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。
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。
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。
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