Examinando por Autor "Vargas Espinal, Maribel Juvenalda"

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    La adulteración y calidad desinfectante del alcohol expendido en oficinas farmacéuticas y otros establecimientos comerciales, Lima – Cercado, setiembre 2020
    (Universidad Privada Norbert Wiener, 2022-05-19) Vargas Espinal, Maribel Juvenalda; Laureano Peña, Haydee Sonia; Llahuilla Quea, José Antonio
    The methodology used consisted of a random probabilistic sampling of 32 samples of 96° ethyl alcohols in 1 L bottles sold in pharmaceutical offices (sample B: 15 samples from drugstores and pharmacies) and other commercial establishments (sample A: 17 samples from small shops, shopping centers, and street vendors). Methanol was identified using the chromotropic acid reaction method. A sensory evaluation was conducted according to Peruvian Technical Standard 211.007:2014. The determination of physicochemical parameters (pH, alcoholic strength, and density) was performed according to the United States Pharmacopeia and Peruvian Technical Standard 319.229:2014. Disinfectant effectiveness was determined in accordance with the UNE-EN 1040 method for chemical antiseptics and disinfectants. The results identified positive methanol results in 13.3% of the B samples and 11.76% of the A samples. The alcoholic strength showed results lower than 96°, with an average of 93 in the B samples and 79 in the A samples. Additionally, the disinfectant effectiveness in the sample with the lowest alcoholic strength for group B showed a bactericidal activity greater than 99.99% at 30 seconds of contact against the microorganisms S. aureus and P. aeruginosa, while for group A, no bactericidal activity was observed.