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Western Blot (Sigma Protocol) moderate

Inactive Chemiluminescent Detection

Symptom
No signal detected when using chemiluminescent detection method despite proper procedure
Common Causes
  1. 1 Film development solution has expired
  2. 2 Chemiluminescent substrate prepared incorrectly
  3. 3 Fresh H2O2 not added to substrate when required
Solutions
  1. 1 Use fresh film development solutions
  2. 2 Follow substrate manufacturer's instructions carefully
  3. 3 Ensure fresh H2O2 is added if required by substrate protocol
Related Video (3)
Cell Signaling Technology ★ 85
Western Blot Troubleshooting Guide
"Directly addresses Western blot troubleshooting including detection failures, which is the core issue in this failure case"
Bilibili (China-Accessible Mirrors) ★ 78
Western blot full protocol: Protein extraction to chemiluminescence
"Covers complete workflow including chemiluminescence detection step where expired film development solution would cause signal loss"
Bilibili (China-Accessible Mirrors) ★ 72
Western Blot — Full Protocol Walkthrough (Bio-Techne)
"Comprehensive protocol including ECL detection phase where reagent quality directly impacts chemiluminescent signal generation"
Source: sigmaaldrich.com ↗
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