1) Hydrogen stable isotope
氢稳定同位素
2) hydrogen and oxygen stable isotopes
氢氧稳定同位素
1.
Characteristics of the hydrogen and oxygen stable isotopes in karst water of seam floor in the mining district of the northern Anhui Province;
皖北矿区煤层底板岩溶水氢氧稳定同位素特征
2.
Composing characteristic of hydrogen and oxygen stable isotopes and tracing of hydrological cycle;
深层地下水氢氧稳定同位素组成与水循环示踪
3.
The theory and application of hydrogen and oxygen stable isotopes in soil evaporation are introduced in this paper.
介绍了利用氢氧稳定同位素研究土壤蒸发的基本原理,综述了国内外对土壤蒸发中氢氧稳定同位素技术应用的研究现状,分析了盐类、温度梯度、土壤水迁移机制和土壤分层及植被等因素对各种土壤蒸发机理及其描述计算方法的影响,利用氢氧稳定同位素在土壤蒸发过程中的分馏特性揭示了土壤蒸发机理。
3) stable hydrogen and oxygen isotopes
氢氧稳定同位素
1.
Characteristics of stable hydrogen and oxygen isotopes of precipitation and runoff in Wudaogou Hydrological Experimental Catchment
五道沟试验场降雨径流中的氢氧稳定同位素特征分析
4) stable hydrogen isotope
稳定性氢同位素
1.
The relationship between the stable hydrogen isotope in cattle tissues and the longitude,latitude and altitude of the region was analyzed,and the feasibility of applying the stable hydrogen isotope to trace the beef geographical origin in China was discussed.
探讨了利用高温热解炉和同位素比率质谱仪(IRMS)联用测定肉品中稳定性氢同位素比率的方法,并利用此方法测定了我国不同地域来源脱脂牛肉、牛尾毛中氢同位素比率。
5) stable hydrogen and oxygen isotope
稳定性氢氧同位素
1.
The stable hydrogen and oxygen isotope is an environmental isotope, which extensively exists in various kinds water.
稳定性氢氧同位素是广泛存在于水中的环境同位素。
6) compound-specific δD values
单体氢稳定同位素
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