Tandem mass spectrometry means: Tandem mass spectrumtry: This is a procedure that uses two mass spectrometers connected together by a colliding cell. The first mass spectrometer weighs the sample, which is then chopped up in the collision cell. A second mass spectrometer weighs the pieces. Tandem mass spectrometry can be used for newborn screening. It is used to identify molecules, such as amino acids. These are the building blocks of proteins or fatty acids. Tandem mass spectrumtry can be abbreviated to Tandem MS, MSMS. Also see: Mass spectrometry. You can also see Mass spectrometry.
(in Medical Dictionary)