| Possible Cause | Solution |
|---|---|
| Degraded MasterMix | Store at -20 °C, thaw at 2 - 8 °C no longer than 30 min. Vortex and short spin before use. |
| Unverified cycler | Use verified cycler. List of verified cyclers here. |
| Incorrect consumables | Use recommended consumables. List of consumables in device manual. |
| Clear PCR strips on BioRad CFX96 | Use white PCR strips on BioRad CFX96 |
| Incorrect transport medium | Use TE buffer or Nuclease-free water. |
| Air bubbles in PCR mix solution | Spin PCR strip before PCR. |
| Photosensitive MasterMix | Minimize exposure of the MasterMix to light during handling to avoid loss of fluorescent signal intensity. |
|
Combination of parameters with unequal fluorescence on Rotor-Gene Q |
Place the positive control from the problematic PCR kit in well 1 and enable Auto-Gain Optimization, or run the problematic kit in a separate experiment. |
| Possible cause | Solution |
|---|---|
| Incorrect PCR setup | Contact support. Templates can be provided. |
| Incorrect consumables | Use recommended consumables. List of consumables in device manual. |
| Incorrect transport medium | Use TE buffer or Nuclease-free water. |
| Photosensitive MasterMix | Minimize exposure of the MasterMix to light during handling to avoid loss of fluorescent signal intensity. |
| Degraded PCR reagents | Transport the PCR kit on dry ice. |
|
Combination of parameters with unequal fluorescence on Rotor-Gene Q |
Place the positive control from the problematic PCR kit in well 1 and enable Auto-Gain Optimization, or run the problematic kit in a separate experiment. |
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| Possible Cause | Solution |
|---|---|
| Insufficient extraction | Use validated extraction. |
| Unvalidated specimen | Check list of validated specimen in IFU. |
| Mishandling with sample | Check sampling and sample storage in IFU. |
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| Possible Cause | Solution |
|---|---|
| Invalid curves caused by software | Contact support. |
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| Possible Cause | Solution |
|---|---|
| Contamination | Clean workspace. |
| Cross-talk | Contact support. |
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| Possible Cause | Solution |
|---|---|
| Incorrect volume | Add 10 % of elution volume to sample before extraction. |
| Degraded IC | Store at -20 °C, thaw at 2 - 8 °C no longer than 15 min. |
| Insufficient extraction | Use validated extraction. |
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| Possible cause | Solution |
|---|---|
| Possible competition | Normal - still valid result. |
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| Possible cause | Solution |
|---|---|
| Failed extraction | Use validated extraction. Repeat whole analysis. |
| PCR inhibition | Repeat analysis of failed samples. |
| PCR inhibition | When working with GeneProof PathogenFree RNA Isolation Kit, eluate in 100 µl to dilute inhibitors. |
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| Possible Cause | Solution |
|---|---|
| Contamination | Clean workspace. |
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| Possible Cause | Solution |
|---|---|
| Degraded Positive Control | Store at -20 °C, thaw at 2 - 8 °C no longer than 30 min. Vortex and short spin before use. |
| Degraded MasterMix | Store at -20 °C, thaw at 2 - 8 °C no longer than 30 min. Vortex and short spin before use. |
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| Possible Cause | Solution |
|---|---|
| Cross-talk | Set threshold (TH) above curve in HEX. |
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| Possible Cause | Solution |
|---|---|
| Incorrect pipetting | Repeat PCR. Valid calibration curve values - R^2 ≥ 0,98; SLOPE between -3,8 to -3,1. |
Byla pro vás odpověď přínosná?
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| Possible Cause | Solution |
|---|---|
| Incorrectly set threshold | Set threshold lower/set threshold just above negative control |
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