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Whole Blood Total RNA Extraction Kit is a rapid silica-column based purification system designed for the isolation of high-quality total RNA directly from whole blood samples.
Unlike conventional methods requiring red blood cell lysis and leukocyte separation, this kit enables direct RNA extraction from whole blood, significantly reducing sample handling time and minimizing RNA degradation.
Most importantly, the kit has been experimentally validated for RNA extraction from anticoagulated whole blood stored at -80°C for 75 days, making it highly suitable for:
Biobanking samples
Retrospective clinical studies
Molecular diagnostics
Gene expression analysis
RT-PCR and RNA sequencing

Validated for whole blood samples stored at -80°C for up to 75 days.
High-quality RNA can be recovered directly from frozen anticoagulated whole blood without prior leukocyte isolation.
Traditional blood RNA extraction workflows require:
Red blood cell lysis
Leukocyte separation
Multiple centrifugation steps
Our kit uses a direct lysis strategy, eliminating these labor-intensive procedures.
The kit is suitable for:
Whole blood
Frozen blood
Bone marrow aspirates
making it a versatile solution for hematology and oncology research.
Purified RNA demonstrates:
High purity
Excellent integrity
Strong RT-qPCR performance
RNA sequencing compatibility
Ideal for downstream applications including:
RT-PCR
RT-qPCR
RNA-Seq
Gene expression profiling
RNA purification can be completed in only:
20–40 minutes
compared with:
60–120 minutes for traditional leukocyte-based methods.

Experimental results demonstrated:
· Successful RNA purification
· High RNA purity
· Excellent electrophoresis performance
· Positive RT-qPCR amplification
· Reliable downstream application compatibility
These results confirm the suitability of the kit for long-term frozen blood storage applications.

To evaluate long-term frozen blood compatibility, anticoagulated whole blood samples were stored at -80°C for 75 days.
| Feature | Traditional Methods | Whole Blood Total RNA Extraction Kit |
|---|---|---|
| RNA Extraction from -80°C Frozen Blood | Limited | ✔ Yes |
| Long-Term Frozen Blood Validation | Rarely Reported | ✔ Validated (75 Days) |
| RBC Lysis Required | Yes | No |
| Leukocyte Separation | Yes | No |
| Processing Time | 60–120 min | 20–40 min |
| Bone Marrow Compatible | Limited | ✔ Yes |
| RT-PCR Ready | Yes | ✔ Yes |
| RNA Sequencing Compatible | Yes | ✔ Yes |
Gene expression analysis
Biomarker discovery
Transcriptomics
Frozen biobank samples
Longitudinal studies
Clinical specimen analysis
RT-PCR
RT-qPCR
RNA Sequencing
cDNA synthesis
NGS library preparation

Blood Total RNA Kit Cat. No. | 5 preps FR5201005 | 50 preps FR5201050 |
Spin Columns 2 ml Collection Tubes Buffer L9 Buffer WA (concentrate) Buffer WBR (concentrate) RNase-free Water Instructions | 5 5 6 ml 1.9 ml 1.5 ml 1.5 ml 1 copy | 50 50 55 ml 12 ml 12 ml 2 ml×2 1 copy |
1. Buffer L9 can be transported at room temperature, please store at 2~8 ℃ after receiving the product.
2. Other reagents and components are stored at room temperature (0~30 ℃), the performance of the product can be maintained without significant change within two years; if the product is stored at 2~8 ℃, the validity period of the product can be extended to more than two years (the product stored at 2~8℃ should be restored to room temperature before use).
Yes. The kit is validated for anticoagulated whole blood stored at -80°C.
No. Direct RNA extraction from whole blood is supported.
No. The workflow eliminates the need for leukocyte isolation.
Yes. The kit is compatible with bone marrow specimens.
RT-PCR, RT-qPCR, RNA-Seq, transcriptomics, viral RNA detection, fusion gene analysis, and gene expression profiling.
Approximately 20–40 minutes.
Yes. The purified RNA is fully compatible with RNA-Seq workflows.
Unlike most commercial blood RNA extraction kits, this product has been experimentally validated for direct RNA extraction from anticoagulated whole blood stored at -80°C for 75 days, while maintaining excellent RT-qPCR performance and RNA quality.
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