天然丰度;自然丰度
However, the natural abundance of deuterium is very small, only about 0.015%, so that how to separate deuterium from hydrogen is quite critical. The heavy isotope of hydrogen, deuterium, is an important material in nuclear industry.
然而在氢的天然同位素中,重氢含量只有0.015%,如何提取氢气中的氘气至关重要。
~ ( 13) C at Natural Abundance Levels in the Broad-leaved Deciduous Forest in the Warm-temperate Region of China: Their δ~ ( 13) C Values and Ecological Significance
中国暖温带落叶阔叶林中某些树种的~(13)C自然丰度:δ~(13)C值及其生态学意义
Measurement of Primary Kinetic Deuterium Isotope Effect of the Reaction of Enamine Formation Using Natural Abundance Deuterium NMR
天然氘核磁共振法测定环酮的烯胺化反应的一级动力学氘同位素效应
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