The mechanism of mass spectral fragmentation of six piperazine derivatives has been studied by measurement of highresolutionmassspectrometry.
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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They also separated out the DNA from the bacteria and analyzed its composition using a technique called high-resolution secondary ion massspectrometry; the isolated DNA contained arsenic.