MASS SPECTROMETRY
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http://www.chem.ucla.edu/~harding/IGOC/B/base_peak.html#:~:text=Base peak%3A The most intense,are not always base peaks.
Base peak: The most intense (tallest) peak in a mass spectrum, due to the ion with the greatest relative abundance (relative intensity; height of peak along the spectrum's y-axis). Not to be confused with molecular ion: base peaks are not always molecular ions, and molecular ions are not always base peaks.
Molecular ion: In mass spectrometry a molecule of the analyte that has been ionized by electron loss, but not fragmented.
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https://chem.libretexts.org/Bookshelves/Organic_Chemistry/Book%3A_Organic_Chemistry_with_a_Biological_Emphasis_v2.0_(Soderberg)/04%3A_Structure_Determination_I-_UV-Vis_and_Infrared_Spectroscopy_Mass_Spectrometry/4.03%3A_Mass_Spectrometry
最高的峰是base peak 但是base peak可能是分子的一部分 base peak是最高的量 作为基准 所以相对量是100% 其他量都以base peak作为基准 -
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