华南农业大学学报Issue(3)：69-73,5.
高效液相色谱-串联质谱法研究吡唑醚菌酯在人参根、茎、叶和土壤中的残留动态及最终残留量
Determination of residual dynamics and final residues of pyraclostrobin in the ginseng root, stem, leaf and soil by HPLC-MS/MS
摘要
Abstract
[Objective]To identify the residual dynamics and final residues of pyraclostrobin 250 g · L-1 EC in the ginseng root , stem, leaf and soil after spraying during the ginseng growth period .[Method]The samples were extracted with acetone , cleaned up with primary secondary amine ( PSA) solid phase extraction cartridge , and determined by high performance liquid chromatography coupled with electros-pray mass spectrometry ( HPLC-MS/MS) .[Result and conclusion]The half lives of pyraclostrobin were from 6.35 to 8.75 d in the ginseng root, stem, leaf and soil with a spraying dosage of 666.67 g· hm -2 . Final residues of pyraclostrobin in the ginseng root , stem, leaf and soil were below 0.020 6 mg· kg -1 over 60 d at a spraying dosage ranging from 333.33 to 666.67 g· hm-2 .It is recommended that the pre-harvest interval of pyraclostrobin 250 g· L-1 EC should be set 35 d and sprayed one time at the dosage of no more than 666.67 g· hm-2 .关键词
人参/吡唑醚菌酯/残留动态/最终残留量/高效液相色谱-串联质谱法Key words
ginseng/pyraclostrobin/residual dynamics/final residue/HPLC-MS/MS分类
农业科技引用本文复制引用
王燕,王春伟,高洁,许允成,崔丽丽..高效液相色谱-串联质谱法研究吡唑醚菌酯在人参根、茎、叶和土壤中的残留动态及最终残留量[J].华南农业大学学报,2014,(3):69-73,5.基金项目
吉林省世行贷款农产品质量安全项目（2011-Z24）；吉林省人参产业发展专项资金项目 （）
