离子丰度指质谱分析 中检测器检测到的离子信号强度。以质谱图 中指定质荷比范围内最强峰为100%，其他 离子峰对其归一化所得的强度为离子相对丰度。标准质谱图均以离子相对丰度值为纵坐 标。（王玉瑾)
一水硬铝石表面的铝离子丰度是高岭石表面的铝离子丰度的1.7倍。
Abundance of aluminium atom on the surface of diaspore is 1.7 times larger than that on the surface of kaolinite.
用热表面离子源测定了锂同位素丰度，在样品全耗尽过程中累计离子流强度。
The isotopic ratio of lithium was determined by cumulating intensity of ion current during evaporation of all samples on evaporation filament.
对另外两种静电场方法，计算了不同外加电压、不同的初始原子密度和不同的目标同位素丰度等条件下的离子引出情况。
For the other two methods, the ion extraction characteristics were computed for various conditions such as applied voltage, initial atom density and abundance of the aimed isotope.
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