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.
Liu
Xiaoyu
X
Department of Chemistry, School of Chemistry and Materials Science, Shaanxi Normal University, Xi'an 710062, People's Republic of China.
Du
Jianxiu
J
Lu
Jiuru
J
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