A sensitive voltammetric method for the determination of diazinon insecticide
JOURNAL OF ANALYTICAL CHEMISTRY, cilt.58, sa.6, ss.569-572, 2003 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 58 Sayı: 6
- Basım Tarihi: 2003
- Doi Numarası: 10.1023/a:1024120320359
- Dergi Adı: JOURNAL OF ANALYTICAL CHEMISTRY
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Sayfa Sayıları: ss.569-572
- İnönü Üniversitesi Adresli: Evet
Özet
A sensitive voltammetric method is developed for the determination of diazinon, an organophosphorus pesticide, using a Nafion(R)-coated glassy carbon electrode as an enrichment film. The analysis of diazinon in aqueous solutions using sensitive instrumental methods has gained importance. Investigation of the electrochemical behavior of diazinon on a Nafion(R)-coated glassy carbon electrode reveals the presence of a specific oxidation peak of analytical significance. The experimental parameters, such as pH, film thickness, pre-concentration potential, preconcentration time, and square-wave voltammetric parameters were optimized. Using this method, a linear calibration curve for diazinon was obtained up to 5 muM range in pH 1 citrate buffer solution with a detection limit (SIN = 3) of 75 nM.