Thermo Scientific™

Pierce™ Detergent Compatible Bradford Assay Kit

Catalog number: 23246
Thermo Scientific™

Pierce™ Detergent Compatible Bradford Assay Kit

Catalog number: 23246
Catalog Number
Unit Size
300 test tube assays
Price (USD)
Price: 192.00
Your Price:
Catalog NumberUnit SizePrice (USD)AvailabilityQuantity
23246300 test tube assays
Price: 192.00
Your Price:
Product Overview
Citations & References
Additional Information
The Pierce Detergent Compatible Bradford Assay Kit is a quick and ready-to-use modification of the well-known Bradford Coomassie dye-binding, colorimetric method for total protein quantitation. Unique additives to the Bradford Reagent make it compatible with up to 1% or higher of detergents and lysis reagents that are commonly used in life science research, including Triton X-100 and NP-40.

Compare all available Bradford assays ›

Flexible—compatible with samples both with and without detergent
Sample volume—requires only 10 µL for microplate procedure
Colorimetric—measure with a standard spectrophotometer or plate reader at 595 nm
Ready-to-use—single reagent; no working reagent preparation required
Assay time—10-min incubation at room temperature
Assay range—detects protein concentration in the range of 2 to 1500 µg/mL

Similar to the Bradford method, Coomassie dye binds protein in an acidic medium causing an immediate shift in absorption maximum from 465 nm to 595 nm with a concomitant color change from green to blue. In addition, the assay is complete in just 10 minutes.

The protein assay can be performed in either test tube or microplate format. The standard working range is 100–1500 µg/mL with up to 1% detergent (or higher in some cases). Protein concentrations are estimated by reference to absorbances obtained for a series of standard protein dilutions, typically bovine serum albumin (BSA), which are assayed alongside the unknown samples. Because the color response with Coomassie dye is non-linear with increasing protein concentration, a standard curve must be completed with each assay. Standards can be used directly without preparing them in the same detergent found in the test samples.

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For Research Use Only. Not for use in diagnostic procedures.


Bradford Assay
Detection Method
Product Line
Product Type
Protein Quantitation Assay
Not Target-Specific
For Use With (Application)
Solution-based Detection, Absorbance
For Use With (Equipment)
Spectrophotometer, Microplate Reader
300 Test Tube Assays

Contents & Storage

Detergent Compatible Bradford Assay Reagent, 450 mL, store at 4°C
Albumin Standard Ampules, 10 x 1 mL, store at room temperature