| Full text | |
| Author(s): |
Belinato, Joao Raul
[1, 2, 3]
;
Grandy, Jonathan J.
[3]
;
Khaled, Abir
[3]
;
Suarez, Paola Alejandra Ortiz
[3]
;
Pawliszyn, Janusz
[3]
Total Authors: 5
|
| Affiliation: | [1] Univ Estadual Campinas, Inst Chem, BR-13083970 Campinas, SP - Brazil
[2] Natl Inst Sci & Technol Bioanal INCTBio, Campinas, SP - Brazil
[3] Univ Waterloo, Dept Chem, 200 Univ Ave West, Waterloo, ON N2L 3G1 - Canada
Total Affiliations: 3
|
| Document type: | Journal article |
| Source: | Food Chemistry; v. 340, MAR 15 2021. |
| Web of Science Citations: | 0 |
| Abstract | |
Pyrethroids insecticides may constitute a major hazard to honeybees, leading to colony collapse disorder. However, the determination of pyrethroids in honey has remained a challenging undertaking for analysts to date due to the high complexity of this matrix as well as the MRLs. This paper presents a fully automated method to overcome matrix influences using matrix-compatible overcoated SPME fiber for quantitative analysis of pyrethroids in diluted honey by GC-MS. The developed method was optimized using a multivariate approach providing LOQ values much lower than the stablished MRL (0.10-10 ng/g), while granting satisfactory linearity (R-2 > 0.998) in a wide linear range of 0.1-2000 ng/g, repeatability with RSDs < 10%, reproducibility RSDs < 20%, and accuracy ranging from 75 to 118% and from 82 to 120 % for inter-day and intra-day assays, respectively by using five replicates. The method herein proposed overcomes challenges presented by complex matrices while minimizing sample handling and the overall complexity of the procedure. (AU) | |
| FAPESP's process: | 18/25729-7 - High throughput biocompatible SPME coatings for metabolomic analyses |
| Grantee: | Joao Raul Belinato de Souza |
| Support Opportunities: | Scholarships abroad - Research Internship - Doctorate |
| FAPESP's process: | 16/20547-2 - Characterization of the metabolome of anti-phytopatogen microorganisms by Multidimensional Gas Chromatography and Simple / Tandem Mass Spectrometry (GC×GC-QMS and GC×GC-MS/MS) |
| Grantee: | Joao Raul Belinato de Souza |
| Support Opportunities: | Scholarships in Brazil - Doctorate |