Table 3.

Overview on LC columns, solvents and MS mode

Analyte	Column	Solvent	MSa)	Mode	Reference
D3G	Aquasil® RP18 100 × 4.6 × 3	MeOH:water, 85:15	QTrap® MS/MS	−APCI	[37]
D3G	Synergy® fusion 150 × 4.6 × 4	MeOH:water, 70:30	QP8000® MS/MS	+Full scan	[42]
D3G	Gemini® C18 100 × 4.6 × 5	MeOH:HOAc:AA	QTrap® MS/MS	−ESI	[43]
D3G	Synergy® hydro RP 100 × 3 × 4	MeOH:water:AA	LCQ® MS/MS	±APCI	[45]
D3G	Synergy® hydro RP 100 × 3 × 4	MeOH:water:AA	LCQ® MS/MS	±APCI	[46]
D3G	Synergy® hydro RP 150 × 3 × 4	MeOH:water:AA	LCQ®	−APCI	[126]
ZEN conjugates	Aquasil® RP18 100 × 4.6 × 3	MeOH:AA gradient	QTrap® MS/MS	−ESI	[63]
Z14G	Nucleosil® C18 120 × 125 × 2	ACN:formic acid	VG® Quadrupole	+ESI	[64]
Multi	Synergy® polar RP18 150 × 4.6 × 5	ACN:HOAc:AA	QTrap® MS/MS	−ESI	[101]
Multi	Gemini® C18 150 × 4.6 × 5	MeOH:HOAc:AA	QTrap® MS/MS	±ESI	[100]
Multi	Zorbax® XDB C18 100×4.6×3.5	MeOH:water:AA	Quattro Premier XE® MS/MS	+ESI	[47]

AA, ammonium acetate.

^a)Manufacturer's abbreviated name for the system.