1) hydrogen isotope fractionation
氢同位素分馏
1.
Pressure effect on hydrogen isotope fractionation between intermediate- acidic silicate melts and water;
中酸性硅酸盐熔体-水体系氢同位素分馏的压力效应
2) hydrogen isotopc fractionation
氢同位素平衡分馏
3) Isotopic fractionation
同位素分馏
1.
Because of the special feature with the multivalences,multi-mass number and larger isotopic fractionation,Se isotopes have caused more attention.
硒同位素作为非传统稳定同位素的重要组成部分,由于具多价态、多质量数、同位素分馏效应大的特点,已成为目前发展最迅速的同位素之一。
2.
The isotopic fractionation under microbial actions belongs to the kinetic isotopic fractionation,which results in the enrichment of heavier isotopes in .
微生物作用下的同位素分馏为动力同位素分馏,导致重同位素在残余物中富集。
3.
There exist possible isotopic fractionation effects in generation-expulsion process of terrestrial source rocks.
在陆相干酪根生排烃过程中,烃类可能会发生同位素分馏效应。
4) isotope fractionation
同位素分馏
1.
Through acetone via 2,4-dinitrophenylhydrazine(DNPH)derivatization,it was found that isotope fractionation values were so little as to be ignored during the whole reaction process,the derivatization process showed that no carbon isotope fractionation occurred for acetone within the precision limits of the GC/C/IRMS system(<0.
研究结果表明,在衍生化过程中不会产生碳同位素分馏。
2.
The researchful status of the isotope fractionation the stable isotopes in tracing to sources and trailing pollutant,specially in apportioning the atm.
介绍了稳定同位素分馏对于来源分析的影响以及稳定同位素技术在污染物溯源与示踪中识别大气多环芳烃来源、推测环境中硫和铅的来源、考察甲基叔丁基醚来源与降解过程等方面的应用进展。
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.
在此基础上进行了本地饮用水的分析,并结合H2-H2O(l)体系氢同位素分馏平衡方程,实现实验室氢气工作标准气的标定,结果与铬还原法标定值相一致。
5) Sulfur isotope fractionation
硫同位素分馏
1.
Advances in the theoretical calculation research of sulfur isotope fractionation in sulfides;
硫化物中硫同位素分馏理论计算研究进展
6) Fractionation of argonisotope
Ar同位素分馏
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