SeQuant ZIC-cHILIC, 10 cm x 2.1 mm, 3.0 μm particles (< href="/ProductLookup.html?ProdNo=150657&Brand=MM">1.50657.0001)
[A] acetonitrile; [B] 50 mM or 100 mM ammonium acetate, pH 5.3 with acetic acid in water
26 to 27% B in 10 min; to 27 to 35% B in 10 min; to 26% B in 0.1 min; hold at 26% B for 4.9 min
0.3 mL/min
1125 psi (77 bar)
40 °C
Q-TOF (ESI-negative), XIC of the following m/z values: AMP-346, ADP-426, ATP-506, CMP-322, CDP-402, CTP-482, GMP-362, GDP-442, GTP-522, UMP-323, UDP-403, UTP-483
10 μL
10-30 μg/mL of nucleotides (AMP, ADP, ATP, CMP, CDP, CTP, GMP, GDP, GTP, UMP, UDP, UTP) (80/20 acetonitrile/50 mM ammonium acetate in water, pH 5.3 with acetic acid)
Adjusting buffer concentration and the ionic strength can alter retention and selectivity in HILIC. The buffer salts in HILIC mobile phases are important in reducing electrostatic interactions (attraction and repulsion) between charged analytes and the stationary phase.
SeQuant is a registered trademark of Merck KGaA, Darmstadt, Germany