Higher COVID-19 Mortality for SCD
A recent post on the Centers for Disease Control and Prevention (CDC) website offered a warning that COVID-19 patients who also have Sickle Cell Disea…
Read More CD-Chex CD34®
CD-Chex CD34 is the only commercially available three-level process control for enumerating CD34 positive cells by flow cytometry. It is an assayed, whole blood control that requires no dilution and provides reference values similar to levels found in bone marrow, cord blood and mobilized patient samples.
Product Description
CD-Chex CD34 is a ready-to-use, positive procedural control for enumerating CD34 positive cells by flow cytometry. Designed to mimic a patient sample, CD-Chex CD34 contains human leukocytes and erythrocytes in a preservative medium with CD34 positive cells having characteristics similar to human hematopoietic progenitor cells. The whole blood control does not need to be diluted and offers 30-day open-vial stability, eliminating the need to track thermal openings. Its long shelf life reduces the number of shipments, associated costs and time spent performing lot-to-lot correlation.
Features
- Only commercially available CD34 control with three levels
- Ready to use control; no dilution required
- Whole blood control mimics patient sample
- Compatible with flow cytometers using ISHAGE protocol and enumeration kits
- 30-day open-vial stability
- 90-day closed-vial stability
Benefits
- Helps clinical laboratories meet quality requirements for CD34+ stem cell quantitation
- Long shelf life reduces the number of shipments and associated costs
- Established assay ranges provide less room for error
- Tests a wider range of CD34 enumeration not offered by alternative controls
- Fewer lot-to-lot correlations save time and resources
- Access to STATS®, a free interlaboratory quality control program with peer group data comparison and online submission
Markers assayed on CD-Chex CD34
CD1a
CD2
CD3
CD4
CD5
CD7
CD8
CD10
CD11b
CD11c
CD13
CD14
CD15
CD16
CD16·CD56
CD19
CD20
CD22
CD23
CD25
CD26
CD30
CD33
CD34 (Abnormal)
CD34 (Progenitor)
CD38+ / CD45+
CD38+ / CD45-
CD41
CD45
CD56
CD57
CD58
CD61
CD64
CD71
CD79a
CD103
CD117
CD138
FMC7
Granulocyte
HLA·DR
Kappa / CD19
Lambda / CD19
Lymphocyte
MPO
Monocyte
TCR α/β
TCR γ/δ
TdT
WBC
cCD3
cLambda
Find a flow cytometry control by marker
Resources
Instructions (IFU)
Product Information
Looking for an older document? Click here for archived assays and certificates.
Quality Pillars for Building Measurement Assurance in Flow Cytometry
The webinar provides updates on the current best quality practices in flow cytometry and case studies for assay, reagent and instrument monitoring.
Ordering Information
| Description | Catalog Number |
|---|---|
| 2 x 1.0 mL (Level 1) | 213337 |
| 2 x 1.0 mL (Level 2) | 213347 |
| 2 x 1.0 mL (Level 3) | 213383 |
| 2 x 1.0 mL (Levels 1 & 2) | 213338 |
| 4 x 1.0 mL (Levels 1 & 2) | 213339 |
Flow Cytometry Products
Based on Streck’s proprietary cell-stabilization technology, we offer a comprehensive line of positive procedural controls and cellular stabilization products for immunophenotyping by flow cytometry. Our unique quality controls provide assay values for both normal and abnormal leukocyte populations and reference values for both intracellular and surface markers. Our cellular stabilization products are designed to preserve samples for extended periods while easing handling concerns and allowing for room temperature storage, cold-chain free shipping and batch processing.
The latest from the blog
Quality Control
Quality Control
Principles of flow cytometry
Flow cytometers are valuable in the laboratory because of their ability to rapidly analyze thousands of normal cells while being able to identify the …
Read More 
Quality Control
Top 4 questions about SICKLEDEX
Streck listened to customers and has made improvements to the Instructions for Use (IFU) for SICKLEDEX®, improving the customer experience by enablin…
Read More