碳同位素,carbon isotope
1)carbon isotope碳同位素
1.Application of Carbon isotope in Revealing Environment Changes;稳定性碳同位素在揭示环境变化中的应用
2.Analysis of the source and the composition of PAHs carbon isotope in atmospheric particles of Urumchi City;乌鲁木齐空气颗粒物中PAHs碳同位素组成及来源解析
3.Application of coal bed methane stable carbon isotope in exploration of coal bed methane field;稳定碳同位素δ~(13)C_1在煤层气田勘探中的应用
英文短句/例句

1.COMPOSITIONAL CHARACTERISTICS OF OXYGEN AND CARBON ISOTOPES IN DEVONIAN CARBONATE FORMATIONS IN SOUTHERN HUNAN PROVINCE湘南泥盆系碳酸盐岩中氧、碳同位素组成特点
2.Characteristics of Proterozoic Carbonate Rocks in Jixian by Means of the Oxygen and Carbon Isotope Composition从氧、碳同位素组成看蓟县元古宙碳酸盐岩特征
3.RMF+SLAP Approach Studies the Properties of Carbon Isotopes;RMF+SLAP方法对碳同位素链性质的研究
4.Historical eutrophication in Wuli Bay of Taihu Lake, China based on carbon isoto pe record.太湖五里湖富营养化的碳同位素记录
5.Provenance difference in stable carbon isotope discrimination of Schima superba木荷稳定碳同位素分辨率的种源差异
6.The Spatial Change Character of δ~(13)C of Total Organic Matter and δ~(13)C, δD of Long-chain N-alkanes of the Surface Soils Across East China and Their Paleoenvironmental Significance;中国东部表土总有机质碳同位素和正构烷烃碳、氢同位素空间变化特征及其古环境意义
7.Organic Carbon Content and Carbon Isotope Composition of Soil from Typical Terrestrial Ecosystem of Guizhou Province;贵州典型陆地生态系统土壤中有机碳含量及碳同位素组成
8.Net CO2 exchange and carbon isotope flux in Acacia mangium plantation马占相思人工林净二氧化碳交换和碳同位素通量
9.Cave Dripping Water and Carbon Isotopic Records of Modern Carbonate (CaCO3) Deposits: Stalagmite in Panlong Cave of Guilin and Its Environmental Significance桂林洞穴滴水及现代碳酸钙(CaCO_3)沉积的碳同位素记录及其环境意义
10.Environmental Significance from Organic Carbon and Its Isotope of Angulinao Lake Sediment安固里淖湖积物中总有机碳含量及其碳同位素的环境意义
11.Application and Prospect of Carbon Isotope in the Study of Carbon Cycle in Grassland Ecosystem碳同位素在草地生态系统碳循环中的应用与展望
12.a radioactive isotope of carbon.碳的一种放射性同位素。
13.A radioactive isotope of carbon, especially carbon14.放射性碳碳的一种放射性同位素,尤指碳14
14.Researches on carbon and oxygen stable isotopes of lower Paleozoic carbonates in Xuzhou area徐州地区下古生界碳酸盐岩的碳、氧同位素研究
15.Oxygen Isotope Fractionation of Common RE Fluorocarbonate常见稀土氟碳酸盐氧同位素分馏研究
16.Experimental Study of Oxgen Isotopic Fractionation in Carbonate Water-rock Interaction;碳酸盐矿物的氧同位素交换实验研究
17.CHANGES OF STABLE ISOTOPES CARBON-13 AND NITROGEN-15 IN DIFFERENT TISSUES OF CATTLE稳定性同位素碳、氮在牛不同组织中的变化规律
18.Carbon and Oxygen Isotope Variations of Devonian Seawater:Isotopic Records from Brachiopod Shell泥盆纪海水的碳、氧同位素变化——来自腕足化石的同位素记录
相关短句/例句

