Columns/YMC*Gel
| Particle size | : | 3µm,5µm 10µm |
| Pore size | : | 120Å |
| Carbon contents | : | 16% |
| Usable pH range | : | 2.0-8.0 |
The choice of Columns for analysis of difficult compounds by HPLC
YMC-Pack Pro C18 columns start with a tightly controlled, highly purified silica gel, followed by a high-coverage C18 bonding and finish with a unique endcapping procedure utilizing Lewis acid/Lewis base chemistry. Together, these provide unequaled separations with sharp and symmetrical peaks for all types of organic molecules, especially basic pharmaceuticals and chelating compounds.
- High performance, reproducible, reliable columns designed for the most demanded HPLC
- Made with highly inert, ultrapure, pH neutral silica
- Extremely rigorous physical and chemical specifications
- Novel Lewis acid/Lewis base endcapping
- Very high efficiency columns, typically 100,000 to 120,000 plates/metre for 5µm and 130,000 to 150,000 plates/metre for 3µm packings
- Continues YMC proven batch-to-batch and column-to-column reproducibility
Tricyclic antidepressants
- Desipramine hydrochloride
- Acenaphthene(I.S.)
- Imipramine hydrochloride
- Amitriptyline hydrochloride
| Column | : | YMC-Pack Pro C18(5µ,120Å) 150X4.6 mmI.D. |
| Eluent | : | 20mM KH2PO4-K2HPO4 (pH 6.9) /methanol (25/75) |
| Flow Rate | : | 1.0 mL/min |
| Temperature | : | 37°c |
| Detection | : | UV at 254 nm |
| Basic Peptides | Neutral Peptides |
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| Column | : | YMC-Pack Pro C18 and ODS-A(5µ,120Å) 75X4.6mmI.D. |
| Eluent | : | A)water/TFA (100/0.1) B)acetonitrile/TFA (100/0.1) 20-40 %B (0-20min,linear) |
| Flow Rate | : | 1.0 mL/min |
| Temperature | : | 37°c |
| Detection | : | UV at 220 nm |
YMC-Pack Pro C18 is manufactured with a unique endcapping procedure and provides excellent peak symmetry for Basic peptides and equal separation performance for neutral peptides compared with ODS-A.
Excellent reproducibility

Excellent reproducibility for separation of hydrophobic, hydrophilic, basic,
and acidic compounds.
YMC controls packing condition under stringent quality control criteria. That is because YMC provides columns of high theoretical plate number and consistently reproducible quality.
Batch certificates |
Column inspection reports![]() Columns inspection reports that show column quality such as theoretical plate number and asymmetry factor are also shown. All analysis conditions including the sample concentration are shown so the analyst may periodically use the same conditions to evaluate column degradation. |
Attached batch certificates and column inspection reports prove batch-to-batch and column-to- column reproducibility.




