PB-MAX™ Karyotyping Medium This product, and/or its packaging, incorporates one or more environmental/green features. Click on this icon to learn more.

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Gibco® PB-MAX™ Karyotyping Medium is a fully-supplemented medium developed for the short-term culture of peripheral blood lymphocytes for cytogenetic studies and in vitro diagnostic procedures.

Gibco® PB-MAX™ Karyotyping Medium features:

• Ready-to-use format
• Quality and performance testing
• Classic formulation

Ready-to-use format
Gibco® PB-MAX™ Karyotyping Medium is a frozen, 1X medium, ready to use upon thawing. No supplementation is required. Thawed medium can be stored at 2–8°C for up to 14 days.

Quality and performance testing
Every lot of Gibco® PB-MAX™ Karyotyping Medium is performance tested by a certified US reference cytogenetics laboratory to ensure consistently superior performance. Peripheral blood lymphocytes from a normal adult donor are cultured for 72 hours in Gibco® PB-MAX™ Karyotyping Medium before measuring the mitotic index and chromosome banding resolution. In addition, each lot is tested for sterility, pH, osmolality, and mycoplasma.

Classic formulation
Gibco® PB-MAX™ Karyotyping Medium is an optimized RPMI 1640 medium, supplemented with Fetal Bovine Serum (FBS), L-glutamine, and phytohemagglutinin (PHA). Gibco® PB-MAX™ Karyotyping Medium is based on formulations referenced in the Association for Cytogenetic Technologists Laboratory Manual for the culture of peripheral blood lymphocytes for cytogenetic analysis. The complete formulation is available.

Product Use
For in vitro diagnostic use.

cGMP Manufacturing and Quality System
Gibco® PB-MAX™ Karyotyping Medium is manufactured at a cGMP compliant facility, located in Grand Island, New York. The facility is registered with the FDA as a medical device manufacturer and is certified to ISO 13485 standards.


Cell Type: Lymphocytes
Form: Liquid
Glutamine: L-Glutamine
Product Line: PB-MAX™
Product Size: 100 mL
Serum Level: Standard Serum
Species: Human
Green Features: Sustainable packaging
Shipping Condition: Dry Ice

Contents & storage

Storage conditions: -5 to -20°C. Protect from light.
Shipping conditions: Frozen
Shelf life: 12 months from date of manufacture


Manuals & protocols