Medical Device

Q. Can I use pH paper to confirm cleaning and rinsing of labware to comply with lab accreditation requirements?

A. If you are going to use pH strips to comply with lab accreditation requirements, you need to verify that your detergents are not interfering with the strips and papers. Detergents and surface active agents can interfere with some pH paper by causing a decrease of several pH units in reading. Please test any pH paper you intend to use …

Q. I am developing a new cleaning process to replace the process we are using for cleaning glass slides before applying Silane coating. We are using strong acid to clean glass slides. I want to use a process where I first use basic aqueous solution, then use DI water to rinse, followed by acidic solution to chelate away metal ions. Then we’ll do DI water rinse, air dry, and finally use oxygen plasma to final clean the glass slide. What acidic aqueous solution and basic aqueous solution can you suggest?

We have a glass wash machine and use Alcojet for it. We would like to know if you need to include a neutralizing agent like Citrajet as part of the wash cycle (acid rinse)? Alcojet® Low Foaming Powdered Detergent is what we would call free-rinsing, meaning it rinses completely away with water without rinse aids.

Q. We are looking for cleaners that are minimally toxic or non-toxic to insects while effectively cleaning and removing biological debris, sugar, and pathogens.

A. Thank you for your request for a detergent that is minimally or non-toxic to insects. We regret to inform you that we do not have insect toxicity studies for our detergents. The mammalian and systemic toxicity information that we do have, however, shows that Liquinox® is very low in toxicity.

Q: We’re looking for a detergent solution like Liqui-Jet™2 Instrument Detergent by Steris. We need it to clean the drain in our microbiology autoclave, so it should be able to target any media or agar that may be clogging the drain.…