Effects of mineral oil spray additives on the distribution and dissipation kinetics of pyraclostrobin and azoxystrobin in banana leaves, fruits, and soil.
Biomed Chromatogr
; 34(3): e4745, 2020 Mar.
Article
en En
| MEDLINE
| ID: mdl-31725903
Using LC-MS/MS, a rapid and sensitive method for the simultaneous determination of pyraclostrobin and azoxystrobin residues in banana matrices (leaf and whole banana) and soil was established. The samples were extracted using acetonitrile and purified through C18 dispersive solid-phase extraction. The average recovery of the analytes in various matrices was in the range of 77.3%-103.9% with an RSD range of 0.9%-9.5%. The initial deposition amounts of pyraclostrobin and azoxystrobin at 2 h in the banana leaves of the mineral oil group were 1.43 and 1.31 times in Guangxi, and 2.10 and 1.81 times in Hainan for the water group, whereas those in the soil of the water group were 3.45 and 3.03 times in Guangxi, and 2.14 and 3.48 times in Hainan for the mineral oil group. The half-lives in the leaves and soil of the mineral oil group were not remarkably different from those of the water group. The terminal residue of the analytes on the whole banana was <0.02 mg/kg at 14 days after application from the two sites. The results of this work may indicate and promote the safety of using pyraclostrobin and azoxystrobin in banana production, especially with mineral oil spray adjuvants.
Palabras clave
Texto completo:
1
Banco de datos:
MEDLINE
Asunto principal:
Pirimidinas
/
Aceite Mineral
/
Residuos de Plaguicidas
/
Musa
/
Estrobilurinas
Tipo de estudio:
Prognostic_studies
Idioma:
En
Revista:
Biomed Chromatogr
Año:
2020
Tipo del documento:
Article
País de afiliación:
China