1) hydrogen and oxygen isotope ratios
氢氧同位素比值
2) hydrogen isotope ratio
氢同位素比值
1.
Climatic implication of hydrogen isotope ratios of terrigenous n-alkanes in lacustrine surface sediment of the Tibetan Plateau;
青藏高原湖泊表层沉积物中陆源正构烷烃氢同位素比值的气候意义
2.
To explore the climatic implication of compound-specific hydrogen isotope ratios of sedimentary n-alkanes, the author sampled shallow sediment cores respectively from the climatically and environmentally distinct basins Qiangyong Glacier Lake,Kongmu Co Lake,Nam Co Lake, Keluke Lake and Xiao Qaidam Lake along a S-N transect on the Tibetan Plateau for the extraction and analysis of these biomarkers.
本文分别在青藏高原南部的大枪勇错、空姆错,中部的纳木错以及东北部的克鲁克湖和小柴达木湖钻取了浅岩芯,通过对沉积物中正构烷烃的提取分析和单体氢同位素比值的测定来探讨该类生物标志物单体δD值的气候指示意义。
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。
补充资料：氢同位素动力学同位素效应
分子式：
CAS号：
性质：在化学反应过程中反应物本身因同位素取代而改变能态，引起化学反应速度的差异。氢同位素动力学同位素效应很大，α=kH/kD可达2～10左右。0℃时Al4C3与水反应α=3.9，30℃时Fe与H2SO4反应α=6.6。轻水电解时比重水分解速度快，动力学同位素效应随电极材料、电解条件而变，氢-氘的α在3～12之间。当前采用减容电解来制取终浓重水。
CAS号：
性质：在化学反应过程中反应物本身因同位素取代而改变能态，引起化学反应速度的差异。氢同位素动力学同位素效应很大，α=kH/kD可达2～10左右。0℃时Al4C3与水反应α=3.9，30℃时Fe与H2SO4反应α=6.6。轻水电解时比重水分解速度快，动力学同位素效应随电极材料、电解条件而变，氢-氘的α在3～12之间。当前采用减容电解来制取终浓重水。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条