TABLE 2.

Metabolites and their isobars measured via FI-MS

Metabolite(s)	m/z
Citrate/isocitrate/5-dehydro-4-deoxy-d-glucarate [M−H]−	191.020
α-Ketoglutarate [M−H]−	145.014
Malate [M−H]−	133.014
Fumarate [M−H]−	115.004
Pyruvate [M−H]−	87.009
Lactate/glyceraldehyde/dihydroxyacetone [M−H]−	89.024
Acetate [M−H]−	59.014
Glucose, galactose, allose, fructose, mannose and myo-inositol [M−H]−	179.056
Citrulline [M+H]+	176.103
Butyrate [M+H]+	89.060
Carnitine [M+H]+	162.112
Choline [M+H]+	104.107