摘要
研究并建立了恶唑菌酮(famoxadone)在苹果和土壤中的残留分析方法。样品以甲醇提取,固相萃取(SPE)净化,高效液相色谱(HPLC)测定。恶唑菌酮的最小检测量为4 0×10-9 g,苹果中的最低检出浓度为0 008mg·kg-1,土壤为0 02mg·kg-1。在0 05~5 0mg·kg-1的添加浓度下,土壤中恶唑菌酮的平均添加回收率为81 45% ~91 61%,变异系数为2 93% ~6 52%;苹果中的平均添加回收率为84 06% ~97 93%,变异系数为4 61% ~6 67%。该方法的准确性、精确性以及灵敏度均达到农药残留分析的要求。
SPE-HPLC was used to analyse residue of famoxadone in apples and soil. Residues of famoxadone were extracted from apple and soil with methanol,cleaned up by SPE cartridge,and determined with HPLC equipped by UV detector. The average recoveries and coefficient of variations of the method were 84.06%~97.93%,4.61%~6.67% for apple samples, and 81.45%~91.61%,2.93%~6.52% for soil sample, respectively. The minimum detectable amount of famoxadone was 4.0×10^(-9) g ,and the minimum detectable concentrations were 0.008 mg·kg^(-1) and 0.02 mg·kg^(-1),respectively.These results showed that the method accords with demands of residue analysis of pesticide.
出处
《安徽农业大学学报》
CAS
CSCD
北大核心
2005年第2期221-223,共3页
Journal of Anhui Agricultural University
基金
农业部国外农药登记残留田间试验项目资助。
