Determination of various fungicides in water by LC-DAD analysis


Oezhan G. , Alpertunga B.

FRESENIUS ENVIRONMENTAL BULLETIN, cilt.16, sa.8, ss.880-886, 2007 (SCI İndekslerine Giren Dergi) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 16 Konu: 8
  • Basım Tarihi: 2007
  • Dergi Adı: FRESENIUS ENVIRONMENTAL BULLETIN
  • Sayfa Sayıları: ss.880-886

Özet

Benomyl as carbendazim (MBC), chlorothalonil, folpet, quinomethionate, and tetradifon are the most widely used fungicides in Trakya area (Turkey). This study presents a simple and rapid method for their analysis in surface water. They are separated on a 250x4.6 mm Luna C-18 column (0.8 ml min(-1) acetonitrile-water with 0.6% ammonia by gradient program) and detected using an UV-diode array detector. The water samples were pre-concentrated by solid-phase extraction with a C18 cartridge. Recovery rates of these compounds were found between 64 and 97% in water samples fortified at three different concentration levels. The inter- and intra-day relative standard deviations were in the range of 0.001-9.11%. The method's and instrumental detection limits ranged between 5-25 ng L-1 and 5-38 pg/injection, respectively. Results showed that the method developed can be used to detect pesticides in concentrations below the maximum residue limits (MRL) established by the European Union legislation.