
Quality Control Testing Services
RayBiotech is dedicated to providing quality control services to maintain the highest standards of accuracy throughout your research journey. Our team of scientists routinely performs rigorous QC assays to ensure the integrity of our products and services. Leveraging this expertise, we offer assistance in conducting essential quality control tests on your samples. Simply send us your samples and specify your desired QC analyses. We will conduct the necessary assessments and deliver a comprehensive report, providing invaluable data to support your research objectives.
QC testing capabilities
- N-terminal sequence analysis
- SDS-PAGE for protein analysis
- Endotoxin removal and quantification
- Host cell DNA content evaluation
- Host cell protein content measurement
- Biological activity and functionality assessment
- Microbial and mycoplasma testing
- Comprehensive stability data
Apart from our routine QC testing capabilities, we are also equipped to undertake custom projects tailored to your specific needs. Talk to one of our experts today to discuss your custom QC requirements and get your project started.
Endotoxin Removal of Recombinant Yersinia pestis F1 Capsule Protein

Left:Â SDS PAGE gel displaying recombinant Yersinia pestis F1 Capsule protein derived from E. coli (230-00068). MW = 17 kDa.
Right: Endotoxin levels before and after removal. The endotoxin removal column has a binding capacity of 2,000,000 EU/mL and effectively eliminates 99% of endotoxins from F1 capsule protein.
Colorimetric Activity Assay for Human Superoxide Dismutase

Left:Â SDS PAGE gel displaying recombinant human superoxide dismutase [Cu-Zn] (Sod1) protein derived from E. coli (230-00587). MW = 18 kDa.
Right:Â Superoxide dismutase activity assay. The assay measures the decrease in superoxide anions generated by the enzyme xanthine oxidase. Superoxide anions interact with a tetrazolium dye, yielding color at 450 nm. The decrease in color signal is proportional to Sod1 (230-00587) inhibition activity.
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Features
- Comprehensive Service: Send us your samples, we'll send you results!
- Fast Turnaround: 2-3 weeks, with an option to expedite the service (additional fees apply).
- Customized: Tailored to meet your needs.
- Competitive Prices: The more samples you send for analysis, the more you save.