This technique measures the abundance of each m-over-z ratio in a sample by subjecting fragments to a magnetic field.
Sinapinic acid is most commonly used for this procedure. It often requires helium to be pumped into a collision cell in an intermediate step. This technique is done twice in a row, or in tandem, to sequence proteins. In a common method of prepping this procedure, a laser is fired at a matrix to desorb a sample. The output of this procedure is commonly shown as a bar graph with an M+1 signal right next to the (*) base peak, which is the radical cation formed in this procedure's first step. This technique measures the abundance of each m-over-z ratio in a sample by subjecting fragments to a magnetic field. For 10 points, name this form of spectrometry which distinguishes between isotopes because of the difference in ions' molecular weights.
Sinapinic acid is most commonly used for this procedure. It often requires helium to be pumped into a collision cell in an intermediate step.
mass spectrometry