[Determination of 14 aniline and benzidine compounds in soil by gas chromatography-mass spectrometry]. [PDF]
Se Pu, 2023 针对土壤基质复杂及部分苯胺类化合物提取效率低的特点,基于气相色谱-质谱建立了土壤中14种苯胺类和联苯胺类化合物的分析方法。在采集后的土壤样品中加入5%亚硫酸钠水溶液进行密封,以防止目标物氧化变质,并于4 ℃以下冷藏保存,保存期限可达7天。实验比较了加速溶剂提取和振荡分散提取两种方式的提取效率,最终采用提取时加入碱性水溶液和乙酸乙酯-二氯甲烷(1∶4, v/v)的方法,在土壤-水相-有机相共存的条件下进行振荡分散萃取。萃取完成后经离心弃去土壤固相,将水相和有机相转移至分液漏斗中,并分离出有机相 ...
Wu L +5 more
europepmc +2 more sources
[Determination of organophosphate diesters in facility vegetable soils using ultra-high performance liquid chromatography-electrostatic field orbitrap high resolution mass spectrometry]. [PDF]
Se Pu, 2023 有机磷酸二酯(Di-OPEs)被认为是有机磷酸三酯的生物或非生物降解产物。该研究基于超高效液相色谱-静电场轨道离子阱高分辨质谱(UHPLC-Orbitrap HRMS)建立了设施菜地土壤中磷酸二(2-氯)乙酯(BCEP)、磷酸二(1,3-二氯异丙基)酯(BDCP)、磷酸二正丁酯(DnBP)、磷酸二苯酯(DPhP)和磷酸二(2-乙基己基)酯(DEHP)5种Di-OPEs的定性定量分析方法。首先,土壤样品以甲醇为提取溶剂,超声提取,选择Oasis WAX固相萃取柱进行净化,用8 mL含5% (v/v ...
Liu M +7 more
europepmc +2 more sources
Fungal Diversity and Its Response to Environmental Factors During Decay Process of Salix Psammophila Sand Barriers [PDF]
, 2023 [Objective] The effects of Salix psammophila sand barrier decay on the composition and diversity of fungal communities were analyzed in order to provide a theoretical basis for further research on the ecological function of fungal communities in desert ...
A Latengtaogesu +3 more
core +1 more source
Spatial Distribution Characteristics of Soil Water and Salt in Newly Cultivated Farmland Under Gully Control in Loess Hilly Region [PDF]
, 2023 [Objective] Part of the newly cultivated farmland formed by the “Gully Control and Land Reclamation” project is facing the risk of soil salinization in the loess hilly region.
Jiao Feng +3 more
core +1 more source
Comparative Study on Soil Infiltration Characteristics of Different Land Use Types in Horqin Sandy Land [PDF]
, 2022 [Objective] The differences in water infiltration characteristics between different land use types in Horqin sandy land were determined in order to provide a scientific reference for the study of water and material transport in the vadose zone in arid ...
Ala Musa +3 more
core +1 more source
Effects of Biochar Additions on Moisture Content and Depletion of Loessial Soil [PDF]
, 2023 [Objective] The influence of biochar additions on water storage and water retention capacity of loessial soil during the rainy season was clarified in order to provide basic theoretical support for the scientific use of biochar and to improve soil on the
Li Yuanyuan +4 more
core +1 more source
Phosphorus adsorption and desorption characteristics and its response to soil properties of black soil under long-term different fertilization [PDF]
, 2019 editorial reviewedObjective: Fertilizer is generally added to agricultural soil to meet the needs of crop production, but long-term over fertilization changes soil phosphorus (P) pool and soil properties.
Gao, HongJun +7 more
core +1 more source
Natural Vegetation Succession Characteristics and Influencing Factors for Reclamation Area of Tianjin City [PDF]
, 2022 [Objective] The natural vegetation succession characteristics and influencing factors for a reclamation area in Tianjin City were studied in order to provide a scientific basis for ecological restoration and reconstruction of the reclamation area ...
Gao Yue, Li Hongyuan, Luo Li
core +1 more source
生态环境与保护, 2020 我国在近些年发生了很多的公众事件,其中包括开展了一系列场地污染的相关工作,同时又颁布了《土壤污染防治法》,以及化工园区爆炸或者是搬迁等,而这些都增加了对工业污染场地进行修复的市场需求。本文提出了“场地修复+”模式,也就是说将场地修复与各种性质的工作结合到一起的模式,同时对我国土壤污染治理的相关方给出了相关的建议。我们建议中国可以最大限度地发挥有关方在土壤污染治理中的作用,并给出了建议。
玉奇 胡
semanticscholar +1 more source
Effect of Soil Conditioner Interface Modification on Migration Characteristics of Saline-Alkali Ions in Irrigation Area of Yellow River [PDF]
, 2023 [Objective] Through the treatment of hydrophilic and hydrophobic by the conditioner, the influence of different interface characteristics of the conditioner on the soil water and salt transport law was explored, and the improvement mechanism of fly ash ...
Chen Xiangyu +5 more
core +1 more source