This graph is from a study investigating the day to day retention time precision with two test solutes on the Cogent Diamond Hydride 2.o™ HPLC column
Peaks:
Blue Trace: Phenylalanine
Red Trace: Phenylglycine
Many factors can affect column robustness and lifetime, so it is not possible to define specific values for those parameters.
Mobile Phase:
—A: DI Water / 0.1% Formic Acid
—B: Acetonitrile / 0.1% Formic Acid
Flow Rate: 0.3mL / minute
Injection Volume: 0.2uL
Detection: UV 254nm
Gradient:
Time (minutes) | %B |
0 | 90 |
6 | 20 |
7 | 20 |
8 | 90 |