In a time-of-flight mass spectrometer an ion having m/z of 22,000amu is accelerated with a voltage of 2500 V. The drift tube is 2.00 meters long.
1. Explain how much time is required for the ion to reach the detector?
2. In the MS configuration known as MALDI_TOF, the sample is usually mixed with a "matrix". Explain what is typical matrix material, define what is the purpose, and what advantage does MALDI have over other ionization methods