Sample Concentration & Desalting

Sample concentration and desalting can be used to concentrate a dilute target, remove salts or non-volatile buffer components, or accomplish both in one trapping workflow. The basic approach is to retain the target, wash away unwanted matrix components, and then elute the target for downstream analysis.

Basic workflow
Retain target → wash away unwanted matrix components → elute target
Choose Your Application Path
Peptide Concentration & Desalting

Use the Peptide Concentration & Desalting Trap option available in OPTI-TRAP for this application.

Protein Concentration & Desalting

Use the Protein Concentration & Desalting Trap option available in OPTI-TRAP for this application.

Small-Molecule Concentration / Desalting Contact Optimize Technologies to confirm the appropriate current chemistry and configuration for your method. See technical help →
Continue to OPTI-TRAP Cartridges For peptide and protein concentration/desalting, continue to OPTI-TRAP Cartridges. Complete the exact cartridge configuration on the product page. View OPTI-TRAP Cartridges →

Peptide Concentration & Desalting Trap and Protein Concentration & Desalting Trap are application-specific chemistry identities. Similarly named generic chemistries are not automatically equivalent. For detailed chemistry guidance, use the Trap Chemistry Reference.

Check Your System Requirements

If pressure, flow, connections, method requirements, or another system constraint makes OPTI-TRAP unsuitable for your setup, contact Optimize Technologies before selecting another Trap family.

References & Related Applications

Use the Trap Compatibility & Holder Reference to confirm the correct cartridge and holder combination. For detergent-removal applications, use Detergent Removal. For the tandem SCX / peptide concentration-desalting workflow, use Peptide Fractionation & 2D LC Trapping.

Need help choosing the right approach? For small-molecule concentration/desalting, unclear chemistry, system or method constraints, exact configuration questions, or an uncertain cartridge/holder pairing, contact Optimize Technologies.