Dissipation of Cyflumetofen and Sulfoxaflor Residues in Cucumber fruits (Cucumis sativus ) under Greenhouse Conditions using the QuEChERS Method and HPLC/DAD
Ahmed, â., Elhafny, D., Ibrahim, E., Abdel-Rahman, H. (2022). Dissipation of Cyflumetofen and Sulfoxaflor Residues in Cucumber fruits (Cucumis sativus ) under Greenhouse Conditions using the QuEChERS Method and HPLC/DAD. EKB Journal Management System, 65(132), 25-31. doi: 10.21608/ejchem.2022.100756.4884
‪M. A. A. Ahmed; D. Elhafny; E. S. Ibrahim; H. R. Abdel-Rahman. "Dissipation of Cyflumetofen and Sulfoxaflor Residues in Cucumber fruits (Cucumis sativus ) under Greenhouse Conditions using the QuEChERS Method and HPLC/DAD". EKB Journal Management System, 65, 132, 2022, 25-31. doi: 10.21608/ejchem.2022.100756.4884
Ahmed, â., Elhafny, D., Ibrahim, E., Abdel-Rahman, H. (2022). 'Dissipation of Cyflumetofen and Sulfoxaflor Residues in Cucumber fruits (Cucumis sativus ) under Greenhouse Conditions using the QuEChERS Method and HPLC/DAD', EKB Journal Management System, 65(132), pp. 25-31. doi: 10.21608/ejchem.2022.100756.4884
Ahmed, â., Elhafny, D., Ibrahim, E., Abdel-Rahman, H. Dissipation of Cyflumetofen and Sulfoxaflor Residues in Cucumber fruits (Cucumis sativus ) under Greenhouse Conditions using the QuEChERS Method and HPLC/DAD. EKB Journal Management System, 2022; 65(132): 25-31. doi: 10.21608/ejchem.2022.100756.4884

Dissipation of Cyflumetofen and Sulfoxaflor Residues in Cucumber fruits (Cucumis sativus ) under Greenhouse Conditions using the QuEChERS Method and HPLC/DAD

Egyptian Journal of Chemistry
Volume 65, Issue 132, December 2022, Page 25-31  XML PDF (324.86 K)
Document Type: Original Article
DOI: 10.21608/ejchem.2022.100756.4884
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Authors
‪M. A. A. Ahmed email 1; D. Elhafny2; E. S. Ibrahim3; H. R. Abdel-Rahman3
1Technical Support and Marketing at Rotam Agro-Chemical Egypt.
2Pesticides Residues and Environmental Pollution Dept., Central Agricultural Pesticides Laboratory, Agricultural Research Center, Giza, Egypt.
3Department of Economic Entomology and Pesticides, Faculty of Agriculture, Cairo University, Egypt.
Abstract
Determination of cyflumetofen and sulfoxaflor residues in treated cucumber samples (Cucumis sativus), which were collected randomly 0, 1, 2, 3, 5, 7, 10, and 15 days after treatment using quick, easy, cheap, effective, rugged, safe (QuEChERS) and cleanup step utilizing dispersive solid-phase extraction (DSPE) and followed by determination high-performance liquid chromatography with diode-array detection (HPLC/DAD). Cyflumetofen was recovered within 87.60-99.43%, while sulfoxaflor was recovered within 80.85-100.14%, with relative standard deviations (RSDs), ranging from 3.97-6.21% and 3.46-5.94% respectively, in cucumber samples at the spike levels (0.1 - 1 mg/kg). Good linearity was achieved for cyflumetofen with an excellent correlation coefficient of R2> 0.99and sulfoxaflor also showed R2> 0.98. The initial deposits of cyflumetofen and sulfoxaflor averaged 1.44 and 2.29 mg/kg, respectively. The half-life period (RL50) of cyflumetofen and sulfoxaflor were 0.60 and 1.31 days, respectively. According to the maximum residue level (MRL), which reached 0.4 mg/kg for cyflumetofen and 0.5 mg/kg for sulfoxaflor, the pre-harvest interval (PHI) was 3 days and 7 days, respectively.
Keywords
Cyflumetofen; Sulfoxaflor; Dissipation; QuEChERS; HPLC/DAD and Cucumber
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