n-Alkanes相关论文
中等挥发性有机物（IVOCs）是二次有机气溶胶（SOA）的重要前体物。高效、精确地观测大气中IVOCs的浓度水平和组成分布特征,有助于深入了解......
The Impact of Climatic and Environmental Factors on n-Alkanes Indices in Southwestern Tibetan Platea
n-Alkanes are widely used in paleoenvironmental reconstructions.However,our understanding of changes in the distribution......
n-Alkanes and polycyclic aromatic hydrocarbons (PAHs) bound to atmospheric particulate matter (PM1) were investigated in......
Use of the N-alkanes to Estimate Intake, Apparent Digestibility and Diet Composition in Sheep Grazin
该文从挂篮荷载计算、施工流程、支座及临时固结施工、挂篮安装及试验、合拢段施工、模板制作安装、钢筋安装、混凝土的浇筑及养生......
Molecular stable carbon isotope technique was employed to study well-sourced crude oils collected from a single drilling......
The aliphatic hydrocarbon distributions of terrestrial plants around an alpine lake: a pilot study f
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7......
Terrestrial organic matter(TOM) is an important component of marine sedimentary OM, and revealing the origins and transp......
本文应用GC/MS、GC/IRMS和EA/IRMS等方法对6种不同产地原油的特征比值,全油和正构烷烃组分的碳稳定同位素组成进行分析,研究不同产......
Lipid Distribution in Marine Sediments from the Northern South China Sea and Association with Gas Hy
The distributions of lipids in surface and subsurface sediments from the northern South China Sea were determined. The n......
在青藏高原南部空姆错钻取了一根浅湖芯,对其中时间跨度约为50年的剖面按7年间隔对其中陆源正构烷烃(C_(25),C_(27),C_(29),C_(31)......
We present n-alkane distributions in the soil samples along a transect from Lhasa on the Tibetan Plateau to Bharatpur in......
The adsorption equilibria of n-heptane, n-octane and n-nonane on silicalite and ZSM-5 have beenmeasured in the temperatu......
Effects of humic acid on phytodegradation of petroleum hydrocarbons in soil simultaneously contamina
The use of humic acid (HA) to enhance the efficiency of phytodegradation of petroleum hydrocarbons in soil contaminated ......
Use of the N-alkanes to Estimate Intake, Apparent Digestibility and Diet Composition in Sheep Grazin
The application of n-alkane as markers to estimate herbage intake, apparent digestibility and species composition of die......
The reports that relate to the biomarkers fate and characteristics of the modern soil in the karst area are very lacking......
Particulate samples were collected from the Changjiang river system during a flood period, in May 1997, and POC, stable ......
Characterization of aliphatic hydrocarbons in deep subsurface soils near the outskirts of Beijing, C
Thirty-nine deep subsurface soils( 150-180 Gm depth) near the outskirts of Beijing were investagated. The concentrations......
This paper reports different concentration patterns of n-alkanes distribution in the sediments from the Chukchi Sea, the......
Environmental records of snow pits in Yuzhufeng Glacier and Xiao Dongkemadi Glacier in the Tibetan P
The contents and distribution characteristics of ions,n-alkanes,and polycyclic aromatic hydrocarbons in snow pits on the......
Distributions and sources of n-alkanes in PM2.5 at urban,industrial and coastal sites in Tianjin,Chi
Aliphatic hydrocarbons (n-alkanes) associated with fine particulate matter were determined in the ambient air of urban,i......
Lipid Distribution in Marine Sediments from the Northern South China Sea and Association with Gas Hy
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利用原油成熟度参数及地球化学特征,对淀南地区沙河街组三段中亚段油源进行对比,分析烃源岩特征参数,并分析荧光薄片及三维定量荧......
为了探究重金属—砷污染对植物生长及根系分泌正构烷烃的影响,以香蒲(Typha angustifolia L.)作为试验材料,通过室内土培模拟试验......
以松辽盆地南部上白垩统的烃源岩及原油为研究对象，对烃源岩抽提物和原油中正构烷烃的单体氢同位素组成进行了测定。生物标志化合物......
用 Andersen六段分级大流量采样器 (粒径为 : 10～ 7.2 μ m, 7.2～ 3.0 μ m, 3.0～ 1.5 μ m, 1.5～ 0.95 μ m, 0.95～ 0.49 μ m, ≤ 0.4......
通过对轮南14井正构烷烃和类异戊二烯烃的单体碳同位素分析,证实该井奥陶系和石炭系油藏具有相同或相似的油源,而三叠系油藏与奥陶......
