每当测定非常低的浓度和同位素丰度时总是首先使用无机质谱法。
Spectrometry is preferably used each time extremely low concentrations and isotopic abundance are to be determined.
每当测定非常低的浓度和同位素丰度时总是首先使用无机质谱法。
Inorganic Mass Spectrometry is preferably used each time extremely low concentrations and isotopic abundance are to be determined.
在质谱测量中，低丰度236u同位素容易受到周围强峰拖尾的干扰。
The low abundance isotope 236u is easily disturbed by strong peak tails in the measurement of Mass Spectrometry.
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