Improper Temperature Ramp During Probe Hybridization

Symptom

Probe hybridization step was unsuccessful resulting in poor depletion. Target RNA removal is inconsistent or incomplete across replicate samples.

1. 1 Temperature ramp down rate during hybridization is faster than specified 0.1°C/s
2. 2 Thermal cycler does not support controlled slow temperature ramping
3. 3 Hybridization step duration is shorter than required 20 minutes
4. 4 Temperature program not properly configured in thermal cycler

1. 1 Ensure temperature ramp down during probe hybridization occurs at exactly 0.1°C/s
2. 2 Verify hybridization step takes approximately 20 minutes total duration
3. 3 Use thermal cycler with programmable ramp rate capability
4. 4 Test and validate thermal cycler temperature ramping accuracy before critical experiments
5. 5 Monitor actual ramp rate during protocol execution to confirm compliance