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ELISA Development moderate

High Background Signal

Symptom
Elevated background noise across the ELISA plate making it difficult to distinguish specific signals from non-specific binding
Common Causes
  1. 1 Insufficient washing between steps
  2. 2 Inadequate number of wash cycles
  3. 3 Missing soak steps during washing procedure
Solutions
  1. 1 Follow proper washing procedure as outlined in ELISA Development Guide page 4
  2. 2 Increase the number of wash cycles
  3. 3 Add a 30-second soak step between washes
Related Video (3)
Thermo Fisher Scientific ★ 88
How to Run an ELISA Assay – Invitrogen Kit Step-by-Step Tutorial
"Step-by-step ELISA protocol demonstrates proper washing and plate handling that directly addresses the insufficient-washing cause of high background."
Bilibili (China-Accessible Mirrors) ★ 80
DuoSet ELISA — Sandwich ELISA Hands-on Protocol (Bio-Techne)
"Hands-on sandwich ELISA protocol showing each wash and development step where background signal problems arise."
Thermo Fisher Scientific ★ 65
How to coat your own plate and run an Invitrogen ELISA kit
"Covers plate coating and running an Invitrogen ELISA kit, giving context for the assay steps involved in background issues."
Source: rndsystems.com ↗
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