Evaluation of pesticide residues in wheat flour by mass spectrometry
Cereals are an important economic factor and food source, which wheat and its flour stand out. Pesticides are often employed to control harmful organisms, but their abusive use can cause damage to human health and the environment.This study aimed to evaluate the presence of pesticide residues in wh...
| Authors: | , , , , , |
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| Format: | article |
| Status: | Published version |
| Publication Date: | 2022 |
| Country: | Brasil |
| Institution: | Instituto Adolfo Lutz |
| Repository: | Revista do Instituto Adolfo Lutz (Online) |
| Language: | Portuguese |
| OAI Identifier: | oai:ojs.periodicos.saude.sp.gov.br:article/37179 |
| Online Access: | https://periodicos.saude.sp.gov.br/RIAL/article/view/37179 |
| Access Level: | Open access |
| Keyword: | Flour Mass Spectrometry QuEChERS Pesticides Farinha Espectrometria de Massas Agrotóxicos |
| Summary: | Cereals are an important economic factor and food source, which wheat and its flour stand out. Pesticides are often employed to control harmful organisms, but their abusive use can cause damage to human health and the environment.This study aimed to evaluate the presence of pesticide residues in wheat flour samples commercialized in the state of São Paulo – Brazil, using the modified QuEChERS (Quick, Easy, Cheap, Effective, Rugged and Safe) method, followed by GCMS/MS and UHPLC-HRMS analysis for identification and quantification. Thus, 124 active ingredients (a.i.) were within acceptable criteria for linearity, limits of detection and quantification, accuracy (trueness), and precision (95% confidence level; k = 2). The results for 25 wheat flour samples showed the presence of bifenthrin, fenitrothion, chlorpyrifos, deltamethrin, lambda-cyhalothrin, and pirimiphos-methyl, and the last four a.i. were also detected in organic wheat flour.Pirimiphos-methyl was detected in 92% of all samples. All compounds were found below the Maximum Residue Levels (MRL) established by Brazilian Health Regulatory Agency (Anvisa) for wheat flour and the samples were consideredsuitable for consumption. |
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