Determination of carbofuran by flow-injection with chemiluminescent detection.
It was found that carbofuran enhances the chemiluminescence reaction between sodium sulphite and Ce(4+) in sulphuric acid, and this formed the basis of a flow-injection system with chemiluminescence detection for determination of carbofuran. Under optimum conditions, the enhanced chemiluminescence intensity was linear, with the concentration of carbofuran in the range 8 x 10(-8)-1.0 x 10(-5) g[sol ]mL, with a detection limit of 2.84 x 10(-8) g[sol ]mL (3 s[sol ]k). The proposed method was applied to the analysis of carbofuran in cabbage, with satisfactory results.
Xie
Zenghong
Z
Department of Chemistry, Fuzhou University, Fuzhou, Fujian 350002, People's Republic of China.
Ouyang
Xiaoqing
X
Guo
Liangqia
L
Lin
Xucong
X
Chen
Guonan
G
D001937:Brassica / Q000737:chemistry; D002138:Calibration; D002235:Carbofuran / Q000032:analysis* / Q000592:standards; D002563:Cerium; D005506:Food Contamination / Q000032:analysis; D008163:Luminescent Measurements / Q000379:methods* / Q000592:standards; D010575:Pesticides / Q000032:analysis; D013447:Sulfites
D010575:Pesticides; D013447:Sulfites; D002563:Cerium; D002235:Carbofuran; C025026:sodium sulfite