A large amount of buffers are needed in the downstream purification process of biopharmaceuticals. The accuracy and reproducibility of the buffers have a great impact on the protein purification process. The online dilution and online dosing system can combine a variety of single-component buffers. The mother liquor and the diluent are mixed online to obtain the target solution. The product is based on scientific knowledge, and the quality comes from the concept of design (QbD). Through the real-time online (Real in time) monitoring and control of the two chemical indicators, the key quality attributes (CQA) of the product (CQA), pH and conductivity during the production process, Ensure to provide buffers of stable and uniform quality for downstream processes to help biopharmaceutical companies' parameter release purposes. The traditional liquid preparation process requires a large number of tanks and a large volume. IVEN bringing customers a brand-new technical experience, reducing the footprint of the buffer dosing in the purification process stage, and reducing the pre-investment and post-production and operation costs. , Improve production efficiency, ensure the critical process parameters (CPP) of the buffer and its traceability, and ultimately improve the quality of medicines.