Detecting fludioxonil residues in brown rice and rice straw using gas chromatography-nitrogen phosphorus detector
JOURNAL OF THE KOREAN SOCIETY FOR APPLIED BIOLOGICAL CHEMISTRY, cilt.58, sa.2, ss.213-217, 2015 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 58 Sayı: 2
- Basım Tarihi: 2015
- Doi Numarası: 10.1007/s13765-015-0040-z
- Dergi Adı: JOURNAL OF THE KOREAN SOCIETY FOR APPLIED BIOLOGICAL CHEMISTRY
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Sayfa Sayıları: ss.213-217
- Anahtar Kelimeler: Analysis, Fungicide, Rice, Rice straw, Gas chromatography, Contaminant, PESTICIDES
- Atatürk Üniversitesi Adresli: Hayır
Özet
In the present study, brown rice was steeped in 20 % wettable powder fludioxonil for 24 h, subsequently germinated, and transplanted in paddy fields. The harvested rice was tested at 156 days to detect residue levels using gas chromatography-nitrogen phosphorus detector. Validation was carried out to assess the following parameters: linearity, limit of detection and limit of quantitation (LOQ), recovery, and storage stability. Using matrix-matched calibrations, the determination coefficients were > 0.999 in both matrices. Mean recoveries were 73.5-101.0 % with relative standard deviations < 10 % in both matrices. The LOQ (0.006 mg/kg) was lower than the maximum residue limit (MRL = 0.02 mg/kg) set by the Ministry of Food and Drug Safety, Republic of Korea. The developed method was applied successfully, and no residues were detected in field-incurred rice and/or rice straw samples.