This material may consist of step-by-step explanations on how to solve a problem or examples of proper writing, including the use of citations, references, bibliographies, and formatting. This material is made available for the sole purpose of studying and learning - misuse is strictly forbidden.Q1. Three ion sources used by the Mass Spectrometry Facility are electrospray ionization (ESI), Electron Impact (EI) and Matrix-Assisted Laser Desorption Ionization (MALDI). The best ion source for a polymer is MALDI, because a polymer can be a mixture of several compounds, for a synthetic peptide is ESI, because this is relatively pure sample, and for a volatile organic compound is EI...
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