S Cation Exchange Resins price

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1.Details

Ion Exchange Chromatography (IEC) is the most commonly used method for the separation and purification of biomacromolecules based on the type, number, and distribution of its specific surface charges. S cation exchange resins use polymethacrylate as the matrix. The hydrophilicity of the matrix is improved through surface modification. Meanwhile, through proprietary nano-micro structure regulation technology, products with different pore sizes ranging from 30-1000nm can be achieved, fully meeting the purification needs of biomacromolecules such as peptides, recombinant proteins, nucleic acids, vaccines, antibodies, viruses, and virus-like particles. High-throughput capacity is also suitable for viscous loading samples. Products with different sizes and pore sizes are available according to application needs, meeting the requirements of capture, intermediate purification, polishing, and analytical purification processes. Duoning provides comprehensive solutions for biological sample purification from laboratory to industrial production.

2.Features

Table 1: Duoning small pore Cation Exchange Resins HPS series

Properties	HPS-15M	HPS-30	HPS-60	HPS-90	HPS-120
Average Particle Size	15±5μm	40μm±10μm	70μm±20μm	90μm±15μm	110μm±25μm
Pore Size	30nm
Matrix	Polyacrylate
Ligand	sulfonic acid group(-SO3-)
Type of Ligand	acid type ligand
Dynamic binding Capacity	≥40mg lysozyme/ml wet resin gel
Application	polishing		purification
Maximum Pressure Limit	1 MPa
pH Stability	pH 3-13
Storage	2~30 ℃ (20% Ethanol)

Table 2: Duoning Large pore Cation Exchange Resins CPS series

Properties	CPS-30	CPS-60	CPS-120
Average Particle Size	40μm±10μm	70μm±20μm	110μm±25μm
Pore Size	100nm
Matrix	Polyacrylate
Ligand	sulfonic acid group(-SO3-)
Type of Ligand	acid type ligand
Dynamic binding Capacity	≥20mg lysozyme / ml wet resin gel
Application	polishing	purification
Maximum Pressure Limit	1 MPa
pH Stability	pH 3-13
Storage	2~30 ℃(20%Ethanol)

Table 3: Duoning Macroporous Cation Exchange Resins GPS series

Properties	GPS-30	GPS-60(500)	GPS-60(1000)	GPS-120
Average Particle Size	40μm±10μm	70μm±20μm	70μm±20μm	110μm±25μm
Pore Size	500nm	500nm	1000nm	500nm
Matrix	Polyacrylate
Ligand	sulfonic acid group(-SO3-)
Type of Ligand	acid type ligand
Dynamic binding Capacity	≥15mg lysozyme /ml wet resin gel		≥10mg lysozyme / ml wet resin gel	≥15mg lysozyme / ml wet resin gel
Application	Supermacromolecule polishing	Supermacromolecule purification
Maximum Pressure Limit	1 MPa
pH Stability	pH 3-13
Storage	2~30 ℃ (20% Ethanol)

Protocol
Ion exchange resin is widely used for the separation and purification of proteins, enzymes, polysaccharides, nucleic acids, etc. Chromatographic operation typically includes steps such as equilibration, sample loading, washing, elution, and regeneration. The specific operating methods are as follows:

1.      Equilibration: Equilibrate the column with 5-10 column volumes (CV) of equilibration buffer (e.g., 20 mM PB, pH 7.0; the specific buffer system should be selected and optimized based on the stability and isoelectric point of the target protein) at a flow rate not exceeding the maximum pressure limit, until the conductivity and pH of the effluent remain constant (consistent with the equilibration buffer).

2.      Sample Loading: The sample loading buffer should be as consistent as possible with the equilibration buffer; solid samples can be dissolved and prepared in equilibration buffer; dilute samples can be dialyzed with equilibration buffer or supplemented with the corresponding amount of salt; concentrated sample solutions can be diluted with equilibration buffer. To avoid clogging the chromatography column, sample solutions should be centrifuged or microfiltered (0.45 μm). The loading volume should be calculated based on the binding capacity and the target protein content in the sample solution.

3. Washing: After loading, continue washing with equilibration buffer until the UV absorbance drops to baseline.

4.   Elution: Elute with elution buffer (e.g., 20 mM PB + 1M NaCl, pH 7.0). Elution methods include pH gradient elution, linear gradient elution, or step gradient elution.

5.   Regeneration: After each cycle, clean the column with 1-2 M NaCl to remove strongly bound proteins.

6.      Cleaning In Place (CIP): After 5-10 uses (the specific number depends on the type and source of raw materials and experimental requirements), the column requires Cleaning In Place, which can refer to the table below.

7. Storage: Store in 20% ethanol at 2-30°C; The unpacked resins can be flushed with 20% ethanol and then stored at 2-30°C.

8. Other Considerations: When using and storing the column, avoid letting it run dry or become poorly sealed to prevent air bubbles from entering.

3.Specification

Duoning Biotech is a leading one-stop bioprocess solutions provider from China, committed to offering products and services required for the discovery, development and commercialization production of biologics, including reagents, consumables, instruments, equipment, and services. Leveraging our integrated bioprocess system, we empower our customers to achieve effective, reliable, lower-cost and higher-quality biologics manufacturing processes.