UNCERTAINTY MEASUREMENT OF SAMPLE PROCESSING OF TOMATO BY USING C-14-CHLORPYRIFOS FOR PESTICIDE RESIDUE ANALYSIS


TİRYAKİ O., Secer E., Aydin G., Baysoyu D.

FRESENIUS ENVIRONMENTAL BULLETIN, cilt.18, ss.770-775, 2009 (SCI-Expanded) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 18
  • Basım Tarihi: 2009
  • Dergi Adı: FRESENIUS ENVIRONMENTAL BULLETIN
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED)
  • Sayfa Sayıları: ss.770-775
  • Çanakkale Onsekiz Mart Üniversitesi Adresli: Hayır

Özet

The homogeneity of analytical sample should be checked prior to analysis. Sample processing, which may be source of systematic errors, is the procedure used to make the analytical sample acceptably homogenous with respect to the analyte distribution. For a quick quantify the analyte in the extract without clean-up, vertically cut tomato samples were surface treated with C-14-chlorpyrifos, communited and extracted. Then C-14-chlorpyrifos radioactivity was determined in the replicate analytical portions of different size and uncertainty of sample processing was determined. F test revealed that, the processed samples were well-mixed. The typical sampling constant (K-S), was calculated as 1.24 kg.