期刊论文

Residual Analysis of Fluopicolide and Pyraclostrobin in Grape and Soil

中文

农药

1006-0413

2019

58

2

112-114,124

10.16820/j.cnki.1006-0413.2019.02.010

本校为第一机构

[目的]建立高效液相色谱法同时检测葡萄、土壤中氟吡菌胺和吡唑醚菌酯残留的方法。[方法葡萄和土壤样品均用乙腈提取,提取液用PSA及C_(18)吸附剂分散固相萃取净化,高效液相色谱检测,外标法定量。[结果]方法的线性范围为0.05~5.00 mg/L,氟吡菌胺相关系数为1.0000,吡唑醚菌酯相关系数为0.9999;在0.05、0.50、2.00 mg/kg 3个添加水平下,葡萄中氟吡菌胺和吡唑醚菌酯的平均回收率分别为86.7%~97.8%和90.6%~95.6%,相对标准偏差分别为2.55%~8.49%和2.14%~7.80%,土壤中氟吡菌胺和吡唑醚菌酯的平均回收率分别为79.1%~93.6%和83.4%~98.9%,相对标准偏差分别为5.29%~6.78%、1.69%~7.34%;在上述检测条件下,氟...

[Aims] A high performance liquid chromatography(HPLC) method for the simultaneous determination of fluopicolide and pyraclostrobin residues in grapes and soil was established. [Methods] Grape and soil samples were extracted with acetonitrile, and the extracts were purified by solid phase extraction with PSA and C18 adsorbents,detectedbyHPLCandquantified byexternalstandard method. [Results]The linearrange ofthe method was0.05-5.00 mg/L,the correlation coefficient of fluopicolide was 1.0000, the correlation coefficient of pyraclostrobin was 0.9999, and the average recoveries of fluopicolide and ...