Capillary gas chromatographic determination of dimethachlon residues in fresh tobacco leaves and cut-tobacco.
Simple procedures for extraction and chromatographic determination of dimethachlon residues in fresh tobacco leaves and cut-tobacco are described. The determination was carried out by capillary gas chromatography (GC) with electron capture detection (ECD) and confirmed by GC-MS. The mean recoveries and relative standard deviation (RSD) were 93.2%~112.9% and 3.5%~6.7%, respectively at levels ranging from 0.01 to 0.1 mg/kg. The limit of determination was 0.001 mg/kg. Tobacco samples in routine check were successfully analyzed using the proposed method.
Liu
Hong-cheng
HC
Supervision and Testing Center for Farm Product Quality, Ministry of Agriculture (Kunming), Yunnan Academy of Agriculture Science, Kunming 650223, China.
Li
Qi-wan
QW
Tang
Li-bin
LB
D002722:Chlorobenzenes / Q000032:analysis / Q000302:isolation & purification*; D002849:Chromatography, Gas / Q000379:methods; D018515:Plant Leaves / Q000737:chemistry; D012680:Sensitivity and Specificity; D013388:Succinimides / Q000032:analysis / Q000302:isolation & purification*; D014026:Nicotiana / Q000737:chemistry*
D002722:Chlorobenzenes; D013388:Succinimides; C488805:dimethachlon