Pharmaceutical

Q. What does “detergent is the last to leave the equipment surface” after rinsing mean? This seems like a broad statement, can it be supported by literature/documentation?
A. The only source of “detergent last to rinse” that I am aware of is based on the physical behavior of surface active agents and the interchangeable use of the word detergent and surfactant in common usage. More properly you should say the surfactant is the last to rinse. Learn More about Surfactant.

Q: How can I remove a radioactive lutetium drug residue? A: Lu 177 (lutetium) and other radioactive metal drug residues can be tough to remove. We recommend warm or hot 2-3% dilution of Citranox (20 – 30mL/L) followed by a thorough water rinse to clean steel, plastic and other hard surfaces to decontaminate radioactivity.

Learn the proper way to make a 1% detergent solution by following these four simple steps. To make a 2% detergent solution, simply double up the amount! Alconox Inc. aqueous detergents are sold in concentrate. To use, dilute according to package instructions. Most Alconox Inc. products require only a 1-2% dilution for optimal use.

We’ve been a long time user of Solujet for our CIP system, and love it! I recently passed by your booth at a tradeshow and you set me up with a sample of Keylajet when we mentioned some extra viscous waxy residue we were having trouble removing. We were hoping to stay with our CIP method. It worked great! Can you relay more info?

Q: Many of your Tergazyme related TechNotes and recommendations include warm temperatures. Warm temperatures can still denature some hormones and proteins thus causing cleaning problems. I would probably start with a cool (room temp or cooler) rinse (water). Then move to the 1-2% cleaning solution in warmer temperatures. Agreed?