Residue analysis of orthosulfamuron herbicide in fatty rice using liquid chromatography-tandem mass spectrometry

Lee Y., Choi J., Abd El-Aty A. M. A., Im S. J., Rahman M. M., Kim S., ...Daha Fazla

JOURNAL OF ADVANCED RESEARCH, cilt.6, sa.3, ss.511-516, 2015 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 6 Sayı: 3
  • Basım Tarihi: 2015
  • Doi Numarası: 10.1016/j.jare.2014.06.004
  • Dergi Adı: JOURNAL OF ADVANCED RESEARCH
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.511-516
  • Anahtar Kelimeler: Herbicide, Orthosulfamuron, Fatty rice, Rice straw, QuEChERS, LC/MS/MS, SOLID-PHASE EXTRACTION, UNPOLISHED RICE, PESTICIDES, SULFONYLUREA
  • Atatürk Üniversitesi Adresli: Hayır

Özet

In the present study, orthosulfamuron residues were extracted from fatty (unpolished) rice and rice straw using a modified QuEChERS method and analyzed using liquid chromatography-tandem mass spectrometry. The matrix-matched calibration was linear over the concentration ranges of 0.01-2.0 mg/kg with determination coefficient (R-2) >= 0.997. The recovery rates at two fortification levels (0.1 and 0.5 mg/kg) were satisfactory and ranged between 88.1% and 100.6%, with relative standard deviation (RSD) < 8%. The limit of quantitation, 0.03 mg/kg, was lower than the maximum residue limit, 0.05 mg/kg, set by the Ministry of Food and Drug Safety in the Republic of Korea. The developed method was applied successfully to field samples harvested at 116 days and none of the samples were positive for the residue. (C) 2014 Production and hosting by Elsevier B.V. on behalf of Cairo University.