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Determination of tsumacide residues in vegetable samples using a flow‐injection chemiluminescence method
Author(s) -
Liu Haiyan,
Hao Yuhong,
Ren Juanjuan,
He Pingang,
Fang Yuzhi
Publication year - 2007
Publication title -
luminescence
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.428
H-Index - 45
eISSN - 1522-7243
pISSN - 1522-7235
DOI - 10.1002/bio.963
Subject(s) - chemiluminescence , detection limit , chemistry , relative standard deviation , residue (chemistry) , chromatography , rhodamine 6g , analytical chemistry (journal) , rhodamine b , linear range , organic chemistry , photocatalysis , molecule , catalysis
A sensitive, simple and rapid flow‐injection chemiluminescence (FI–CL) method is described to determine tsumacide pesticide residue based on the CL reaction of the alkaline degradation product of tsumacide with acidic KMnO 4 when rhodamine 6G was present. Under the optimum conditions, the relative CL intensity is linear with the concentration of tsumacide in the range of 2.0 × 10 −3 –0.20 mg/L. The detection limit is 6.6 × 10 −4 mg/L (3 σ ) and the relative standard deviation for 2.0 × 10 −2 mg/L tsumacide solution was 2.28% (intra‐day) and 4.85% (inter‐day). The proposed method has been applied to determine the residue of tsumacide in vegetable samples and the recovery test is very satisfactory. Copyright © 2007 John Wiley & Sons, Ltd.