They also separated out the DNA from the bacteria and analyzed its composition using a technique called high-resolution secondary ion mass spectrometry; the isolated DNA contained arsenic.
然后他们从细菌中提取出dna，利用高解析二次离子质谱技术分析了其中的化学组成，发现DNA中也含有砷。
Among the destructive techniques able to provide the desired depth resolution the most widely used technique is secondary-ion-mass spectroscopy (SIMS).
在可以提供所希望的纵向分辨率的损伤技术中，最广泛运用的是二次离子质谱(SIMS)。
Among the destructive techniques able to provide the desired depth resolution the most widely used technique is secondary-ion-mass spectroscopy (SIMS).
在可以提供所希望的纵向分辨率的损伤技术中，最广泛运用的是二次离子质谱(SIMS)。
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