天然同位素相关论文
一、"三素":元素、核素和同位素1.元素:具有相同核电荷数的同一类原子的总称.注意:①元素是个总称,是核电荷数相同（即核内质子数）的......
36Cl is one of the most interesting nuclides in accelerator mass spectrometry (AMS) measurements. The application of 36C......
^15N-labelled phenolic polymers were synthesized by reactions of p-benzoquinone and 1,4-diphenol with ^15N-labelled glyc......
某原子的相对原子质量是指某核素的一个原子的相对质量，即以一个12C原子质量的1/12作为标准，其他原子的质量跟它相比所得的值，就是这......
<正> As early as the 1950s, there had already been reports on the δ 15N value of some chemical fertilizers (Hoering, 19......
Study on Variation in ^15N Natural Abundance.I.Characteristics of Variation in ^15N Natural Abundanc
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The present article deals with the natural nitrogen-15 abundance of ammonium nitrogen and fixed ammonium in different so......
In this paper,the nitrogen forms in newly-formed humic substances,including humic acid (HA),fulvic acid (FA) and humic a......
天然同位素及水体的完全混合模型，计算了平大岔河隐伏岩溶地下水的滞留时间、含水怪储水系数及储存量。为西北干旱、半干旱非泉珠隐......
化学计算题的新解法──线段法贵州遵义县一中（５６３１００）梅正康贵川省南白师范（５６３１００）张仁强钱伟长教授在“科学技术新发展对今后各方面的影响”一文......
一道容易错解的题广东茂名水东开发区一中（５２５０２７）易一已知氯有两种天然同位素Ｃｌ和Ｃｌ；氯元素的平均原子量为３５．５；钠元素只有一种原子Ｎａ．求１０吨纯度为９０％食盐（杂......
以京西杨坨煤矿的试验为例,概述了应用环境同位素和其它水化学成分研究矿井突水来源的成果。为矿井防治水提供了可靠依据。......
