1. Specifications
Preparative liquid chromatography columns are provided in a variety of specifications, and technical services for the repacking and maintenance of these columns are also available
Various specifications available for selection:
| Chromatographic Media |
| Packing Material Type |
Particle Size(um) |
Pore size(A) |
Surface Area(m/g) |
Carbon Loading(%) |
| 120-10-C18-AP |
10 |
120 |
300 |
17 |
| 120-10-C18-BP |
10 |
120 |
300 |
15 |
| 120-10-C18-BIO |
10 |
120 |
300 |
20 |
| 120-10-C8-B10 |
10 |
120 |
300 |
12 |
| 200-10-C8-BI0 |
10 |
200 |
200 |
8 |
| 120-10-C4-BI0 |
10 |
120 |
300 |
9 |
| 300-10-C4-BIO |
10 |
300 |
100 |
3 |
| 120-10-NH: |
10 |
120 |
300 |
4 |
| 120-30/50-C18-AP |
40 |
120 |
300 |
17 |
| 120-30/50-C18-BP |
40 |
120 |
300 |
15 |
2. Application
Sample Name: SY-32
Preparation Objective: The target analyte content is 17% before purification, and >95% after purification.
The following are the chromatograms before preparation, during preparation, and after preparation:

Pre-purification Chromatogram (Target Purity 17%)
Column: 4.6 mm ID × 250 mm GS-120-5-AP
Mobile Phase:
- Solvent A: Acetonitrile with 0.1% Trifluoroacetic Acid (TFA)
- Solvent B: Water with 0.1% Trifluoroacetic Acid (TFA)
Gradient:
- 0.01 min: 12% A, 88% B
- 25.0 min: 37% A, 63% B
- 25.1 min: 100% A, 0% B
- 30.0 min: STOP
Detection Wavelength: UV @ 220 nm
Temperature: 25 °C
Injection Volume: 20 μL

Preparative Chromatogram
Column: 20 mm ID × 250 mm GS-120-10-C18-AP
Mobile Phase:
- Solvent A: Acetonitrile with 0.1% Trifluoroacetic Acid (TFA)
- Solvent B: Water with 0.1% Trifluoroacetic Acid (TFA)
Gradient:
- 0.01 min: 14% A, 86% B
- 25.0 min: 18% A, 82% B
- 25.1 min: 100% A, 0% B
- 30.0 min: STOP
Detection Wavelength: UV @ 220 nm
Temperature: 25 °C
Injection concentration: 11.5 mg/mL

Purified analytical chromatogram (target purity: 95.85%)
Column: 4.6 mm ID × 250 mm GS-120-5-C18-AP
Mobile Phase:
- Solvent A: Acetonitrile with 0.1% Trifluoroacetic Acid (TFA)
- Solvent B: Water with 0.1% Trifluoroacetic Acid (TFA)
Gradient:
- 0.01 min: 12% A, 88% B
- 25.0 min: 37% A, 63% B
- 25.1 min: 100% A, 0% B
- 30.0 min: STOP
Detection Wavelength: UV @ 220 nm
Temperature: 25 °C
Injection Volume: 20 μL
Other details:
- Transportation:By air if not specified.