High Purity

    Traditional mixing methods, such as nitrogen bubbling or overhead stirring, can cause incomplete reactions, which is crucial for peptide synthesis. An incomplete reaction lowers the coupling efficiency and reduces the synthetic purity.

    To ensure the highest coupling efficiency is achieved during the synthesis, PSI pioneered the “Total Mixing” model and invented the 180° Inversion Mixing Technology. With 180° Inversion Mixing Technology, each individual bead of the resin is mixed with the reagent continuously. Rapid collisions between molecules improve the coupling efficiency and speed up the reaction.

    Using this approach, the average coupling yield can reach 99.5%. This is very important for the synthesis of high purity peptides, and extremely useful for long and difficult peptides. Customers can optimize the reaction by adjusting the mixing speed for the best performance.

Efficient use of Solvent

   Solvent is expensive. So how can you spend only half the solvent, but still get the good results? PSI solved this problem by recycling the “relatively clean” washing solvent for the next wash cycle. This pre-programmed method not only cuts the cost in half, but is also environmentally friendly.

Full Range of Applications

    The PSI catalog includes a full range of peptide synthesizers designed to meet your specific needs. Whether you are looking to synthesize a single milligram for research or multi-kilograms for large scale production, PSI has the solution.

    Currently PSI offers 9 instrument series, and up to 30 individual models, covering all segments of the market. All PSI peptide synthesizers utilize the same 180° Inversion Mixing Technology, which can be easily scaled for the required application. You can even use the same optimized program for both small scale and large scale; the instrument will automatically adjust the necessary parmeters accordingly to ensure the same result.

EX models are rated as Explosion-Proof

Proven Reliability

    PSI Instruments are built for long-term continuous use without disruptions. The main digital servo motor can run for years with no maintenance. PSI instruments are constructed from corrosion resistant stainless-steel, which is highly durable and optimal for maintaining a GMP clean room environment.

   Most PSI software are designed to meet GMP/GLP Regulations. Digital Signature Technology is used for all PSI software to ensure the authenticity and reliability of the data generated in the synthesis.

Professional Service

    PSI’s professional local service teams are ready to solve any issues you may have, day or night.  We also provide free technical support and consulting. Whether you're an expert in peptide synthesis, or just getting started, Peptide Scientific Inc. can always provide you with the services you need.