Knowledge Base › Troubleshooting Atlas › H&E staining
Chatter of colour intensity between batches
What it looks like
Sections exhibit uneven staining with varying shades of color intensity.
Where it usually appears: Commonly observed between different batches of stained slides.
Likely causes
- Variability in reagent preparation
- Inconsistent application of staining time
- Differences in tissue fixation
- Temperature fluctuations during staining
- Inconsistent slide drying before staining
Immediate checks
- Verify the batch numbers of reagents used
- Check staining times against SOP
- Inspect slides for any visible damage or residue
Corrective action
- Reprepare reagents with consistent protocols
- Standardize staining procedures across batches
- Ensure uniform drying conditions for slides
Preventive action
- Implement routine calibration of equipment
- Train staff on consistent staining techniques
- Regularly monitor reagent quality and storage conditions
This atlas is for educational purposes for laboratory professionals. It does not replace your institutional SOPs, manufacturer instructions, validated protocols or pathologist judgment. Adapt any action to your laboratory and equipment.
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