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。
The mechanism of mass spectral fragmentation of six piperazine derivatives has been studied by measurement of high resolution mass spectrometry.
通过高分辨质谱测定，研究六种哌嗪衍生物的质谱裂解机理。
Through high-resolution mass spectrometry and two-dimensional NMR spectroscopy, the invention determines the chemical structure of the compound.
采用高分辨质谱和二维核磁共振谱等光谱技术，确定了该化合物的化学结构。
Through high-resolution mass spectrometry and two-dimensional NMR spectroscopy, the invention determines the chemical structure of the compound.
采用高分辨质谱和二维核磁共振谱等光谱技术，确定了该化合物的化学结构。
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