Dispersive micro solid-phase extraction combined with laser-induced breakdown spectroscopy for multielement extraction and determination

Author(s)

de Lima Junior, Joao Manoel ; Papai, Rodrigo ; Mamian-Lopez, Monica Benicia ; Domingues, Sergio Humberto ; Nunes, Lidiane Cristina ; Krug, Francisco Jose ; Gaubeur, Ivanise

• Document type: Journal article
• Source: SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY; v. 204, p. 10-pg., 2023-06-01.

Abstract

Dispersive micro solid-phase extraction (D & mu;SPE) is based on efficiently introducing a reduced amount of solid phase into a liquid sample. Due to its large surface area and other desirable characteristics, graphene oxide has found application in the extraction of metal ions. The main objective of the present work is to use D & mu;SPE in the development of an analytical method for the determination of metal ions, such as Al3+, Cu2+, Fe3+, Mn2+, Zn2+, Ti4+, Cd2+, Ni2+, and Cr3+, in liquid samples by laser-induced breakdown spectroscopy (LIBS). Taking full advantage of D & mu;SPE combined with LIBS, graphene oxide containing metal was immobilized on agarose films and cellulose ester membranes. Calibration curves with linear ranges between 200 and 700 & mu;g L-1 using cellulose ester membranes and between 200 and 500 & mu;g L-1 using agarose films were obtained. Finally, the proposed method was applied on certified reference materials of drinking water (EP-H), groundwater (ES-L), and wastewater (EU-L). (AU)

• FAPESP's process: 17/20752-8 - EMU granted in process 2014/50887-4: ICP-MS
• Grantee: Fernando Jose Gomes Landgraf
• Support Opportunities: Multi-user Equipment Program
• FAPESP's process: 18/10476-6 - Graphene oxide applied at dispersive Solid Phase Microextraction (DSPME) to metals preconcentration in liquid samples
• Grantee: João Manoel de Lima Júnior
• Support Opportunities: Scholarships in Brazil - Master
• FAPESP's process: 11/19730-3 - Cloud point extraction (CPE) and dispersive liquid-liquid microextraction (DLLME) applied in the development of analytical methods for metals preconcentration and spectrometric determination
• Grantee: Ivanise Gaubeur
• Support Opportunities: Regular Research Grants
• FAPESP's process: 21/14125-6 - Feasibility of using laser-induced breakdown spectrometry on trace elements determination in refractory, liquid and food samples
• Grantee: Cassiana Seimi Nomura
• Support Opportunities: Regular Research Grants
• FAPESP's process: 16/23878-0 - Consolidation and innovation in the research line: analytical methods development combined to liquid phase microextraction
• Grantee: Ivanise Gaubeur
• Support Opportunities: Regular Research Grants