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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Determination of furanic aldehydes in sugarcane bagasse by high-performance liquid chromatography with pulsed amperometric detection using a modified electrode with nickel nanoparticles

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Author(s):
da Silva, Jose Luiz [1] ; Beluomini, Maisa Azevedo [1] ; Stradiotto, Nelson Ramos [1]
Total Authors: 3
Affiliation:
[1] Sao Paulo State Univ UNESP, Inst Chem, Dept Analyt Chem, BR-14800060 Araraquara, SP - Brazil
Total Affiliations: 1
Document type: Journal article
Source: JOURNAL OF SEPARATION SCIENCE; v. 38, n. 18, p. 3176-3182, SEP 2015.
Web of Science Citations: 10
Abstract

A glassy carbon electrode chemically modified with nickel nanoparticles coupled with reversed-phase chromatography with pulsed amperometric detection was used for the quantitative analysis of furanic aldehydes in a real sample of sugarcane bagasse hydrolysate. Chromatographic separation was carried out in isocratic conditions (acetonitrile/water, 1: 9) with a flow rate of 1.0 mL/min, a detection potential of -50 mV vs. Pd, and the process was completed within 4 min. The analytical curves presented limits of detection of 4.0 x 10(-7) mol/L and 4.3 x 10(-7) mol/L, limits of quantification of 1.3 x 10(-6) and 1.4 x 10(-6) mol/L, amperometric sensitivities of 2.2 x 10(6) nA mol/L and 2.7 x 10(6) nA mol/L for furfural and 5-hydroxymethylfurfural, respectively. The values obtained in this sample by the standard addition method were 1.54 +/- 0.02 g/kg for 5-hydroxymethylfurfural and 11.5 +/- 0.2 g/kg for furfural. The results demonstrate that this new proposed method can be used for the quick detection of furanic aldehydes without the interference of other electroactive species, besides having other remarkable merits that include excellent peak resolution, analytical repeatability, sensitivity, and accuracy. (AU)

FAPESP's process: 12/00258-5 - Development of new methods for determination of sugars, furanic aldehydes and ironic acids from lignocellulosic materials derivatives of cane sugar
Grantee:Nelson Ramos Stradiotto
Support Opportunities: Program for Research on Bioenergy (BIOEN) - Regular Program Grants