CD-Chex Select^®

CD-Chex Select is a positive procedural control that includes CD26, CD41, CD57, CD58, CD61, CD64, CD79a, FMC7, MPO, TCR α/β and TCR γ/δ. It is an assayed, whole blood control that features a cap pierceable vial for use with automated flow cytometry sample preparation instruments.

TECHNICAL DOCUMENTS

CD-Chex Select immunophenotyping quality control for flow cytometry

Designed to mimic a patient sample, CD-Chex Select contains human leukocytes and erythrocytes in a preservative medium. The cells in CD-Chex Select possess surface and intracellular antigens detectable with fluorescent monoclonal antibodies by flow cytometry. It is a positive procedural flow cytometry control assayed for 11 CD markers used for immunophenotyping: CD26, CD41, CD57, CD58, CD61, CD64, FMC7, TCR α/β, TCR γ/δ, and intracellular CD79a and MPO. CD-Chex Select is designed to represent normal peripheral blood leukocytes where lymphocytes, monocytes, and granulocytes are distinguishable on the basis of light scatter properties.

For Research Use Only. Not for use in diagnostic procedures.

Features

Assayed for 11 CD markers, including 2 intracellular markers
Cap pierceable vials for use with automated sample preparation instruments
Whole blood control mimics patient sample
Compatible with BD Biosciences and Beckman Coulter flow cytometry systems
30-day open-vial stability
90-day closed-vial stability

Benefits

Helps toward meeting quality requirements for leukemia and lymphoma immunophenotyping
Established assay ranges provide less room for error
Compatibility with automated sample preparation instruments improves laboratory workflow and reduces errors
Provides the user confidence in instrument results
Reduces the need for labs to hold and validate patient samples for use as a control
Access to STATS^®, a free interlaboratory quality control program with peer group data comparison and online submission

Instructions (IFU)

Assays

Certificates

SDS

CD-Chex Select SDS Exemption Letter

STATS

Product Information

CD-Chex Select Brochure

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.

Description	Catalog Number

2 x 3.0 mL (Sample 1, Sample 2)	213554
4 x 3.0 mL (Sample 1, Sample 2)	213555

View the lot release schedule

Order CD-Chex Select today

Request a quote

International customers find a distributor

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.

View all