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1)  hydrogen isotope
氢同位素
1.
The free carbon and hydrogen isotopes in n-alkane from the Paleozoic source rocks in Huanghua depression are determined using techniques of GC-IRMS and GC-TC-IRMS to reveal the isotope compositions in different sedimentary environments.
以黄骅坳陷古生界烃源岩作为研究对象,采用GC-IRMS和GC-TC-IRMS技术对烃源岩抽提物中的正构烷烃单体碳、氢同位素进行测定,揭示不同沉积环境中正构烷烃单体碳、氢同位素的组成特征。
2.
Palladium-hydrogen system has the largest isotope effect in the metal-(hydrogen) systems so far as we know,so palladium is widely used in hydrogen isotopes(disposal) technology.
在迄今所知的金属-氢体系中,钯氢体系的同位素效应最强,因此,钯被广泛用于氢同位素处理工艺中。
3.
In addition,the experiment working standard of H2 was certified by H2 /H2O(l) equlibrium H/D isotope analysis associating with hydrogen isotope fractionation equilibrium.
采用Gasbench-IRMS对水平衡氢同位素质谱分析影响因素进行了研究,确立了分析方法。
2)  hydrogen isotopes
氢同位素
1.
Separation of hydrogen isotopes with low temperature adsorption;
低温吸附法分离氢同位素
2.
The principle of gas chromatographic separation of hydrogen isotopes was briefly introduced.
简要介绍了气相色谱法分离氢同位素的原理,重点阐述了利用气相色谱法分离氢同位素的几种主要工艺(洗提色谱法、氢置换色谱法、自置换色谱法和前沿置换色谱法)及其应用进展,并对气相色谱法在氢同位素分离中的应用前景进行了评述。
3.
The static differential pressure method is used to study the cryogenic adsorption of hydrogen isotopes on the carbonaceous adsorbents, including activated carbon(AC), carbon molecular sieve(601) and carbon nanofibers(CNF).
采用静态压差法研究了液氮温度下碳基吸附剂活性炭(AC)、碳分子筛(601)和碳纳米纤维(CNF)对氢同位素的吸附行为。
3)  hydrogen and oxygen isotope
氢、氧同位素
4)  hydrogen and oxygen isotope
氢氧同位素
1.
The hydrogen and oxygen isotope exchange kinetic and its geological significance;
氢氧同位素交换动力学及其地质意义
2.
The mean values from 26 samples of hydrogen and oxygen isotope compositions of diaspore in bauxite ores of Shanxi are that:8.
其 2 6个一水硬铝石的氢氧同位素平均值 :δ1 8O为 8。
3.
This paper summarizes both methods for the study of hydrogen and oxygen isotope diffusion kinetic parameters: conventional mass spectrometry analysis method with integral diffusion equation; the ion microprobe analysis method with the differential diffusion equation.
本文概述了氢氧同位素扩散交换动力学参数的两种研究方法 :1采用积分性质扩散方程的常规质谱分析方法 ;2采用微分性质扩散方程的离子探针分析方法。
5)  oxygen and hydrogen isotope
氢氧同位素
1.
Explain about the source of mine water by oxygen and hydrogen isotope composition in Fuxin coalmine area
氢氧同位素组成对阜新煤矿区矿井水来源的解释
2.
Utilizing hydrochemistry analysis and oxygen and hydrogen isotope analysis,integrating with hydrogeologic condition,the water environment of study area is described and reference to engineering construction is provided.
利用水化学、氢氧同位素分析,结合研究区水文地质条件,阐述了研究区水环境特征,为工程建设提供了参考依据。
6)  H and O isotopes
氢氧同位素
补充资料:氢同位素
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性质:自然界中氢以1H(氕,H),2H(氘,D),3H(氚,T)三种同位素的形式存在,相对丰度分别为99.985%,0.015%,10-18%,其中氚具放射性,半衰期为12.33年。天然物质的氢同位素组成由D/H比值确定的δ(D)表示,以标准平均海洋水(SMOW)作为标准品。在地球科学中氢同位素通常与氧同位素或碳同位素配合,研究大气降水的成岩成矿作用及石油与天然气的成因。可用于热核反应和标记化合物等。液氢精馏、水电解或重水分解均可大规模制氘。液氖吸收法制氘的成本可与液氢精馏法相比。吸附分离与色谱分离是小规模制氘的好方法。利用像热扩散塔中实行自然对流的电泳法,设备简单、能耗小,预计可以以硫化氢双温交换过程(GS过程)竞争。激光分离氢同位素是很有希望的方法。采用氟化氘-水激光分离体系,投资比GS过程节约80%~90%,操作费用节约5/6,已接近实现工业生产水平。

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