Provided is a method for characterising a molecule by mass spectrometry, which molecule comprises one or more free amino groups, which method comprises: (a) reacting one or more free amino groups in the molecule with a mass tag reagent comprising a reactive functionality capable of reacting with an amino group, and a tertiary amino group linked to the reactive functionality; and (b) characterising the molecule by mass spectrometry.
提供的是一种通过质谱法表征分子的方法,该分子包括一个或多个自由
氨基,该方法包括:(a)用一种质量标记试剂反应分子中的一个或多个自由
氨基,该质量标记试剂包含能够与
氨基反应的反应性官能团和与反应性官能团相连的三级
氨基;和(b)通过质谱法表征该分子。