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《LC-MS∕MS法研究甲磺隆和氯磺隆在不同条件土壤中的残留行为.pdf》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、农业环境科学学报2010,29(5):887-894JournalofAgro—EnvironmentScienceLC—MS/MS法研究甲磺隆和氯磺隆在不同条件土壤中的残留行为沈燕1,刘贤进1,王冬兰3,马尧瑶2,孙星2,张霄3,余向阳1,夏锦瑜3(1.农业部食品安全监控重点开放实验室,江苏省农业科学院,南京210014;2.江苏省食品质量安全重点实验室,江苏省农业科学院,南京210014;3.省部共建国家重点实验室培育基地,江苏省农业科学院,南京210014)摘要:在建立液相色谱三重串联四极杆质谱(LC—Ms,Ms)检测技术的
2、基础上,采用PVC材料的圆柱形盆钵栽培方法,研究了不同土壤环境条件下甲磺隆和氯磺隆的残留特性。结果表明,甲磺隆和氯磺隆在水稻根际和非根际土壤中的残留量均呈不断下降趋势。处理后15d,根际和非根际土壤中两种农药残留量分别下降了44.7%和41.5%(甲磺隆)及38.7%和40.1%(氯磺隆),根际和非根际的残留差异不显著(踟.05);处理后31d,残留量分别下降了77.7%和64.8%(甲磺隆)及62.7%和50.1%(氯磺隆)。差异达极显著水平(P3、O%和79.4%(氯磺隆),残留差异达极显著水平(P4、利于农药残留在土壤环境中的降解。关键词:甲磺隆;氯磺隆;残留;液质联用中图分类号:X592文献标志码:A文章编号:1672—2043(2010)05-0887-08ResidueBehaviorsofMetsulfuron-methyIandChlorsulfuronUnderDifferentSoilEnvironmentbyLC—IⅥS/MSSHENYahl,UUXian-jinl。WANGDong-lan3,MAYao-ya02,SUNXin92,ZHANGXia03,YUXiang-yan91,XIAJin-yu3(1.K5、eyLaboratoryofFoodSafetyMonitoringandManagementofMinistryofA萌culture,JiangsuAcademyofAgTiculturalScience,Nanjing210014,China;2.StateKeyLaboratoryofCuhureofMinistryofScienceandtechnologyandJiangsuProvince,Nanjing210014,China;3.KeyLaboratoryofFoodSafetyResearchandInspec6、tionofJiangsuProvince,JiangsuAcademyofA画culturalScience,Nanjing210014,China)Abstract:Basedontheliquidchromatography-tandemtriplequadrupolemassspectrometric(I£一MS/MS)methoddevelopedforthedeter—minationofmetsulfuroll—methylandchlorsulfuron.theresiduebehaviorsofbot}Iherb7、icidesunderdifferentsoilenvironmentwerethenstud-ied.Theresultsindicatedthatresiduesofmetsulfuion—methylandchlomulfurnninrhizosphereandnon—rhizospherepaddysoildecreasedwithtimeprolonged.Residuesoftwoherbicidesinrhizosphereandnon-rhizospheresoildecreasedby44.7%,41.5%(me8、tsulfuron-methyl)and38.7%,40.1%(chlomulfuron)respectivelyinthe15“dayoftreatment,decreasedby77.7%,64.8%(metsulfuron—methyl)an
3、O%和79.4%(氯磺隆),残留差异达极显著水平(P4、利于农药残留在土壤环境中的降解。关键词:甲磺隆;氯磺隆;残留;液质联用中图分类号:X592文献标志码:A文章编号:1672—2043(2010)05-0887-08ResidueBehaviorsofMetsulfuron-methyIandChlorsulfuronUnderDifferentSoilEnvironmentbyLC—IⅥS/MSSHENYahl,UUXian-jinl。WANGDong-lan3,MAYao-ya02,SUNXin92,ZHANGXia03,YUXiang-yan91,XIAJin-yu3(1.K5、eyLaboratoryofFoodSafetyMonitoringandManagementofMinistryofA萌culture,JiangsuAcademyofAgTiculturalScience,Nanjing210014,China;2.StateKeyLaboratoryofCuhureofMinistryofScienceandtechnologyandJiangsuProvince,Nanjing210014,China;3.KeyLaboratoryofFoodSafetyResearchandInspec6、tionofJiangsuProvince,JiangsuAcademyofA画culturalScience,Nanjing210014,China)Abstract:Basedontheliquidchromatography-tandemtriplequadrupolemassspectrometric(I£一MS/MS)methoddevelopedforthedeter—minationofmetsulfuroll—methylandchlorsulfuron.theresiduebehaviorsofbot}Iherb7、icidesunderdifferentsoilenvironmentwerethenstud-ied.Theresultsindicatedthatresiduesofmetsulfuion—methylandchlomulfurnninrhizosphereandnon—rhizospherepaddysoildecreasedwithtimeprolonged.Residuesoftwoherbicidesinrhizosphereandnon-rhizospheresoildecreasedby44.7%,41.5%(me8、tsulfuron-methyl)and38.7%,40.1%(chlomulfuron)respectivelyinthe15“dayoftreatment,decreasedby77.7%,64.8%(metsulfuron—methyl)an
4、利于农药残留在土壤环境中的降解。关键词:甲磺隆;氯磺隆;残留;液质联用中图分类号:X592文献标志码:A文章编号:1672—2043(2010)05-0887-08ResidueBehaviorsofMetsulfuron-methyIandChlorsulfuronUnderDifferentSoilEnvironmentbyLC—IⅥS/MSSHENYahl,UUXian-jinl。WANGDong-lan3,MAYao-ya02,SUNXin92,ZHANGXia03,YUXiang-yan91,XIAJin-yu3(1.K
5、eyLaboratoryofFoodSafetyMonitoringandManagementofMinistryofA萌culture,JiangsuAcademyofAgTiculturalScience,Nanjing210014,China;2.StateKeyLaboratoryofCuhureofMinistryofScienceandtechnologyandJiangsuProvince,Nanjing210014,China;3.KeyLaboratoryofFoodSafetyResearchandInspec
6、tionofJiangsuProvince,JiangsuAcademyofA画culturalScience,Nanjing210014,China)Abstract:Basedontheliquidchromatography-tandemtriplequadrupolemassspectrometric(I£一MS/MS)methoddevelopedforthedeter—minationofmetsulfuroll—methylandchlorsulfuron.theresiduebehaviorsofbot}Iherb
7、icidesunderdifferentsoilenvironmentwerethenstud-ied.Theresultsindicatedthatresiduesofmetsulfuion—methylandchlomulfurnninrhizosphereandnon—rhizospherepaddysoildecreasedwithtimeprolonged.Residuesoftwoherbicidesinrhizosphereandnon-rhizospheresoildecreasedby44.7%,41.5%(me
8、tsulfuron-methyl)and38.7%,40.1%(chlomulfuron)respectivelyinthe15“dayoftreatment,decreasedby77.7%,64.8%(metsulfuron—methyl)an
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