螺虫乙酯在番茄上的残留消解动态及传导转化研究
【文章页数】:73 页
【学位级别】:硕士
【部分图文】:
图1?6种分析物标准溶液在不同离子源温度下的色谱图(0.05?mg/kg)??
谱图选择质量数高、丰度高的特征离子,作为??待测物质母离子,并经离子库对比确认,得到螺虫乙酯及其四种代谢物和吡蚜酮的出??峰时间;分子离子进入二级质谱后发生发生断裂或重排等反应,产生不同质荷比(m/z)??的离子碎片,优化去簇电压,并根据不同碰撞能量值条件下的子离子扫描图,选择响....
图2?6种分析物标准溶液在不同离子源温度下的响应值(0.05?mg/kg)??Figure?2?Responses?of?six?analytes?standard?solutions?at?different?ion?source?temperatures?(0.05?mg/kg)??
C?0450?9C?□400?°C?B350eC?B?300?eC??6.00E+06?-?-r?J.??_?I??5.00E+06?_?§工??ifa?il??-yiJj?.?lli&i??S3.00E+06?-?|?j|^|?|?_兰|??2.00E+06?-?||?|?C?....
图3不同流动相下分析物标准溶液响应值(0.05mg/kg)??Figure?3?Response?values?of?analyte?standard?solutions?when?using?different?mobile?phases?(0.05mg/kg)??
标准溶液在不同离子源温度下的响应值(0.05?mg/kg)??Figure?2?Responses?of?six?analytes?standard?solutions?at?different?ion?source?temperatures?(0.05?mg/kg)??3.1.....
图6不同提取溶剂对吡蚜酮的提取效果(添加水平0.05?mg/kg)??Figure?6?Extraction?efTect?of?difl'erent?extraction?solvents?on?pymetrozine?(spiked?at?0.05?mg/kg)??提取方式的选择:选用乙腈作为螺虫乙酯及其代谢物的提取溶剂,根据残留检测??
分析物??图5不同提取溶剂对螺虫乙酯及其代谢物的提取效果(添加水平0.05?mg/kg)??Figure?5?Effects?of?different?extraction?solvents?on?spirotetramat?and?its?metabolites?(spiked....
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