carbon isotopes碳同位素
1.On the basis of characteristics of geochemistry of Wengu 2 well natural gas,The formation is studied in this paper by using the methods of compare Carbon isotopes,Helium Argon isotopes of Wengu 2 well natural gas with coal-derived gas and oil-derived gas of Huabei area.在对天然气地球化学特征研究的基础上,对文古2井天然气碳同位素、氦同位素、氩同位素与华北地区煤成气、油型气的这些同位素进行了类比,并结合地质背景综合分析了天然气的成因。
2.On the basis of analysising chemical composition, carbon isotopes of natural gases and inclusions in volcanic rock, the authors discover that abiogenic natural gases exist in Xujiaweizi area.烃类气体中具有重碳同位素异常 ( >- 2 0‰ )和负碳同位素系列(δ13C1>δ13C2 >δ13C3)的同位素分布特征 ,表现出无机成因烃类气体的特点。
3.The maximum relative deviation of composition contents is less than 10%,and the maximum absolute deviation of carbon isotopes is less than 1‰.对南方海相烃源岩进行吸附气和酸解气脱气方法研究,并对其组分进行色谱和同位素分析,该方法组分含量的最大相对偏差小于10%,碳同位素值的最大绝对偏差小于1‰。
3)carbon isotopic composition碳同位素
1.The carbon isotopic compositions of the methane and ethane in the gases are greatly different.天然气甲、乙烷碳同位素变化较大,其中QHD30-1构造天然气乙烷碳同位素最重,而BZ28-1构造天然气甲烷碳同位素最重。
2.Biomarker and carbon isotopic composition indicate that the oils are quite similar geochemically but the geochemical characteristics of source rocks have differente evident though all source rock share some common characteristics of lacustrine depositional environment.选择干酪根碳同位素、Pr/Ph和生物标志化合物比值等参数计算下白垩统3套烃源岩之间的相关系数,通过聚类分析,将下白垩统烃源岩分为6类,下沟组下段和赤金堡组上段烃源岩的相关性很好,而中沟组、下沟组上段和赤金堡组下段的烃源岩差异较大。
3.The second is from the Triassic source rocks, which is similar to the first group in carbon isotopic composition, but is characteristica.根据准东地区各油田原油的碳同位素、生物标志化合物组成特征等,可将该地区原油分为5类。
4)stable carbon isotope碳同位素
1.The stable carbon isotopes of saturated hydrocarbon and specific compound composition of the oil from the trachyte near the crater are relatively low,and the negative anomalies of the .通过对欧利坨子原油地球化学特征的研究,发现原油性质的差异同储集层与火山口的相对位置有着密切的关系,在火山口附近的粗面岩储集层中,原油的饱和烃及其单体碳同位素值偏轻,类异戊二烯烃的碳同位素负异常基本消失,原油的CPI和OEP值较低(平均为1·21和1·06)。
2.This paper correlates the oils and source rocks in composite basins through the gas chromatogram, stable carbon isotope, biomarker parameters and multi-variant statistical analysis. 应用谱图形态、碳同位素分布、生标参数和多元统计法,对叠合盆地的油源对比研究进行了分析对比,发现谱图直接对比,虽简单明了,但叠合盆地的成藏特征会使得一些不具成因联系的样品具相似谱图,或有成因联系的样品谱图差别却较大;碳同位素分布亦较直观,但分馏效应使得判别时偏离值不易把握;生标参数虽具成因意义,但受多因素影响;生标参数组合能同时全面反映各控制因素;分段成熟度可以有效地判识混源油;多元统计法既能处理大量样品又能清楚界定相关性。
3.Trophic relationships among various organisms from Zhubi coral reef ecosystem in Nansha Islands were studied by stable carbon isotope technique.利用稳定碳同位素分析技术研究了南沙渚碧礁生态系食物网主要生物类群之间的营养关系 。
5)carbon and oxygen isotope碳氧同位素
1.Based on hydrochemistry,REE,carbon and oxygen isotope analyzing,possible leakage way of the Air-Cushioned Surge Chamber is studied in the Xiaotiandu power-station.利用水化学、稀土元素和碳氧同位素的分析方法探讨了小天都电站调压室可能的渗水途径。
2.In order to know the formation surroundings of the Ordovician dolostone that is Lower Paleozoic reservoir of natural gas in the Ordos Basin,the relationship between its genetic type and carbon and oxygen isotope is studied.对鄂尔多斯盆地奥陶系白云岩成因类型与碳氧同位素的关系进行了研究。
3.Based on the measurement of the formation age,and the carbon and oxygen isotope composition of calcite collected at different sites of fissures in tunnel PD?16 at a dam area,southwesten China,and combining specific hydrogeologic conditions of the dam area,authors have determined the period of karst development in the studied stream area,and paleoclimatic conditions at that tim本文在分析采集于西南某水电站PD1 6硐壁裂缝中不同位置的方解石形成年代以及碳氧同位素的基础上 ,结合坝区具体的水文地质情况 ,确定了研究河段岩溶发育的时间及其演
6)C-O isotope碳氧同位素
1.C-O isotope composition of dawsonite and its implication on the fluid origin in Wuerxun sag,Hailaer basin,China;海拉尔盆地乌尔逊凹陷片钠铝石的碳氧同位素组成及流体来源探讨
延伸阅读

碳同位素分子式:CAS号:性质:自然界中碳以12C、13C、14C三种同位素的形式存在,前二者相对丰度分别为98.89%、1.11%;14C只有极微量且具放射性,半衰期为5730年。天然物质的碳同位素组成由13C/12C比值确定的δ(13C)表示,以美国南卡罗莱纳州白垩系Pee Dee组拟箭石化石(简称PDB)作为标准品。20世纪50年代以来,浓缩和分析技术的突破,利用13C同位素的质量和磁性的同位素效应提供的信息,已广泛用于有机化学反应机理、有机物结构、天然产品生物合成及结构分析研究,酶促反应机理;农肥农药机理、植物生理、临床诊断、病理试验、药理作用及药物代谢的研究和应用。在地球科学中碳同位素广泛应用于成岩成矿作用、古海洋、石油天然气成因研究。