Anorexia is a very common manifestation of disease. Cats that are eating ravenously present less of a diagnostic dilemma, as there is a shorter list of illnesses that result in increased appetite (diabetes, hyperthyroidism, pancreatic insufficiency and a few others).
The fragments that survive the journey through the analyzer shoot into the electron multiplier-the detector of the GCMS. The electron multiplier detects every ion of the selected mass that passes through the quadrupole analyzer. Electron multipliers use a process known as secondary electron emission. When the ions hit a surface, it causes the electrons in the outermost area of the atom to be released, which are known as secondary electrons.
In chemistry, an unpaired electron is an electron that occupies an orbital of an atom singly, rather than as part of an electron pair. Each atomic orbital of an atom (specified by the three quantum numbers n, l and m) has a capacity to contain a maximum of two electrons with opposite spins, an electron pair.