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科研机构
生态环境研究中心 [5]
过程工程研究所 [1]
内容类型
学位论文 [6]
发表日期
2018 [6]
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发表日期:2018
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基于高分辨质谱的土壤溶解性有机质化学多样性研究
学位论文
北京: 中国科学院生态环境研究中心, 2018
作者:
李晓明
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浏览/下载:24/0
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提交时间:2020/07/15
土壤溶解性有机质, 化学多样性,微生物多样性, 傅立叶变换离子回旋 共振质谱
decreased WIth IncreasIng Iron ComplexIng Index. PAtterns In Molecular PrOfiles IndicAted Dom In Paddy Soils To Become More RecalcItrAnt At Higher Soil C/n rAtio And Higher Soil Ph. furTherMore, PlAnt-derived polyPh.nols And Pyrogenic Dom Were retaIned Favorably By Iron And The ChemodiversIty Of Dom In Paddy Soil Increased WIth IncreasIng Soil C/n rAtios. These Results Provide Novel InFormAtion regardIng Dom Characteristics At a Molecular Level And Will InForm Better Global MAnagement Of Soil Carbon In Paddy Soil EcosysteMs Global. 2) Through The applicAtion Of Ft-icr-Ms, The ChemodiversIty Of Dom In Soil Subjected To Long-term OrgAnic Carbon And InOrgAnic Fertilizer Amendments Was Established. In Parallel, Bcc Was Assessed. Through This Coupled Approach It Was Established.thAt sustaIned OrgAnic Carbon Amendment Resulted In: SignificAntly (p < 0.05) Increased Total Carbon And Total nItrogen Reservoirs In Soil, Dom PrOfiles Of greAter ChemodiversIty, And Emergence Of RecalcItrAnt Dom Moieties (H/c < 1.5). In Contrast, Carbon And nItrogen Reservoirs In Soil Subjected To sustaIned InOrgAnic Fertilizer applicAtion Were Unaltered, While Soil OrgAnic Carbon ChemodiversIty Was Observed To Shift To Less RecalcItrAnt Dom Moieties (H/c rAtio > 1.5 And O/c rAtios < 0.5). furTherMore, sustaIned OrgAnic Carbon Amendment Shaped Bcc To a eutroPh.c stAte While Long-term Chemical fertilizAtion Directed The Bcc Towards An oligotroPh.c stAte. Higher connectivIty And Network complexIty Were Observed In OrgAnic Carbon Amended Soils. Dom-Bcc Network Analysis, IndicAtIng thAt Soil Microbes Had More Interaction WIth Dom Molecules followIng sustaIned OrgAnic mAtter Input. These Results Highlight The Potential For OrgAnic Carbon Amendments To Not Only Build Soil Carbon sTocks And Increase Their Resilience, But To Also Improve The Functional stAte Of Soil Microbial communIties. Key Words: Dom, ChemodiversIty, Microbial diversIty, Ft-icr Ms
高铝粉煤灰中锂的赋存状态及预脱硅过程浸出规律研究
学位论文
: 中国科学院研究生院, 2018
作者:
胡朋朋
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浏览/下载:148/0
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提交时间:2019/03/29
高铝粉煤灰,锂,赋存状态,元素分布,预脱硅
O-乙酰化与 O-甲基化唾液酸的质谱分析
学位论文
北京: 中国科学院生态环境研究中心, 2018
作者:
张启伟
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浏览/下载:10/0
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提交时间:2019/07/31
唾液酸 乙酰化 甲基化 同分异构体 干血斑 质谱
Sialic Acid
Acetylation
Methylation
Isomer
Dired Blood Spot
Mass Spectrometry
全氟多氟化合物高选择性样品前处理方法研究
学位论文
北京: 中国科学院生态环境研究中心, 2018
作者:
王娟
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浏览/下载:7/0
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提交时间:2019/07/25
全氟/多氟化合物,氟氟亲和作用,亲蛋白性,高效液相色谱质谱联用 Per- And Polyuoroalkyl Substances, Fluorous Affinity, Protein Affinity, High Performance Liquid Chromatography tAndem–mass Spectrometry
功能材料在复杂基质小分子污染物SALDI-TOF MS分析中的应用
学位论文
北京: 中国科学院生态环境研究中心, 2018
作者:
王赛花
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浏览/下载:17/0
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提交时间:2019/07/26
表面辅助激光解吸电离飞行时间质谱,碳量子点,金属有机框架,共价有机框架,纳米金-聚多巴胺-聚偏氟乙烯膜 Surface Assisted Laser Desorption/ionization Time-of-flight Mass Spectrometry, Carbon Dots, Metal Organic Frameworks, Covalent Organic Frame
水体中半挥发性有机污染物的非目标筛查方法及应用
学位论文
北京: 中国科学院生态环境研究中心, 2018
作者:
徐雄
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浏览/下载:2/0
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提交时间:2019/08/01
半挥发性有机污染物,全二维气相色谱质谱,非目标分析,消毒副产物 Semi-volatile Organic Compounds, Comprehensive Two Dimensional Gas Chromatography-quadrupole Mass Spectrometry, Non-target Analysis, Disinfection By-products.
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