National Health Laboratory Service
For the purchase of Bicinchoninic Acid ( BCA) Protein Assay Kit.
Tender Close Date:
Protein Tenders
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Methodology
Obpva - Onderstepoort Biological Products Limited
The Filter Press: Raw CSL contains high amounts of suspended solids, insoluble proteins, and coarse particles. Before adding it to a clean fermentation medium, it must be clarified with a filter press or membrane filtration to remove these solids, so they dont foul equipment or interfere with final product isolation. Filter Sheets: These depth- filtration sheets are stacked inside the filter press to trap fine particles and provide highly polished, clear liquid feedstock
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Obpva - Onderstepoort Biological Products Limited
The vendor shall supply and deliver one factory- sealed pack of 10K MWCO medium- large volume rigid dialysis cassettes ( specifically accommodating a 5 mL to 15 mL sample capacity range per unit) featuring integrated self- floating housing elements. The cassettes must be constructed from highly purified regenerated cellulose membranes to ensure maximum target protein retention (& 45 kDa) while permitting rapid, bidirectional diffusion of low molecular weight compounds
Tender Close Date:
Obpva - Onderstepoort Biological Products Limited
The vendor shall supply and deliver one complete, factory- sealed 96- well sandwich ELISA kit containing all chemical reagents and components necessary to quantify Rabbit Interferon- gamma ( IFN-). The kit must include a pre- coated plate with a specific capture antibody, alongside pre- measured vials of lyophilized rabbit IFN- protein standards, biotinylated detection antibodies, and Horseradish Peroxidase ( HRP)- Streptavidin conjugate. Additionally, the shipment must include all required operational li
Tender Close Date:
Obpva - Onderstepoort Biological Products Limited
Protein Sequencing
Sequencing of antigens will confirm that the correct components are being used for vaccine formulation. This is essential for the safety of animals and efficacy of the vaccine
request for quotation for goods and services protein sample protein sequencing
Tender Close Date:
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