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Quality control of disinfectants

Metrohm AG

Simple titration methods to determine hydrogen peroxide, hypochlorite, and sodium chloride

7 Jul 2020
Georgina Wynne Hughes
Editorial Assistant

Industry news

Frequent handwashing using water and soap and stringent use of disinfectants are fundamental in the ongoing fight to curb the spreading of the Coronavirus. Metrohm’s latest Application Notes describe titration methods for manufacturers of disinfectants to determine the concentration of key components in their product applying titration methods.

Hydrogen peroxide content as per ASTM D2180

Peroxides are used for disinfection and water treatment purposes due to their antiseptic properties. Peroxides, perborates, and percarbonates can be easily determined by titration. Metrohm‘s Application Note describes two titration methods for peroxide analysis: ASTM D2180 for concentrated hydrogen peroxide solutions, and a second method for trace determination of hydrogen peroxide, suitable for concentrations as low as 0.4 mg/L.

Hypochlorite and sodium chloride in disinfectant

Metrohm‘s Application Note describes a reliable method to determine the hypochlorite and sodium chloride content in disinfectants by two subsequent argentometric titrations in the concentration range recommended by the WHO (1000 mg/L to 5000 mg/L NaOCL, 200 g/L NaCl).

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TitrationTitration is an analytical technique for determining substance concentration in a solution. For titration consider a manual or automated system, volumetric or coulometric reagent addition and indication by a potentiometer, spectrometer, turbidometer or by the Karl Fischer method. Other features of titration to consider include burettes, reagents, concentration range, reaction time and autosamplers.Quality ControlQuality control is needed in all production processes. Quality control is a monitoring procedure or set of procedures that are put in place to ensure that a manufactured product adheres to a defined set of quality criteria. WHOCoronavirusCoronaviruses are a large family of viruses that can cause illnesses ranging from the common cold to more severe diseases like COVID-19. Research into the biology, transmission, and treatment of coronaviruses has become a global priority, particularly since the emergence of SARS-CoV-2. Understanding the virus�s structure and behavior is essential for developing vaccines, diagnostics, and antiviral treatments. Explore our peer-reviewed product directory to discover the latest research tools, diagnostic tests, vaccines, and treatments for coronavirus, compare products, read reviews, and receive pricing directly from manufacturers.

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Quality control of disinfectants