CD-Chex® Plus, Streck’s lysable control for immunophenotyping by flow cytometry, is now available in cap-pierceable vials. The plastic vials increase customer safety by eliminating the risk and hazard of breaking glass. The pierceable caps for closed-vial testing reduce technologist handling of potentially infectious specimens.
     The new packaging configuration is compatible with automated sample-preparation instruments, including BD FACS™ Sample Prep Assistant and Coulter® PrepPlus™.
     CD-Chex Plus determines the accuracy and reproducibility of all the steps involved in the process of immunophenotyping, including red blood cell lysis. Reference values for five subsets of leukocytes include T lymphocytes, B lymphocytes, granulocytes, monocytes, and NK cells. CD-Chex Plus is assayed for normal levels of CD34+ cells found in peripheral blood, and is manufactured from normal human peripheral blood leukocytes and erythrocytes.
    Unlike a fresh whole blood sample, the stability of CD-Chex Plus provides reproducible data when used for daily quality control of immunophenotyping procedures. CD-Chex Plus offers an open-vial stability of 30 days and a closed-vial stability of 90 days.
     STATS®, a free interlaboratory quality-control program, is available for qualifying CD-Chex Plus customers. STATS produces relevant peer-group-comparison reports and graphs with a quick turnaround time. Data can be submitted by mail, fax, or email. The reports include customer data, peer-group averages, and computer-generated Levey-Jennings graphs.

Streck
(800) 843-0912; www.streck.com