOMES NETO, JOSE A.; VIRGILIO, ALEX; DONATI, GEORGE L.; JONES, BRADLEY T.. Standard dilution analysis in flow system: Sodium determination by flame atomic emission spectrometry. Microchemical Journal, v. 124, p. 662-667, JAN 2016. (14/18393-1, 14/12595-1, 12/23323-7)

DE BABOS, DIEGO VICTOR; BECHLIN, MARCOS ANDRE; BARROS, ARIANE ISIS; FERREIRA, EDILENE CRISTINA; GOMES NETO, JOSE ANCHIETA; DE OLIVEIRA, SILVANA RUELLA. Cobalt internal standard for Ni to assist the simultaneous determination of Mo and Ni in plant materials by high-resolution continuum source graphite furnace atomic absorption spectrometry employing direct solid sample analysis. Talanta, v. 152, p. 457-462, MAY 15 2016. (14/12595-1)

COCO, JESSICA; BECHLIN, MARCOS A.; BARROS, ARIANE I.; FERREIRA, EDILENE C.; VEIGA, MARCIA A. M. S.; NETO, JOSE A. GOMES. Development of Analytical Procedures for Lead Determination in Incense by Graphite Furnace AAS. ATOMIC SPECTROSCOPY, v. 38, n. 6, p. 208-212, NOV-DEC 2017. (14/12595-1)

BECHLIN, MARCOS ANDRE; BARROS, ARIANE ISIS; BABOS, DIEGO VICTOR; FERREIRA, EDIKNE CRISTINA; GOMES NETO, JOSE ANCHIETA. Determination of Cobalt, Iron, and Nickel in High-Purity Silicon by High-Resolution Continuum Source Graphite Furnace Atomic Absorption Spectrometry Employing Solid Sample Analysis. ATOMIC SPECTROSCOPY, v. 38, n. 3, p. 62-67, MAY-JUN 2017. (14/12595-1)

FORTUNATO, FELIPE M.; VIEIRA, ALAN L.; GOMES NETO, JOSE A.; DONATI, GEORGE L.; JONES, BRADLEY T.. Expanding the potentialities of standard dilution analysis: Determination of ethanol in gasoline by Raman spectroscopy. Microchemical Journal, v. 133, p. 76-80, JUL 2017. (14/12595-1, 12/23323-7)

BARROS, ARIANE ISIS; DE BABOS, DIEGO VICTOR; FERREIRA, EDILENE CRISTINA; GOMES NETO, JOSE ANCHIETA. Effect of different precursors on generation of reference spectra for structural molecular background correction by solid sampling high-resolution continuum source graphite furnace atomic absorption spectrometry: Determination of antimony in cosmetics. Talanta, v. 161, p. 547-553, DEC 1 2016. (14/12595-1)

BARROS, ARIANE ISIS; MIRANDA, KELBER; FERREIRA, EDILENE CRISTINA; GOMES NETO, JOSE ANCHIETA. Analytical Procedures for Cadmium Determination in Facial Make-Up Samples by Graphite Furnace AAS. ATOMIC SPECTROSCOPY, v. 36, n. 2, p. 102-107, MAR-APR 2015. (14/12595-1)

SILVAA, TIAGO VARAO; MIRANDA, KELBER; FERREIRA, EDILENE CRISTINA; SANTOS, MIRIAN CRISTINA; GOMES NETO, JOSE ANCHIETA; BARBOSA, JR., FERNANDO. Determination of Lead in Plastic Food Packaging by Graphite Furnace Atomic Absorption Spectrometry. ATOMIC SPECTROSCOPY, v. 36, n. 4, p. 182-186, JUL-AUG 2015. (14/12595-1)

MIRANDA, KELBER; VIEIRA, ALAN LIMA; BECHLIN, MARCOS ANDRE; FORTUNATO, FELIPE MANFROI; VIRGILIO, ALEX; FERREIRA, EDILENE CRISTINA; GOMES NETO, JOSE ANCHIETA. Determination of Ca, Cd, Cu, Fe, K, Mg, Mn, Mo, Na, Se, and Zn in Foodstuffs by Atomic Spectrometry After Sample Preparation Using a Low-Cost Closed-Vessel Conductively Heated Digestion System. FOOD ANALYTICAL METHODS, v. 9, n. 7, p. 1887-1894, JUL 2016. (14/18393-1, 12/23323-7, 14/12595-1, 12/02891-7)

BABOS, DIEGO VICTOR; BARROS, ARIANE ISIS; FERREIRA, EDILENE CRISTINA; GOMES NETO, JOSE ANCHIETA. Evaluation of solid sampling for determination of Mo, Ni, Co, and V in soil by high-resolution continuum source graphite furnace atomic absorption spectrometry. SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY, v. 130, p. 39-44, APR 1 2017. (14/12595-1)

BECHLIN, MARCOS A.; FERREIRA, EDILENE C.; GOMES NETO, JOSE. A.. Determination of chlorine in cement via CaCl molecule by high-resolution continuum source graphite furnace molecular absorption spectrometry with direct solid sample analysis. Microchemical Journal, v. 132, p. 130-135, MAY 2017. (14/12595-1)