Should a disinfectant be used as a holding solution?

No. The purpose of a holding solution is to keep debris moist on hand instruments until they can be cleaned and sterilized. Holding solutions are not intended to disinfect or sterilize. Presoaking in a disinfectant does not accomplish, much if any, disinfection; it adds unnecessary time and the extra expense of disinfectant use. After presoaking, items still need to be cleaned, wrapped, and heat-sterilized before use in patient care.