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Chitosan-magnetite nanocomposite as a sensing platform to bendiocarb determination.
- Source :
- Analytical & Bioanalytical Chemistry; Nov2018, Vol. 410 Issue 27, p7229-7238, 10p
- Publication Year :
- 2018
-
Abstract
- A novel platform for carbamate-based pesticide quantification using a chitosan/magnetic iron oxide (Chit-Fe<subscript>3</subscript>O<subscript>4</subscript>) nanocomposite as a glassy carbon electrode (GCE) modifier is shown for an analytical methodology for determination of bendiocarb (BND). The BND oxidation signal using GCE/Chit-Fe<subscript>3</subscript>O<subscript>4</subscript> compared with bare GCE was catalyzed, showing a 37.5% of current increase with the peak potential towards less positive values, showing method’s increased sensitivity and selectivity. Using square-wave voltammetry (SWV), calibration curves for BND determination were obtained (n = 3), and calculated detection and quantification limits values were 2.09 × 10<superscript>−6</superscript> mol L<superscript>−1</superscript> (466.99 ppb) and 6.97 × 10<superscript>−6</superscript> mol L<superscript>−1</superscript> (1555.91 ppb), respectively. The proposed electroanalytical methodology was successfully applied for BND quantification in natural raw waters without any sample pretreatment, proving that the GCE/Chit-Fe<subscript>3</subscript>O<subscript>4</subscript> modified electrode showed great potential for BND determination in complex samples.ᅟGraphical abstract [ABSTRACT FROM AUTHOR]
- Subjects :
- NANOCOMPOSITE materials
CHITOSAN
Subjects
Details
- Language :
- English
- ISSN :
- 16182642
- Volume :
- 410
- Issue :
- 27
- Database :
- Complementary Index
- Journal :
- Analytical & Bioanalytical Chemistry
- Publication Type :
- Academic Journal
- Accession number :
- 132400704
- Full Text :
- https://doi.org/10.1007/s00216-018-1330-1