兰州地区大气自由基测量与研究

	兰州地区大气自由基测量与研究; 兰州地区大气自由基测量与研究; 兰州地区大气自由基测量与研究; 兰州地区大气自由基测量与研究; 兰州地区大气自由基测量与研究
项目编号	21407072 ; 21407072 ; 21407072 ; 21407072 ; 21407072
	王国英
摘要	大气是多组分相互作用的复杂混合体，我国大气现阶段表现出强氧化性和低能见度的特点，高浓度超细颗粒物对人体健康，生态系统等产生重大影响。自由基是大气氧化性和PM2.5等超细颗粒物生成的核心驱动力，是大气成分时空演化的关键。因此，研究大气自由基高灵敏度探测，自由基与超细颗粒污染物形成关系，对深入理解光化学烟雾、雾霾问题具有十分重要的意义。本课题以自由基化学及其氧化加合物形成的化学机制为核心，开展大气自由基液质联用高灵敏度探测技术研究，建立自由基反应体系与液质联用系统的耦合技术及关键前体物和加合物的监测方法，软电离多反应监测同时定量多种类型自由基含量，多级质谱解析自由基分子结构；开展兰州地区大气样本外场实测工作，研究自由基浓度和结构类型的时空变化与分布特征及影响因素，进行自由基类型及含量与PM2.5、PM10含量及AQI指数间的关系研究，为探讨自由基驱动雾霾等超细颗粒污染物形成机制提供科学数据。【英文摘要】Theatmospheremadeupofalargenumberofchemicalconstituentsisacomplexsysteminwhichphysicalandchemicalreactionsareconstantlytakingplace.Atthepresentstage,theatmosphereinChinahasdisplayedstrongoxidizingpropertyandpoorvisibilityfeatures.Highconcentrationultrafineparticlesaffectthehumanhealth,ecologicalsystemandsoonseriously.Freeradicalsarethecoredriveroftheatmosphericoxidationcapacityandthegenerationofultrafineparticlese.g.particulatematter2.5(PM2.5).Freeradicalsarealsothekeytothetemporalandspatialvariationofatmosphericchemicalconstituents.Theinvestigationsofthesensitivedetectionoftheatmosphericfreeradicals,theinteractionrelationshipsbetweenfreeradicalsandultrafineparticles,arethereforeveryimportanttounderstandthegenerationmechanismsofphotochemicalsmogandatmospherichaze.Theaimsoftheprojectareatthecoreofchemicalmechanismsoffreeradicalchemistryandfreeradicaladductsformation.Theresearchforthedetectionofatmosphericfreeradicalsbyliquidchromatographytandemmassspectrometrywillbecarriedout.Anovelfreeradicalreactioncombinedwithliquidchromatographyelectrosprayionizationtandemmassspectrometrymethodwillbedevelopedforthedetectionofatmosphericfreeradicals.Themultiplereactionmonitoringmodeswithsoftionizationsourcewillbeusedtodeterminationatmosphericfreeradicals.Thestructuresoftheatmosphericfreeradicalswillbeidentifiedusingtandemmassspectrometry.TheatmosphereinLanzhou,Chinawillbeselectedasanobjectofstudyforthedetectionofatmosphericfreeradicalsinexternalfield.Thetemporalandspatialvariation,distributionalcharacteristicsandinfluencingfactoroftheatmosphericfreeradicals’concentrationsandstructureswillbestudied.Therelationshipsbetweentheatmosphericfreeradicals’concentrationsandstructureswiththePM2.5concentration,withthePM10concentration,andwiththeAirQualityIndex(AQI)willalsobeanalyzed,respectively.Newscientificdataforthegenerationofultrafineparticulatecontaminantse.g.generationofatmospherichazecausedbyatmosphericfreeradicalswillbeinvestigated.; 大气是多组分相互作用的复杂混合体，我国大气现阶段表现出强氧化性和低能见度的特点，高浓度超细颗粒物对人体健康，生态系统等产生重大影响。自由基是大气氧化性和PM2.5等超细颗粒物生成的核心驱动力，是大气成分时空演化的关键。因此，研究大气自由基高灵敏度探测，自由基与超细颗粒污染物形成关系，对深入理解光化学烟雾、雾霾问题具有十分重要的意义。本课题以自由基化学及其氧化加合物形成的化学机制为核心，开展大气自由基液质联用高灵敏度探测技术研究，建立自由基反应体系与液质联用系统的耦合技术及关键前体物和加合物的监测方法，软电离多反应监测同时定量多种类型自由基含量，多级质谱解析自由基分子结构；开展兰州地区大气样本外场实测工作，研究自由基浓度和结构类型的时空变化与分布特征及影响因素，进行自由基类型及含量与PM2.5、PM10含量及AQI指数间的关系研究，为探讨自由基驱动雾霾等超细颗粒污染物形成机制提供科学数据。