Results 31 to 40 of about 12,280 (226)

Plume Rise from a Stack Based on the Volkov Formula

open access: yesTehnički Glasnik
Plume rise from most sources is an important factor in determining ground-level concentration of air pollutants. Various attempts have been done to compute plume rise from stationary sources.
P. Jafari Shalkouhi   +3 more
doaj   +1 more source

A Vortex-Assisted Microextraction Based On Deep Eutectic Solvents for Determination of Four Parabens from Cosmetic Baby Oils and Optimization by Box-Behnken Design

open access: yesDüzce Üniversitesi Bilim ve Teknoloji Dergisi, 2020
This study presents microextraction and determination of four parabens by vortex-assisted microextraction based on deep eutectic solvents (DESs) in cosmetic baby oils.
Sezen Sivrikaya
doaj   +1 more source

Reactions to synthetic membranes dialyzers: Is there an increase in incidence? [PDF]

open access: yes, 2019
Background: Reactions to dialyzers used in dialysis have been reported more frequently in recent years. Evidence, however, shows that the reaction rate has remained stable for years.
Carriazo, Sol   +8 more
core   +2 more sources

A survey of parabens in commercial baby wipes from Brazil and estimation of daily exposure

open access: yesQuímica Nova
Several studies have shown endocrine-disrupting effects of parabens. Parabens are a group of antimicrobials used as preservatives in a wide variety of products, mainly in personal care products.
Bruno Alves Rocha   +4 more
doaj   +1 more source

Interaction between Different Pharmaceutical Excipients in Liquid Dosage Forms—Assessment of Cytotoxicity and Antimicrobial Activity

open access: yesMolecules, 2018
Nowadays, the safety of parabens as pharmaceutical preservatives is debated. Recent studies investigated their interference with the oestrogen receptors, nevertheless their carcinogenic activity was also proved.
Dániel Nemes   +11 more
doaj   +1 more source

Exposure Profile and Characteristics of Parabens and Alkylphenols in Plasma among Rural Adults in Central China

open access: yesToxics, 2023
Parabens and alkylphenols pose serious hazards to human health, yet there are few studies on their exposure profiles and health risks in rural Chinese populations.
Qian Gao   +7 more
doaj   +1 more source

Fitting Nonlinear Calibration Curves: No Models Perfect [PDF]

open access: yes, 2017
The study of the calibration of a series of compounds of environmental concern (six perfluoroalkyl compounds (perfluorooctane sulfonic acid and five perfluoroalkyl carboxylic acids), three preservatives (methyl-, ethyl- and propylparabens) and the ...
García Asuero, Agustín   +2 more
core   +1 more source

The potential for estrogen disrupting chemicals to contribute to migration, invasion and metastasis of human breast cancer cells [PDF]

open access: yes, 2019
Estrogen disrupting chemicals are environmental compounds which mimic, antagonize or interfere in the action of physiological estrogens. They occur naturally (plant phytoestrogens) but the majority are man-made compounds, which, through their use in ...
Darbre, Philippa D.
core   +1 more source

Review of the Integrated Approaches for Monitoring and Treating Parabens in Water Matrices

open access: yesMolecules
Due to their antibacterial and antifungal properties, parabens are commonly used as biocides and preservatives in food, cosmetics, and pharmaceuticals.
Denga Ramutshatsha-Makhwedzha   +1 more
doaj   +1 more source

Programmable Low-Pressure Chromatographic Sub-90 s Assay of Parabens in Cosmetics with Post-Column Chemiluminescence Detection

open access: yesSeparations, 2023
This work describes a new programmable low-pressure chromatography method with post-column chemiluminescence (CL) detection for the rapid and cost-effective determination of four parabens in cosmetic products.
Margarita Barbatsi, Anastasios Economou
doaj   +1 more source

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