Naslov
Cationic Surfactants Quantification In COVID-19 Disinfectants By Potentiometric Surfactant Sensor

Autori
Sakač, Nikola ; Madunić-Čačić, Dubravka ; Jozanović, Marija

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
2nd European Sample Preparation and 1st Green and Sustainable Analytical Chemistry / Psillakis, Elefteria ; Cordero, Chiara - , 2022, 38-38

Skup
2nd European Sample Preparation and 1st Green and Sustainable Analytical Chemistry

Mjesto i datum
Online, 14.04.2022. - 16.04.2022

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Cationic surfactant, COVID-19, Disinfectant, Potentiometric sensor

Sažetak
Surfactants are surface-active agents that reduce the surface tension of the water. There are four main groups: anionic, cationic, nonionic and amphoteric. Cationic surfactants are usually used as disinfectants, especially as agents against bacteria and viruses in industry and everyday home products. Cationic surfactants based on the quaternary ammonium compounds are usually used in product formulations for disinfection in hospitals for hand and surface cleaning against different microorganisms.[1] Recently, during COVID-19 pandemic, the demands for disinfecting agents against SARS-CoV-2 virus have rapidly grown, not only for the professional use in hospitals but also for disinfection in everyday life and work. [2] Cationic surfactants, as active ingredients in disinfectants, have all mentioned advantages, but they have also some important disadvantages. They could cause a cell membrane disintegration, skin irritation and breathing problems.[3] An irresponsible and inadequate handling and use of disinfectants could have a negative impact not only to human, but also to other organisms and environment. For this reason, it is important to establish reliable analytical tools for cationic surfactants monitoring not only in quality control during production process but also in environmental waters. Current methods for cationic surfactants, like two-phase titration, are time consuming ; they use toxic chemicals for extraction, have a lack of reproducibility and require skilled personnel.[4] All this drawback could be overcome by the use of potentiometric surfactant sensors. They are fast, low-cost, easy to operate, they are based on the green chemistry principles since they do not use toxic organic solvents and dramatically reduce the amounts of waste ; and they operate in a broad concentration range.[5] A new 1, 3-dioctadecyl-1H-imidazol-3-ium tetraphenylborate-based surfactant sensor was used for quantification of cationic surfactants in COVID-19 disinfecting agents. Proposed sensor presented a near-Nernstian response for cationic surfactants usually used in product formulations ; with detection limit 0.9x10-6 M and linear concentration range 1.8x10-6 to 1.0x10-4 M. Ten samples of commercial COVID-19 disinfecting agents with declared cationic surfactant content were analyzed. The results were compared with the standard referent method and showed good agreement.

Izvorni jezik
Engleski

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