How long does LC MS take?
More commonly, analytes require somewhat longer chromatography times for optimal separation. However, even with, by LC-MS/MS standards, long chromatography run times of 10–12 minutes, this leads to a different sample being introduced into the system every 2.5 to 3 minutes.
What does GCMS measure?
More volatile chemicals move faster than less volatile chemicals. Quantifies – The GCMS tells you the amount of each chemical present in a sample by comparing to a standard, a pre-measured known amount of the chemical also measured on the GCMS.