题目内容
蒽醌类衍生物的质谱中主要离子峰有
2021-10-23
A.分子离子峰为基峰
B.游离蒽醌脱去1分子CO的强峰
C.游离蒽醌脱去2分子CO的强峰
D.脱去1分子C0的双电荷峰
E.脱去2分子C0的双电荷峰
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