Residue analysis of picoxystrobin in oriental melon using gas chromatography coupled with electron capture detection and mass spectrometric confirmation: application to dissipation kinetics and risk assessment

Kabir M. H., Rahman M. M., Abd El-Aty A. M., Chung H. S., Lee H. S., Park S., ...Daha Fazla

FOOD SCIENCE AND BIOTECHNOLOGY, cilt.26, sa.4, ss.1145-1153, 2017 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 26 Sayı: 4
  • Basım Tarihi: 2017
  • Doi Numarası: 10.1007/s10068-017-0145-8
  • Dergi Adı: FOOD SCIENCE AND BIOTECHNOLOGY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.1145-1153
  • Anahtar Kelimeler: Picoxystrobin, GC-ECD, Dissipation kinetics, Risk assessment, Confirmation, Residue determination, PESTICIDE-RESIDUES, VEGETABLES, FRUITS
  • Atatürk Üniversitesi Adresli: Evet

Özet

This study was carried out to determine the residual amounts of picoxystrobin in oriental melon (Cucumis melo L.) grown under plastic house conditions at two different sites. Samples collected over 10 days were extracted using acetonitrile and salting out (using solid sodium chloride) and purified using Florisil SPE cartridges. The analyte was determined using GC-ECD and field-incurred residues were verified using GC-MS. The calibration curve was linear over the range 0.02-2.0 mg/L with a R (2) = 0.9998. The LOD and LOQ were 0.003 and 0.01 mg/kg, respectively. Recoveries, tested at three spiking levels, were satisfactory with rates in the range 87.7-101.5% and relative standard deviations ae9.6. The dissipation half-lives were 3.4 and 3.7 days for sites 1 and 2, respectively. Hazard estimates obtained using hazard quotients revealed no health risk from the suggested pesticide application dosage when considering an adult's body weight, oriental melon consumption, and the acceptable daily intake of picoxystrobin.