Fundamental
Buffer solutions are fundamental throughout biopharmaceutical production, from initial cell culture to final formulation. They maintain pH stability, which is crucial for the activity, stability, and bioavailability of APIs and sensitive biomolecules.
As biopharmaceuticals become more targeted, selecting the right buffer—and a reliable manufacturing partner—is key to success.
Buffer Solutions to go


Applications and Functions in the Production Process
Cell Culture & Upstream Processing: Buffers create optimal environments for cell growth and consistent biomolecule production by stabilizing pH over time.
Downstream Processing & Purification: Buffers are vital during protein separation, purification, and filtration, supporting processes like chromatography, ultrafiltration, and diafiltration.
Final Formulation: In the last stage, buffers stabilize the active ingredient, ensuring product efficacy and shelf life, especially for complex drugs like monoclonal antibodies."
Types of Buffer Solutions and Customization
Biopharmaceutical manufacturers use a variety of buffers—phosphate, acetate, citrate, and Tris—each with specific pH ranges and buffering capacities. The right buffer is chosen based on the active ingredient and process requirements.
CG Pharma & Biotech also develops customized buffer solutions tailored to exact customer specifications for pH, ionic strength, and composition.
CG Pharma & Biotech's
Buffer Portfolio
- Phosphate, acetate, citrate, and Tris buffers
- Custom-made buffers for specific process needs
- Single-use buffer bags in various sizes and configurations
All products are manufactured under strict quality standards, with full traceability and extensive quality testing to ensure optimal performance in biopharmaceutical manufacturing.
Quality Assurance and Compliance
All buffer solutions are produced in EU-GMP certified facilities in Hannover, Germany, under a manufacturing license according to the German Medicines Act.
Each batch is fully traceable, documented, and reviewed by a Qualified Person before release, ensuring compliance with regulatory and industry standards.

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Our Experts For you
Our Experts - Your Partners
Overview of key contacts - supported by many more specialists working for our partners and Clients behind the scenes.
Dr. Frank Velte
Head of CG Pharma & Biotech
+49 (0)511 87803-106
+49 (0)152 3466 7631
frank.velte@cg-chemikalien.de

Marco Regel
Head of Sales & Business Development
+49 (0)511 / 87803-146
+49(0)511 / 2516696
marco.regel@cg-chemikalien.de

Thomas Metzger
Sales & Business Development Manager
+49 (0)511 87803-258
+49 (0)79 483 72 81
thomas.metzger@cg-chemikalien.de
