Determination of parathion residues in rice samples using a flow injection chemiluminescence method.
A sensitive flow injection chemiluminescence method is described for the determination of parathion pesticide, based upon its direct chemiluminescence reaction with luminol and hydrogen peroxide in the presence of non-ionic surfactant polyethylene glycol 400. Under the selected experimental conditions, the concentration of parathion is proportional to the CL intensity in the range 0.02-1.0 mg/L. The detection limit was 0.008 mg/L and the relative standard deviation was 2.8% for 0.2 mg/L parathion solution (n = 11). This method was successfully applied to the determination of parathion residue in rice samples.
Department of Chemistry, School of Chemistry and Materials Science, Shaanxi Normal University, Xi'an 710062, People's Republic of China.
Xiaoyu
X
Liu
Jianxiu
J
Du
Jiuru
J
Lu
D017022:Flow Injection Analysis / Q000379:methods*; D006861:Hydrogen Peroxide / Q000737:chemistry; D006863:Hydrogen-Ion Concentration; D007306:Insecticides / Q000032:analysis* / Q000737:chemistry / Q000302:isolation & purification; D008163:Luminescent Measurements; D012275:Oryza / Q000737:chemistry*; D010278:Parathion / Q000032:analysis* / Q000737:chemistry / Q000302:isolation & purification; D010573:Pesticide Residues / Q000032:analysis* / Q000737:chemistry / Q000302:isolation & purification; D010634:Phenobarbital / Q000737:chemistry; D011092:Polyethylene Glycols / Q000737:chemistry; D012680:Sensitivity and Specificity
D007306:Insecticides; D010573:Pesticide Residues; D011092:Polyethylene Glycols; D010278:Parathion; D006861:Hydrogen Peroxide; D010634:Phenobarbital