Mass spectroscopy is a method used for detection of a compound’s molecular mass and structure. Mass spectrometer used for this purpose determines the mass of a molecule by measuring its ions’ mass-charge (m/z) ratio. Once ions are formed, they are transmitted to mass analyzer for separation based on mass-charge ratio. The spectrum created as a result of molecular ionization, ion separation and ion determination, provides information regarding the compond’s molecular mass and even structure. The latest advances in technology allowed application of mass spectrometry in various fields of science, from biotechnology to pharmaceutical studies.