# Diagnostic Enzymes (ELISA & Assay Grade)

> Bulk diagnostic enzymes (ELISA & Assay Grade) for industrial kits, biosensors, and QC testing. High-purity HRP and AP with certified activity. Request a free sample or quote today.

## About
Diagnostic Enzymes (ELISA & Assay Grade) is available from enzymelinked.com — an industrial enzyme supplier.
Contact: inquiry@enzymelinked.com

## Applications
- ELISA Kits: Assay-grade HRP and alkaline phosphatase conjugates for sandwich and competitive ELISA kit manufacturing with consistent lot-to-lot performance.
- Clinical Diagnostics: Enzymes for automated clinical analyzers — glucose oxidase, peroxidase, and urease supplied with certified activity and stability.
- Biosensor Development: Components for electrochemical and optical biosensors — glucose oxidase, lactate oxidase, and cholesterol oxidase with defined kinetics.
- Food Safety Testing: Diagnostic-grade enzymes supporting allergen, mycotoxin, and pathogen detection kits in food quality control laboratories.
- Research Immunoassays: Ultra-pure HRP and AP for Western blot, immunohistochemistry, and research-grade immunoassay development with low background signal.
- Lateral Flow Assays: Rapid-test-grade enzymes for point-of-care lateral flow device production — optimized for ambient storage stability.

## Specifications
- Enzyme Name: HRP (EC 1.11.1.7), AP (EC 3.1.3.1), GOx (EC varies by product)
- Activity: 200–400 U/mg (HRP), 1,000+ DEA U/mg (AP)
- Optimal pH: 5.0 – 8.0
- Optimal Temperature: 20°C – 37°C
- Appearance: Lyophilized powder or solution
- Source: Horseradish (HRP), E. coli (AP), Aspergillus (GOx)
- Shelf Life: 12 months (sealed, -20°C or 2–8°C)
- Packaging: 1 g – 1 kg / custom packaging
- MOQ: 1 g (research) / 100 g (bulk)
- Certifications: ISO 9001, ISO 13485, RUO Grade

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