Direct examination of biological tissue by mass spectrometry (MS) has been raised in the 1970s, but then the next available technical conditions, the method did not provide any useful information on the chemical composition of the samples tested.
Direct examination of biological tissue by mass spectrometry (MS) has been raised in the 1970s. Then the next available technical conditions, the method did not provide any useful information on the chemical composition of the samples. These samples were tested.