Differential pulse adsorptive stripping voltammetric determination of simeton in its formulations and vegetables.
A sensitive adsorptive stripping voltammetric method for the determination of simeton with universal buffer solution has been described. The method was based on the adsorption accumulation of simeton at a hanging mercury drop electrode. The overall reduction process is under controlled diffusion. The adsorptive peak was observed at -0.8 V vs SCE in acidic solution 2<pH<6. The peak response was characterized with respect to pH, accumulation potential, time, and scan rate. The calibration plot was found to be linear from 1.13×10(-5) to 3.5×10(-8) M with a limit of detection of 2.0×10(-8) M. Finally, the method has been applied for the determination of simeton in its formulations and vegetable samples.
Sreedhar
N Y
NY
Department of Chemistry, S.V. University, Tirupati, 517502, Andhra Pradesh, India. sreedhar_ny@rediffmail.com
Nayak
M Sankara
MS
Shashi Kumar
K N
KN
Prasad
K Srinivasa
KS
Prasad
P Reddy
PR
D055664:Electrochemical Techniques / Q000379:methods*; D004784:Environmental Monitoring; D006540:Herbicides / Q000032:analysis* / Q000737:chemistry; D010573:Pesticide Residues / Q000032:analysis / Q000737:chemistry; D012989:Soil Pollutants / Q000032:analysis* / Q000737:chemistry; D014227:Triazines / Q000032:analysis* / Q000737:chemistry; D014675:Vegetables / Q000737:chemistry*
D006540:Herbicides; D010573:Pesticide Residues; D012989:Soil Pollutants; D014227:Triazines; C555116:2-methoxy-4-ethylamino-6-ethylamino-1,3,5-triazine