Evaluation of inductively coupled plasma high resolution mass spectrometry for sulfur determination in biodiesel and blends

• Grant number: 12/00920-0
• Support Opportunities: Scholarships abroad - Research Internship - Doctorate
• Start date: April 01, 2012
• End date: September 30, 2012
• Field of knowledge: Physical Sciences and Mathematics - Chemistry - Analytical Chemistry
• Principal Investigator: Joaquim de Araújo Nóbrega
• Grantee: Renata Stábile Amais
• Supervisor: Stephen E. Long
• Host Institution: Centro de Ciências Exatas e de Tecnologia (CCET). Universidade Federal de São Carlos (UFSCAR). São Carlos , SP, Brazil
• Institution abroad: National Institute of Standards and Technology (NIST), United States
• Associated to the scholarship: 10/17387-7 - Assessment of spectroanalytical techniques and sample preparation procedures for the determination of sulfur in biodiesel and diesel blends, BP.DR

Abstract

Inductively coupled plasma mass spectrometry (ICP-MS) is an instrumental technique with high analytical performance considering the multielementar capability and low instrumental limits of detection. However, besides the relatively simple mass spectrum, some elements, such as sulfur, are drastically affected by isobaric polyatomic interferences in spectrometers with quadrupole mass analyzer. These interferences are difficultly destroyed or overcome considering how close are the mass/charge ratio of the analyte and the interfering ion and the low resolution of the quadrupole. Thus, this research project propose the development of an analytical procedure for sulfur determination in biodiesel sample by inductively coupled plasma high resolution mass spectrometry (ICP-HRMS). Moreover, considering the high resolution of the equipment, it will be also possible to get more information about the spectral environment and to obtain a better understanding of spectral interferences that affect sulfur determination in the ICP-MS with quadrupole analyzer available at the Group of Applied Instrumental Analysis (GAIA). (AU)

Scientific publications

(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)

AMAIS, RENATA S.; NOBREGA, JOAQUIM A.; DONATI, GEORGE L.. The interference standard method: evidence of principle, potentialities and limitations. Journal of Analytical Atomic Spectrometry, v. 29, n. 7, p. 1258-1264, 2014. (06/59083-9, 10/17387-7, 12/00920-0)

AMAIS, RENATA S.; LONG, STEPHEN E.; NOBREGA, JOAQUIM A.; CHRISTOPHER, STEVEN J.. Determination of trace sulfur in biodiesel and diesel standard reference materials by isotope dilution sector field inductively coupled plasma mass spectrometry. Analytica Chimica Acta, v. 806, p. 91-96, JAN 2 2014. (10/17387-7, 12/00920-0)