农药学学报2012，Vol.14Issue(1)：67-73,7.DOI:10.3969/j.issn.1008-7303.2012.01.10
嘧菌酯在人参和西洋参中的残留监测及其膳食风险评估
Determination of azoxystrobin residue in Panax ginseng and Panax quinquefolium and dietary intake risk assessment
摘要
Abstract
A method for the determination of azoxystrobin residues in Panax ginseng and Panax quinquefolium was described. The residues were extracted with acetonitrile-water [V(acetonitrile): V( water) =7:1 ] assisted by ultrasonic, cleaned up with florisil-neutral alumina-activated charcoal (5: 3:0.15,m:m:m) mixed column and dichloromethane by means of liquid-liquid partition. Quantitative analysis was performed with gas chromatography equipped with ECD (electronic capture detector). The fortified recoveries and relative standard deviation (RSD) were 82.1% -97. 8% and 1.6%-6.2% in Panax ginseng,90.9%-92.0% and 1.6%-3.1% in Panax quinquefolium ,at three spiked levels(1, 0. 5 and 0. 01 mg/kg). The limit of detection(S/N = 3) was 0. 06 ng and the limit of quantification (LOQ) of the detection method was 0. 01 mg/kg. The method was applied to monitor the residue status of azoxystrobin in some representative Panax ginseng and Panax quinquefolium planting areasand make risk assessment in 2010. The result of the study showed that the maximum residue in the sample was 0. 1 mg/kg. By calculating, risk quotient (RQ) was very low and the residue could be declined to the safe level.关键词
嘧菌酯/人参/西洋参/农药残留/风险评估Key words
azoxystrobin/Panax ginseng/Panax quinquefolium/pesticide residue/risk assessment分类
化学化工引用本文复制引用
吴加伦,王怀昌,武秀停,赵静,杨娜娜..嘧菌酯在人参和西洋参中的残留监测及其膳食风险评估[J].农药学学报,2012,14(1):67-73,7.基金项目
国家药典委员会国家标准提高研究课题. （）
