Enter the mass (in Daltons) and charge (in elementary charge units) into the calculator to determine the mass-to-charge ratio (m/z value) of an ion. The m/z value is a dimensionless quantity that is widely used in mass spectrometry.
M/Z Value Formula
The following formula is used to calculate the m/z value.
m/z = M / Z
Variables:
- M is the mass of the ion (Daltons, Da)
- Z is the charge of the ion (elementary charge units, e)
To calculate the m/z value, divide the mass of the ion by its charge.
What is an M/Z Value?
The m/z value is a dimensionless quantity that represents the mass-to-charge ratio of an ion. It is a fundamental parameter in mass spectrometry, which is a technique used to measure the masses of particles, the elemental composition of a sample, and the chemical structures of molecules. The m/z value helps in identifying and quantifying molecules in a sample.
How to Calculate M/Z Value?
The following steps outline how to calculate the m/z value.
- First, determine the mass of the ion (M) in Daltons (Da).
- Next, determine the charge of the ion (Z) in elementary charge units (e).
- Next, gather the formula from above = m/z = M / Z.
- Finally, calculate the m/z value.
- After inserting the variables and calculating the result, check your answer with the calculator above.
Example Problem :
Use the following variables as an example problem to test your knowledge.
Mass of the ion (M) = 196 Da
Charge of the ion (Z) = 2 e
‘