【英文摘要】Theatmospheremadeupofalargenumberofchemicalconstituentsisacomplexsysteminwhichphysicalandchemicalreactionsareconstantlytakingplace.Atthepresentstage,theatmosphereinChinahasdisplayedstrongoxidizingpropertyandpoorvisibilityfeatures.Highconcentrationultrafineparticlesaffectthehumanhealth,ecologicalsystemandsoonseriously.Freeradicalsarethecoredriveroftheatmosphericoxidationcapacityandthegenerationofultrafineparticlese.g.particulatematter2.5(PM2.5).Freeradicalsarealsothekeytothetemporalandspatialvariationofatmosphericchemicalconstituents.Theinvestigationsofthesensitivedetectionoftheatmosphericfreeradicals,theinteractionrelationshipsbetweenfreeradicalsandultrafineparticles,arethereforeveryimportanttounderstandthegenerationmechanismsofphotochemicalsmogandatmospherichaze.Theaimsoftheprojectareatthecoreofchemicalmechanismsoffreeradicalchemistryandfreeradicaladductsformation.Theresearchforthedetectionofatmosphericfreeradicalsbyliquidchromatographytandemmassspectrometrywillbecarriedout.Anovelfreeradicalreactioncombinedwithliquidchromatographyelectrosprayionizationtandemmassspectrometrymethodwillbedevelopedforthedetectionofatmosphericfreeradicals.Themultiplereactionmonitoringmodeswithsoftionizationsourcewillbeusedtodeterminationatmosphericfreeradicals.Thestructuresoftheatmosphericfreeradicalswillbeidentifiedusingtandemmassspectrometry.TheatmosphereinLanzhou,Chinawillbeselectedasanobjectofstudyforthedetectionofatmosphericfreeradicalsinexternalfield.Thetemporalandspatialvariation,distributionalcharacteristicsandinfluencingfactoroftheatmosphericfreeradicals’concentrationsandstructureswillbestudied.Therelationshipsbetweentheatmosphericfreeradicals’concentrationsandstructureswiththePM2.5concentration,withthePM10concentration,andwiththeAirQualityIndex(AQI)willalsobeanalyzed,respectively.Newscientificdataforthegenerationofultrafineparticulatecontaminantse.g.generationofatmospherichazecausedbyatmosphericfreeradicalswillbeinvestigated.; 大气是多组分相互作用的复杂混合体，我国大气现阶段表现出强氧化性和低能见度的特点，高浓度超细颗粒物对人体健康，生态系统等产生重大影响。自由基是大气氧化性和PM2.5等超细颗粒物生成的核心驱动力，是大气成分时空演化的关键。因此，研究大气自由基高灵敏度探测，自由基与超细颗粒污染物形成关系，对深入理解光化学烟雾、雾霾问题具有十分重要的意义。本课题以自由基化学及其氧化加合物形成的化学机制为核心，开展大气自由基液质联用高灵敏度探测技术研究，建立自由基反应体系与液质联用系统的耦合技术及关键前体物和加合物的监测方法，软电离多反应监测同时定量多种类型自由基含量，多级质谱解析自由基分子结构；开展兰州地区大气样本外场实测工作，研究自由基浓度和结构类型的时空变化与分布特征及影响因素，进行自由基类型及含量与PM2.5、PM10含量及AQI指数间的关系研究，为探讨自由基驱动雾霾等超细颗粒污染物形成机制提供科学数据。【英文摘要】Theatmospheremadeupofalargenumberofchemicalconstituentsisacomplexsysteminwhichphysicalandchemicalreactionsareconstantlytakingplace.Atthepresentstage,theatmosphereinChinahasdisplayedstrongoxidizingpropertyandpoorvisibilityfeatures.Highconcentrationultrafineparticlesaffectthehumanhealth,ecologicalsystemandsoonseriously.Freeradicalsarethecoredriveroftheatmosphericoxidationcapacityandthegenerationofultrafineparticlese.g.particulatematter2.5(PM2.5).Freeradicalsarealsothekeytothetemporalandspatialvariationofatmosphericchemicalconstituents.Theinvestigationsofthesensitivedetectionoftheatmosphericfreeradicals,theinteractionrelationshipsbetweenfreeradicalsandultrafineparticles,arethereforeveryimportanttounderstandthegenerationmechanismsofphotochemicalsmogandatmospherichaze.Theaimsoftheprojectareatthecoreofchemicalmechanismsoffreeradicalchemistryandfreeradicaladductsformation.Theresearchforthedetectionofatmosphericfreeradicalsbyliquidchromatographytandemmassspectrometrywillbecarriedout.Anovelfreeradicalreactioncombinedwithliquidchromatographyelectrosprayionizationtandemmassspectrometrymethodwillbedevelopedforthedetectionofatmosphericfreeradicals.Themultiplereactionmonitoringmodeswithsoftionizationsourcewillbeusedtodeterminationatmosphericfreeradicals.Thestructuresoftheatmosphericfreeradicalswillbeidentifiedusingtandemmassspectrometry.TheatmosphereinLanzhou,Chinawillbeselectedasanobjectofstudyforthedetectionofatmosphericfreeradicalsinexternalfield.Thetemporalandspatialvariation,distributionalcharacteristicsandinfluencingfactoroftheatmosphericfreeradicals’concentrationsandstructureswillbestudied.Therelationshipsbetweentheatmosphericfreeradicals’concentrationsandstructureswiththePM2.5concentration,withthePM10concentration,andwiththeAirQualityIndex(AQI)willalsobeanalyzed,respectively.Newscientificdataforthegenerationofultrafineparticulatecontaminantse.g.generationofatmospherichazecausedbyatmosphericfreeradicalswillbeinvestigated.; 大气是多组分相互作用的复杂混合体，我国大气现阶段表现出强氧化性和低能见度的特点，高浓度超细颗粒物对人体健康，生态系统等产生重大影响。自由基是大气氧化性和PM2.5等超细颗粒物生成的核心驱动力，是大气成分时空演化的关键。因此，研究大气自由基高灵敏度探测，自由基与超细颗粒污染物形成关系，对深入理解光化学烟雾、雾霾问题具有十分重要的意义。本课题以自由基化学及其氧化加合物形成的化学机制为核心，开展大气自由基液质联用高灵敏度探测技术研究，建立自由基反应体系与液质联用系统的耦合技术及关键前体物和加合物的监测方法，软电离多反应监测同时定量多种类型自由基含量，多级质谱解析自由基分子结构；开展兰州地区大气样本外场实测工作，研究自由基浓度和结构类型的时空变化与分布特征及影响因素，进行自由基类型及含量与PM2.5、PM10含量及AQI指数间的关系研究，为探讨自由基驱动雾霾等超细颗粒污染物形成机制提供科学数据。【英文摘要】Theatmospheremadeupofalargenumberofchemicalconstituentsisacomplexsysteminwhichphysicalandchemicalreactionsareconstantlytakingplace.Atthepresentstage,theatmosphereinChinahasdisplayedstrongoxidizingpropertyandpoorvisibilityfeatures.Highconcentrationultrafineparticlesaffectthehumanhealth,ecologicalsystemandsoonseriously.Freeradicalsarethecoredriveroftheatmosphericoxidationcapacityandthegenerationofultrafineparticlese.g.particulatematter2.5(PM2.5).Freeradicalsarealsothekeytothetemporalandspatialvariationofatmosphericchemicalconstituents.Theinvestigationsofthesensitivedetectionoftheatmosphericfreeradicals,theinteractionrelationshipsbetweenfreeradicalsandultrafineparticles,arethereforeveryimportanttounderstandthegenerationmechanismsofphotochemicalsmogandatmospherichaze.Theaimsoftheprojectareatthecoreofchemicalmechanismsoffreeradicalchemistryandfreeradicaladductsformation.Theresearchforthedetectionofatmosphericfreeradicalsbyliquidchromatographytandemmassspectrometrywillbecarriedout.Anovelfreeradicalreactioncombinedwithliquidchromatographyelectrosprayionizationtandemmassspectrometrymethodwillbedevelopedforthedetectionofatmosphericfreeradicals.Themultiplereactionmonitoringmodeswithsoftionizationsourcewillbeusedtodeterminationatmosphericfreeradicals.Thestructuresoftheatmosphericfreeradicalswillbeidentifiedusingtandemmassspectrometry.TheatmosphereinLanzhou,Chinawillbeselectedasanobjectofstudyforthedetectionofatmosphericfreeradicalsinexternalfield.Thetemporalandspatialvariation,distributionalcharacteristicsandinfluencingfactoroftheatmosphericfreeradicals’concentrationsandstructureswillbestudied.Therelationshipsbetweentheatmosphericfreeradicals’concentrationsandstructureswiththePM2.5concentration,withthePM10concentration,andwiththeAirQualityIndex(AQI)willalsobeanalyzed,respectively.Newscientificdataforthegenerationofultrafineparticulatecontaminantse.g.generationofatmospherichazecausedbyatmosphericfreeradicalswillbeinvestigated.; 大气是多组分相互作用的复杂混合体，我国大气现阶段表现出强氧化性和低能见度的特点，高浓度超细颗粒物对人体健康，生态系统等产生重大影响。