Rapid Monitoring of Working Solution Concentrations for Disinfectants and Sterilizing Agents

Alexander Sergeyevich Zaitsev, Delta-CT LLC

Currently, disinfectants based on quaternary ammonium compounds (QACs), tertiary amines, guanidines, aldehydes, peroxide, and chlorine-containing components are widely used in medicine, industry, and domestic services.

Disinfectants are classified as products potentially hazardous to humans and the environment, which is why it is crucial to comply with all necessary requirements when working with them. No matter how effective the disinfectants used may be, errors in preparation, improper storage, or application of working solutions can not only fail to deliver the desired results but in some cases cause serious harm to service personnel.

In large institutions with chemical laboratories, the concentration of active ingredients (a.i.) in disinfectant working solutions is constantly monitored. In facilities without laboratories, the a.i. content can be controlled using rapid tests.

Monitoring the concentration of a.i. in working solutions of disinfectants is a crucial component of disinfection measures. It not only ensures confidence in effective disinfection but also helps save on disinfectant costs.

Delta-CT LLC develops, manufactures, and sells rapid tests for monitoring the concentration of disinfectant working solutions. These tests are simple and quick to use, provide high accuracy, are relatively low-cost, and do not require expensive instruments, specialized equipment, or highly qualified personnel.

The rapid tests are designed as polymer strips with indicator zones attached. Each indicator zone consists of a matrix containing sorbents (or solid extractants), chromogens, buffers, stabilizers, wetting agents, and masking agents. The indicator strips are supplied in sealed packaging with instructions for use and a reference card displaying the detectable concentrations of active ingredients.

The use of indicator strips ensures confidence in effective disinfection, helps detect product falsification, and eliminates errors in the preparation, use, and storage of disinfectant concentrates and working solutions. The indicator strips have favorable toxicological and hygienic characteristics and are environmentally safe.