Determination of azinphos-ethyl insecticide by adsorptive stripping voltammetry on the hanging mercury-drop electrode
Küçük Resim Yok
Tarih
2008
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Maik Nauka/Interperiodica/Springer
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
The electrochemical characteristics of azinphos-ethyl (APE) have been determined by means of electrochemical techniques such as cyclic voltammetry (CV) and adsorptive stripping voltammetry (ASV) at a hanging mercury drop electrode (HMDE) over a wide range of pH from 2.0 to 8.0. The cyclic voltammograms demonstrate the adsorption of this compound at the mercury electrode. A systematic study of the various operational parameters that affect the stripping response was carried out by differential pulse voltammetry (DPV). With a preconcentration potential of -0.6 V and a 60 s preconcentration time, the limit of detection was 5.42 x 10(-9) M, and the relative standard deviation (n = 5) was 2.7 % at concentration level of 6.45 x 10(-7) M APE. The degree of interference from diverse ions and some other pesticides on the differential pulse stripping signal for APE was evaluated. Finally, the method was applied to the determination of APM in spiked soil, tap water, and treated wastewater.
Açıklama
Anahtar Kelimeler
Chromatographic Determination, Behavior, Tissue, Methyl
Kaynak
Journal of Analytical Chemistry
WoS Q Değeri
Q4
Scopus Q Değeri
Q4
Cilt
63
Sayı
8
