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.

TECHNICAL DOCUMENTS

CD-Chex CD34 stem cell enumeration flow cytometry control

CD-Chex CD34 is a ready-to-use, positive procedural control for enumerating CD34 positive cells by flow cytometry. Designed to resemble 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 resembles 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

cCD3

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

cLambda

FMC7

Granulocyte

HLA·DR

Kappa / CD19

Lambda / CD19

Lymphocyte

Monocyte

MPO

TCR α/β

TCR γ/δ

TdT

WBC

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Instructions (IFU)

Assays

Certificates

SDS

CD-Chex CD34 SDS Exemption Letter

STATS

Product Information

CD-Chex CD34 Brochure

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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

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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.

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