In Vitro Diagnostics (IVD) refers to products and services used to obtain clinical diagnostic information by testing human blood, tissues, or secretions outside the body. IVD provides about 80% of clinical diagnostic information and has become an increasingly important component of human disease prevention, diagnosis, and treatment. The components of diagnostic reagent kits are primarily in liquid form, such as reagents and standards. These components are susceptible to microbial contamination and require maintenance of a specific pH. To improve the storage stability of these kits, preservatives and pH buffers must be added during production. Henning provides a range of high-quality preservatives and high-performance pH buffers for IVD applications, ensuring the accuracy, precision, repeatability, reproducibility, low detection limits, and sensitivity of diagnostic reagents.