USAEME-GC/MS Method for Easy and Sensitive Determination of Nine Bisphenol Analogs in Water and Wastewater was written by Kiejza, Dariusz;Kotowska, Urszula;Polinska, Weronika;Karpinska, Joanna. And the article was included in Molecules in 2022.Electric Literature of C13H12O2 The following contents are mentioned in the article:
A new, simple and sensitive method for isolating nine compounds from the bisphenol group (analogs: A, B, C, E, F, G, Cl2, Z, AP) based on one-step liquid-liquid microextraction with in situ acylation followed by gas chromatog.-mass spectrometry was developed and validated using influent and effluent wastewaters. The chemometric approach based on the Taguchi method was used to optimize the main conditions of simultaneous extraction and derivatization. The recoveries of the proposed procedure ranged from 85 to 122%, and the repeatability expressed by the coefficient of variation did not exceed 8%. The method’s limits of detection were in the range of 0.4-64 ng/L, and the method’s limits of quantification ranged from 1.3 to 194 ng/L. The developed method was used to determine the presence of the tested compounds in wastewater from a municipal wastewater treatment plant located in northeastern Poland. From this sample, eight analytes were detected. Concentrations of bisphenol A of 400 ng/L in influent and 100 ng/L in effluent were recorded, whereas other bisphenols reached 67 and 50 ng/L for influent and effluent, resp. The removal efficiency of bisphenol analogs in the tested wastewater treatment plant ranged from 7 to approx. 88%. This study involved multiple reactions and reactants, such as 4,4′-Methylenediphenol (cas: 620-92-8Electric Literature of C13H12O2).
4,4′-Methylenediphenol (cas: 620-92-8) belongs to alcohols. Similar to water, an alcohol can be pictured as having an sp3 hybridized tetrahedral oxygen atom with nonbonding pairs of electrons occupying two of the four sp3 hybrid orbitals. Tertiary alcohols cannot be oxidized at all without breaking carbon-carbon bonds, whereas primary alcohols can be oxidized to aldehydes or further oxidized to carboxylic acids.Electric Literature of C13H12O2
Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts