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Diagnostic Enzymes
Diagnostic Enzymes (ELISA & Assay Grade) — HRP, AP & GOx for Assay-Ready Performance

High-purity diagnostic enzymes for ELISA, clinical assays, biosensors, and rapid-test manufacturing. Optimized for reliable activity across the recommended pH and temperature ranges. HRP activity 200–400 U/mg; AP activity 1,000+ DEA U/mg. Works best within pH 5.0–8.0 and 20°C–37°C. Supplied as lyophilized powder or solution. Sealed shelf life up to 12 months. Packaging 1 g–1 kg (custom available). MOQ 1 g (research) / 100 g (bulk).

15+
Years experience
80+
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ISO
9001 certified
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Diagnostic Enzymes (ELISA & Assay Grade)

200–400 U/mg (HRP) | 1,000+ DEA U/mg (AP)

ISO 9001ISO 13485RUO GradeAssay-Grade Activity TestingLot-to-Lot ConsistencyFree Samples

Applications

Diagnostic Enzymes (ELISA & Assay Grade) are designed for consistent performance in immunoassays, clinical testing workflows, biosensor systems, and rapid diagnostic manufacturing—supporting stable activity within recommended conditions.

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ELISA Kits

High-purity HRP and alkaline phosphatase conjugates for sandwich and competitive ELISA development with consistent lot-to-lot performance.

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Clinical Diagnostics

Assay-grade enzymes for automated clinical analyzers — glucose oxidase, peroxidase, and urease with certified activity and stability.

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Biosensor Development

Enzyme components for electrochemical and optical biosensors — glucose oxidase, lactate oxidase, and cholesterol oxidase with defined kinetics.

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Food Safety Testing

Diagnostic-grade enzymes for mycotoxin, allergen, and pathogen detection kits used in food quality control laboratories.

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Research Immunoassays

Ultra-pure HRP and AP for Western blot, immunohistochemistry, and research-grade immunoassay development with low background signal.

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Lateral Flow Assays

Rapid-test-grade enzymes for point-of-care lateral flow device manufacturing — optimized for stability at ambient storage conditions.

Product 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

Why Source From Us

Assay-Grade Activity & Stability

Diagnostic enzymes supplied with certified activity targets (HRP 200–400 U/mg; AP 1,000+ DEA U/mg) and stability aligned to pH 5.0–8.0 and 20°C–37°C.

Consistent Lot-to-Lot Performance

Designed for ELISA and immunoassay workflows where reproducibility matters—supporting reliable signal generation and controlled background.

Quality Systems & RUO Compliance

Manufactured and documented under ISO 9001 and ISO 13485 quality systems, supplied as RUO grade for research and assay development.

Flexible Quantities & Packaging

Available from 1 g (research) to 1 kg (bulk) with custom packaging options—ideal for pilot studies, kit development, and production scale-up.

Frequently Asked Questions

Which enzymes are included in Diagnostic Enzymes (ELISA & Assay Grade)?

Our Diagnostic Enzymes program includes HRP (EC 1.11.1.7), alkaline phosphatase (AP, EC 3.1.3.1), and glucose oxidase (GOx) components sourced from horseradish (HRP), E. coli (AP), and Aspergillus (GOx).

What are the recommended optimal pH and temperature ranges?

Use within optimal pH 5.0–8.0 and optimal temperature 20°C–37°C to support consistent assay performance.

How do I interpret the activity specifications for HRP and AP?

HRP is specified at 200–400 U/mg, while AP is specified at 1,000+ DEA U/mg. These values reflect measured activity per mass and help you select appropriate dosing for your assay format.

What is the shelf life and how should I store the enzymes?

Shelf life is 12 months when sealed and stored at -20°C or 2–8°C. Follow the storage guidance provided with your COA/TDS.

Do you offer small quantities for research and larger quantities for production?

Yes. MOQ is 1 g for research and 100 g for bulk orders, with packaging available from 1 g–1 kg and custom packaging options.

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