自由基是大气氧化性和PM2.5等超细颗粒物生成的核心驱动力，是大气成分时空演化的关键。因此，研究大气自由基高灵敏度探测，自由基与超细颗粒污染物形成关系，对深入理解光化学烟雾、雾霾问题具有十分重要的意义。本课题以自由基化学及其氧化加合物形成的化学机制为核心，开展大气自由基液质联用高灵敏度探测技术研究，建立自由基反应体系与液质联用系统的耦合技术及关键前体物和加合物的监测方法，软电离多反应监测同时定量多种类型自由基含量，多级质谱解析自由基分子结构；开展兰州地区大气样本外场实测工作，研究自由基浓度和结构类型的时空变化与分布特征及影响因素，进行自由基类型及含量与PM2.5、PM10含量及AQI指数间的关系研究，为探讨自由基驱动雾霾等超细颗粒污染物形成机制提供科学数据。【英文摘要】Theatmospheremadeupofalargenumberofchemicalconstituentsisacomplexsysteminwhichphysicalandchemicalreactionsareconstantlytakingplace.Atthepresentstage,theatmosphereinChinahasdisplayedstrongoxidizingpropertyandpoorvisibilityfeatures.Highconcentrationultrafineparticlesaffectthehumanhealth,ecologicalsystemandsoonseriously.Freeradicalsarethecoredriveroftheatmosphericoxidationcapacityandthegenerationofultrafineparticlese.g.particulatematter2.5(PM2.5).Freeradicalsarealsothekeytothetemporalandspatialvariationofatmosphericchemicalconstituents.Theinvestigationsofthesensitivedetectionoftheatmosphericfreeradicals,theinteractionrelationshipsbetweenfreeradicalsandultrafineparticles,arethereforeveryimportanttounderstandthegenerationmechanismsofphotochemicalsmogandatmospherichaze.Theaimsoftheprojectareatthecoreofchemicalmechanismsoffreeradicalchemistryandfreeradicaladductsformation.Theresearchforthedetectionofatmosphericfreeradicalsbyliquidchromatographytandemmassspectrometrywillbecarriedout.Anovelfreeradicalreactioncombinedwithliquidchromatographyelectrosprayionizationtandemmassspectrometrymethodwillbedevelopedforthedetectionofatmosphericfreeradicals.Themultiplereactionmonitoringmodeswithsoftionizationsourcewillbeusedtodeterminationatmosphericfreeradicals.Thestructuresoftheatmosphericfreeradicalswillbeidentifiedusingtandemmassspectrometry.TheatmosphereinLanzhou,Chinawillbeselectedasanobjectofstudyforthedetectionofatmosphericfreeradicalsinexternalfield.Thetemporalandspatialvariation,distributionalcharacteristicsandinfluencingfactoroftheatmosphericfreeradicals’concentrationsandstructureswillbestudied.Therelationshipsbetweentheatmosphericfreeradicals’concentrationsandstructureswiththePM2.5concentration,withthePM10concentration,andwiththeAirQualityIndex(AQI)willalsobeanalyzed,respectively.Newscientificdataforthegenerationofultrafineparticulatecontaminantse.g.generationofatmospherichazecausedbyatmosphericfreeradicalswillbeinvestigated.
项目类别	青年科学基金项目 ; 青年科学基金项目 ; 青年科学基金项目 ; 青年科学基金项目 ; 青年科学基金项目
项目来源	国家自然科学基金 ; 国家自然科学基金 ; 国家自然科学基金 ; 国家自然科学基金 ; 国家自然科学基金
	2015-01 ; 2015-01 ; 2015-01 ; 2015-01 ; 2015-01
结束日期	2017-12 ; 2017-12 ; 2017-12 ; 2017-12 ; 2017-12
学科门类	09 - 环境科学 ; 09 - 环境科学 ; 09 - 环境科学 ; 09 - 环境科学 ; 09 - 环境科学 ; 0901 - 环境化学 ; 0901 - 环境化学 ; 0901 - 环境化学 ; 0901 - 环境化学 ; 0901 - 环境化学
主持机构	兰州理工大学 ; 兰州理工大学 ; 兰州理工大学 ; 兰州理工大学 ; 兰州理工大学
项目经费	230000.0 ; 230000.0 ; 230000.0 ; 230000.0 ; 230000.0
国家	CN ; CN ; CN ; CN ; CN
语种	中文 ; 中文 ; 中文 ; 中文 ; 中文
文献类型	项目
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/64751
专题	兰州理工大学
推荐引用方式 GB/T 7714	王国英.兰州地区大气自由基测量与研究, 兰州地区大气自由基测量与研究, 兰州地区大气自由基测量与研究, 兰州地区大气自由基测量与研究, 兰州地区大气自由基测量与研究.2015, 2015, 2015, 2015, 2015.