Thermo Scientific™ Fluoraldehyde™ o-Phthaldialdehyde Reagent Solution (OPA)

Ready-to-use solution of o-phthalaldehyde, a fluorescent, amine-reactive, HPLC pre- or post-column labeling reagent to measure peptides or amino acids (Ex 340nm, Em 455nm).

Thermo Scientific™ Pierce Fluoraldehyde (OPA) Reagent is a ready-to-use solution of o-phthalaldehyde, a fluorescent pre- or post-column derivatization reagent for peptide or amino acid detection and quantitation in HPLC.

Fluoraldehyde Reagent contains OPA (o-phthalaldehyde), which reacts with primary amines of amino acids, peptide and proteins to enable fluorescent detection and quantitation. The reagent that can be used as a protein or peptide assay reagent or as a pre- or post-column detection reagent for amino acid analysis (HPLC). Reaction of OPA with proteins and peptides yields linear results over a wide range of concentrations. The Fluoraldehyde Reagent Solution is supplied ready to use and enables fast quantitation of proteins or peptides in solution.

Highlights:

• For pre- or post-column amino acid derivatization for fluorescent detection and quantitation

• Reacts with all primary amine-containing analytes to yield fluorescent isoindole derivatives

• Provides an accurate measure of both composition and absolute protein-peptide content

• Ideal for work with recombinant proteins and synthetic peptides

• Can be used for fluorescent protein or peptide assay

• Pre-column derivatization mixtures can be injected into LC without any processing

Reagent Properties:

• Formulation: 0.8mg/mL o-phthalaldehyde (OPA) in proprietary buffer, pH 10

• Form: Clear, colorless to slightly yellow liquid

• Reactive toward: Primary amines (–NH2)

• Detection: Fluorescence (excitation/emission = 340nm/455nm)

• Application: Pre- or post-column derivatization for detection by HPLC

Product Type

o-Phthaldialdehyde

Chemical Reactivity

Amine

Product Line

Fluoraldehyde™

Content And Storage

Store under nitrogen at 4°C away from oxidizing reagents and direct sunlight.

Label or Dye

OPA (o-phthaldialdehyde)

Detection Method

Fluorescence

Quantity

945 mL

Form

Liquid

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