Peptide Medix product catalog

Research Catalog · peptide family

Sample Extraction Reagents and Columns — Research Products

4 catalog items

Catalog # Product Type Species Size Price Add to cart
RK-BA-1 Buffer A Kit Supplies Other species 1x 500 ml $40.00 $48.00
RK-BB-1 Buffer B Kit Supplies Other species 1x 100 ml $47.00 $56.00
RK-SEPCOL-1 C-18 SEP-Column Pack Kit Supplies Other species 50 columns $206.00 $243.00
RK-EXTRACT Extraction Kit Set (2 Buffer A, 2 Buffer B and 1 SEP-Column) Kit Supplies Other species 1 Set $365.00 $430.00

All items are supplied for in vitro laboratory research use only — not for human or veterinary use, diagnosis or therapy. Prices are per unit as listed; each catalog number ships with its Certificate of Analysis.

Sample Extraction Reagents and Columns — frequently asked

What is in this product family?
It contains sample preparation items rather than peptides: extraction kits, matched buffer sets and small prepacked separation columns used to concentrate peptide analytes and remove interfering material before a research immunoassay is run.
Why is extraction needed before an assay?
Plasma, serum and tissue extracts contain proteins, lipids and binding factors that can interfere with antibody-based detection, and many peptide targets occur at low concentration. Solid-phase extraction concentrates the analyte and reduces matrix interference before measurement.
Do these reagents work with any assay?
They are usually specified for particular assay formats and analytes. Recovery and matrix effects should be validated for each peptide and sample type, and protease inhibitors with prompt sample processing are commonly recommended alongside extraction.