通过分析南黄海中部501个站位表层沉积物通沉积物有机质、粒度及常量元素特征，了解有机质分布特征及影响因素，并进一步对其中64个站......
研究了利用尿素络合技术来测定脱硫之后的天然气凝析油中的正构烷烃含量，对络合过程中的影响因素如尿素用量、反应温度、反应时间及......
为从6种不同采集期的艾叶中提取正构烷烃，并比较其成分和含量，寻找艾叶的最佳采收期，采用梯度溶剂萃取法提取了艾叶正构烷烃，用气相色......
对巢湖湖心沉积物柱样样品的正构烷烃和有机碳进行了分析.利用正构烷烃碳数分布类型、L/H、OEP指标和有机碳数据, 对该区近110年来......
选取渤海3个不同区块不同平台的原油样品，进行室内蒸发风化模拟实验。采用气相色谱法和气相色谱-质谱联用法，分析了在不同风化程度（最......
对察尔汗盐湖ISL1A钻孔沉积物样品进行了有机分子地球化学分析, 检测出了丰富的类脂物, 包括正构烷烃、一元正脂肪酸、一元正脂肪......
在对滇池湖泊沉积物有机质总体特征分析的基础上，对沉积物中可溶性有机质的组成进行了定量测定，并揭示了其剖面变化特征。研究结果表......
为初步探讨粒径大小对污染物迁移循环机制的影响，分析了广东省海陵湾水体中的悬浮颗粒与表层沉积物中不同粒径颗粒的质量分布特征和......
利用常规14C、加速器（AMS）方法对柴达木盆地察尔汗湖一典型古湖相沉积剖面系统测年,并对测年结果进行不同组分和不同实验室对比,确定......
Stable Carbon Isotope and Long-Chain Alkane Compositions of the Major Plants and Sediment Organic Ma
Elemental(TOC,TN,C/N)and stable carbon isotopic(δ^13C)compositions and long-chain alkane(n C16-38)concentrations were m......
用实验室自配的标准正构烷烃样品分别经硅胶或氧化铝柱层析后发现,等量溶剂洗脱的情况下硅胶对长链正构烷烃无吸附而氧化铝具有一......
近年来,国内外学者对利用饱和链烷烃法测定放牧家畜采食量和消化率进行了大量研究。与其它方法相比,饱和链烷烃法具有较多优点。论......
对位于青藏高原北部柴达木盆地内的克鲁克湖钻孔沉积物中的正构烷烃进行了详细定量分析。根据正构烷烃Paq指数和叶蜡烷烃平均链长（A......
塔里木盆地塔中地区原油性质的多样性和复杂性十分罕见;分析表明,成熟作用和源岩相很可能是原油多样性的次要因素,主要影响因素可......
[目的]研究广州市及其周边城市中小型水库和湖泊正构烷烃（n-alkanes）的污染情况。[方法]n-alkanes样品采自广州市及其周边14座中小型......
在石油烃微生物降解的最佳条件下,利用色谱-质谱联用技术分析测定了石油烃中正构烷烃的降解规律.结果表明,正构烷烃的降解最为明显......
利用气质联用仪测定了中国6种稻草及其明火和闷火燃烧烟尘中正构烷烃的含量.结果表明,稻草中正构烷烃的平均含量为73.0μg/g.碳数......
以小球藻（Chlorela sp．）和三角褐指藻（Phaeodactylum tricornutum）为研究对象，比较了其合成有机物中长链烷烃和脂肪酸的组成和丰度。结果......
为阐释长江口颗粒态、溶解态正构烷烃的时空分布特征,并初步探讨其迁移循环机制.2001年7月在长江口分表、底层采集溶解态与颗粒态......
采用GC-TC-IRMS技术,测定辽河坳陷西部凹陷和吐哈盆地台北凹陷的陆相烃源岩抽提物中正构烷烃单体的氢同位素组成.结果表明,陆相来......
选取原油中含量普遍较高的5种链状正构烷烃与不同比例的CO2组成油-气体系。通过体系在不同温度下的恒质膨胀实验,研究CO2在5种链状......
报道了长江口及邻近海域现代沉积物中正构烷烃的浓度及分布特征，通过因子分析法对正构烷烃来源进行了探讨．结果表明，调查站位正构烷烃......
针对西安灞河流域土壤污染日益严重等问题,利用气相色谱-质谱法对西安灞河河流主干道表层土壤样品中的正构烷烃进行测定,并分别对......
