Table 6.

List of key metabolites in negative ESI mode.

Abbreviation	Metabolites	m/z	Suggested
4HBZ	4-Hydroxybebzoate	119.0248	−H2O
4HLT	4-Hydroxy-L-threonine	134.3312	−H
AD	Adenine	134.3312	−H
AKG	2-Oxoglutarate	127.0434	−H2O
GABA	4-Aminobutanoate	102.4149	−H
GL	Glycerol	73.0310 and 91.0174	−H2O −H
GLC	Glucose	179.0353	−H
GLX	Glyoxalate	73.0310	−H
GLY	Glycine	76.0346	−H
GN	Guanine	150.3323	−H
HAN	3-Hydroxyanthranilate	152.0691	−H
HCYS	Homocysteine	134.3312	−H
LACAL	Lactaldehyde	73.0310	−H
LYS	Lysine	127.0434	−H2O
MET	Methionine	148.0470	−H
MVL	Mevalonate	129.0356	–H2O
MHIS	N-Methyl-L-histidine	150.3223	−H2O
PCHO	Choline Phosphate	183.0650	−H
PDLASP	Pyridoxamine phosphate	150.3223	−H3PO4
cdAMP	Cyclic dAMP	215.0070	−H3PO4
PYRDX	Pyridoxine	150.3223	−H2O
SER	Serine	104.1285	−H
H2SO3	Sulfide	80.9743	−H
T3P1	D-Glyceraldehyde-3-phosphate	150.3223	−H2O
T3P2	Glyceronephosphate	150.3223	−H2O
URA	Uracil	93.0162	−H2O
XAN	Xanthine	151.0958	−H