Thermo Scientific™

SuperSignal™ West Dura Extended Duration Substrate

Catalog number:  34076

 Related applications:

Protein Electrophoresis & Western Blotting

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Thermo Scientific SuperSignal West Dura Extended Duration Substrate is a luminol-based enhanced chemiluminescence (ECL) horseradish peroxidase (HRP) substrate with stable light output for mid-femtogram level detection for western blot analysis.

SuperSignal West Dura Extended Duration Substrate characteristics include:
Sensitivity: mid-femtogram
Stability: 24-hr working solution stability; 1-year kit stability at room temperature
Compatibility: nitrocellulose and PVDF membranes
Signal duration: 24 hours
Recommended primary antibody concentration: 1:1,000–1:50,000 dilution (0.02–1.0 µg/mL)
Recommended secondary antibody concentration: 1:50,000–1:250,000 dilution (4–20 ng/mL)

Compare and learn more about our western blot chemiluminescent substrates ›
View all HRP substrates available ›

SuperSignal West Dura Extended Duration Substrate for HRP is optimized for high sensitivity and long signal duration, making it ideal for cooled CCD camera-based detection systems. Unlike substrates with signals that decline to barely detectable levels in 30–60 minutes, the signal produced with SuperSignal West Dura chemiluminescent substrate is stable for 24 hours, allowing multiple film or camera exposures.

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


Recommended Antibody Concentrations: 2°: 1:50-250K (4-20ng/mL), 1°: 1:5K (0.02- 1µg/mL)
Signal Duration: 24 hr
Detection Method: Chemiluminescent
Product Line: SuperSignal™
Product Size: 200 mL
Sensitivity: Mid-femtogram
Substrate Properties: Chemical Substrate
Substrate Type: HRP (Horseradish Peroxidase) Substrate

Contents & storage

Sufficient For: 25 mini-gel blots; 2000 cm2 of membrane
• Luminol/Enhancer, 100 mL
• Stable Peroxide Buffer, 100 mL

Store at room temperature.


Manuals & protocols