In a magnetic sector (single-focusing) mass spectrometer, it might be reasonable under some circumstances to monitor one m/z value, to then monitor a second m/z. and to repeat this pattern in a cyclic manner. Rapidly switching between two accelerating voltages while keeping all other conditions constant is called peak matching (a) Derive a general expression that relates the ratio of the accelerating voltages to the ratio of the corresponding m/z values.
(b) Use this equation to calculate m/z of an unknown peak if m/z of the ion used as a standard, CF3+, is 69.00 and the ratio of V unknown /V standard is 0.965035.
(c) Based on your answer in part (b), and the assumption that the unknown is an organic compound that has a mass of 143, draw some conclusions about your answer in part (b), and about the compound.