Thermo Scientific™

Pierce™ Modified Lowry Protein Assay Kit

Catalog number:  23240

 Related applications:

Protein Assays and Analysis

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The Thermo Scientific Pierce Modified Lowry Protein Assay is a stable form of a traditional, 2-component, folin phenol- and copper-based reagent system to measure (A750nm) total protein concentration compared to a protein standard.

Features of Modified Lowry Protein Assay:

Popular method—widely cited in protein research literature
Colorimetric—measure with a standard spectrophotometer or plate reader (750nm)
Stable—uses a modified cupric sulfate-tartrate reagent that is stable at room temperature
Large range—exhibits good linearity in the range 1 to 1500 µg/mL (tested with BSA protein)
Convenient—microplate and cuvette protocols provided with the instructions

The Modified Lowry Protein Assay Kit combines a stabilized formulation of the original Lowry Reagents and the essential Folin-Ciocalteu Phenol reagent in a complete kit for accurately determining protein concentration in a variety of samples types. Although newer protein assay methods provide greater speed and convenience, the Lowry method remains a popular, accurate and useful option for many applications.

Related Products
Pierce™ Modified Lowry Protein Assay Kit
Ampule Breakers

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


Assay Type: Protein Quantitation Assay
Detection Method: Colorimetric
For Use With (Equipment): Microplate Reader, Spectrophotometer
Product Line: Pierce™
Product Size: 530 mL
Technique: Absorbance, Solution-based Detection

Contents & storage

Sufficient For: 480 tube assays or 2400 microplate assays

• Modified Lowry Protein Assay Reagent, 480 mL
• 2N Folin-Ciocalteu Phenol Reagent, 50 mL
• Albumin Standard Ampules, 2 mg/mL, 10 x 1 mL

Store at 4°C.


Manuals & protocols