140-66-9 Archives - Alcohols-buliding-blocks

Cas: 140-66-9 was involved in experiment | Journal of Environmental Chemical Engineering 2021

4-tert-Octylphenol(cas: 140-66-9) has been used as a reference standard for the determination of the analyte in water samples using ultra-high-performance liquid chromatography/tandem mass spectrometry (UHPLC/MS/MS).Recommanded Product: 140-66-9

Lopez-Velazquez, Khirbet;Guzman-Mar, Jorge L.;Montalvo-Herrera, Teresa J.;Mendiola-Alvarez, Sandra Y.;Villanueva-Rodriguez, Minerva published 《Efficient photocatalytic removal of four endocrine-disrupting compounds using N-doped BiOBr catalyst under UV-Vis radiation》. The research results were published in《Journal of Environmental Chemical Engineering》 in 2021.Recommanded Product: 140-66-9 The article conveys some information:

A mixture of four endocrine-disrupting compounds (EDCs [17β-estradiol, 17α-ethinylestradiol, bisphenol A, and 4-tert-octylphenol]) was removed from aqueous solution using the N-doped BiOBr semiconductor (N = 10 and 20 wt%) easily prepared via microwave-assisted solvothermal synthesis. The N₂₀BiOBr semiconductor showed the highest photocatalytic activity achieving the complete degradation of the EDCs, and 53.5% of mineralization in 240 min. Moreover, the toxicity of the mixture was reduced to moderate levels (from 90 to 47.5% of inhibition of the bioluminescence of V. fischeri). The high efficiency of N₂₀BiOBr for EDCs removal was attributed to the increase of the sp. surface area and the effective separation of photogenerated charges by effect of N incorporation. The main photogenerated species involved in the degradation of the pollutants were the superoxide radicals (O^·-2) and photo-holes (h+), and a possible photocatalytic activation mechanism was proposed where suggests the active participation of oxygen vacancies. Addnl., N₂₀BiOBr demonstrated excellent chem. and photocatalytic stability after four reuse cycles. Therefore, doping BiOBr with N constitutes a suitable and efficient strategy for the photocatalytic removal of a mixture of hazardous pollutants such as EDCs in water, with potential application in tertiary decontamination processes. The experimental procedure involved many compounds, such as 4-tert-Octylphenol (cas: 140-66-9) .

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Application of cas: 140-66-9 | Alloisio, Marina et al. published an article in 2022

Safety of 4-tert-Octylphenol《Electrospun alginate mats embedding silver nanoparticles with bioactive properties》 was published in 2022. The authors were Alloisio, Marina;Dodero, Andrea;Alberti, Stefano;Vicini, Silvia;Castellano, Maila, and the article was included in《International Journal of Biological Macromolecules》. The author mentioned the following in the article:

Polysaccharide-based composites embedding silver nanoparticles (AgNPs) represent a promising alternative to common antimicrobial materials because of the effective, broad-spectrum biocidal properties of AgNPs combined with the biocompatibility and environmental safety of the naturally occurring polymeric component. In this work, AgNPs stabilized with alginate chains (Alg@AgNPs) were successfully synthesized in situ within the polysaccharide solution through a wet chem. approach carried out at different concentrations of the silver salt precursor. Once obtained, the aqueous suspensions were electrospun to prepare non-woven membranes, showing a homogeneous nanostructured texture (with fiber diameter between 100 and 150 nm), which was found to be influenced by the size (between 20 and 35 nm) of the embedded metal nanoparticles. The biocidal potential of the nanocomposite mats was preliminarily tested against Gram-neg. E. coli. The results showed that the antimicrobial response of the investigated samples occurred within a day of incubation and can be observed for AgNPs content in the polysaccharide fibers far below the nanomolar regime. The experimental procedure involved many compounds, such as 4-tert-Octylphenol (cas: 140-66-9) .

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Application of cas: 140-66-9 | Lowe, Charles N. et al. published an article in 2021

SDS of cas: 140-66-9《Chemical Characterization of Recycled Consumer Products Using Suspect Screening Analysis》 was published in 2021. The authors were Lowe, Charles N.;Phillips, Katherine A.;Favela, Kristin A.;Yau, Alice Y.;Wambaugh, John F.;Sobus, Jon R.;Williams, Antony J.;Pfirrman, Ashley J.;Isaacs, Kristin K., and the article was included in《Environmental Science & Technology》. The author mentioned the following in the article:

Recycled materials are found in many consumer products as part of a circular economy; however, the chem. content of recycled products is generally uncharacterized. A suspect screening anal. using two-dimensional gas chromatog. time-of-flight mass spectrometry (GC x GC-TOFMS) was applied to 210 products (154 recycled, 56 virgin) across seven categories. Chems. in products were tentatively identified using a standard spectral library or confirmed using chem. standards A total of 918 probable chem. structures identified (112 of which were confirmed) in recycled materials vs. 587 (110 confirmed) in virgin materials. Identified chems. were characterized in terms of their functional use and structural class. Recycled paper products and construction materials contained greater numbers of chems. than virgin products; 733 identified chems. had greater occurrence in recycled compared to virgin materials. Products made from recycled materials contained greater numbers of fragrances, flame retardants, solvents, biocides, and dyes. The results were clustered to identify groups of chems. potentially associated with unique chem. sources, and identified chems. were prioritized for further study using high-throughput hazard and exposure information. While occurrence is not necessarily indicative of risk, these results can be used to inform the expansion of existing models or identify exposure pathways currently neglected in exposure assessments. And 4-tert-Octylphenol (cas: 140-66-9) was used in the research process.

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New progress of cas: 140-66-9 | Environmental Science and Pollution Research 2021

4-tert-Octylphenol(cas: 140-66-9) is a common environmental pollutant showing weak estrogenic effects.Electric Literature of C14H22O It has been shown to cause harm to vertebrate male reproductive systems.

Silva, Lidia Gaudencio Ribeiro;Costa, Elizangela Pinheiro;Starling, Maria Clara Vieira Martins;dos Santos Azevedo, Taiza;Bottrel, Sue Ellen Costa;Pereira, Renata Oliveira;Sanson, Ananda Lima;Afonso, Robson Jose Cassia Franco;Amorim, Camila C. published 《LED irradiated photo-Fenton for the removal of estrogenic activity and endocrine disruptors from wastewater treatment plant effluent》 in 2021. The article was appeared in 《Environmental Science and Pollution Research》. They have made some progress in their research.Electric Literature of C14H22O The article mentions the following:

The goal of this work was to evaluate the performance of the LED irradiated photo-Fenton process on the removal of (i) estrogenic activity and (ii) seven endocrine disruptors (EDs) (4-octylphenol, 4-nonylphenol, bisphenol A, estrone, 17β-estradiol, 17α-ethinylestradiol, and estriol) from real wastewater treatment plant effluent (WWTPE). EDs are a group of contaminants of emerging concern present in WWTPE and which may be recognized by hormone receptors, thus harming animal and human health. The yeast estrogenic screen test (YES) was used to quantify estrogenic activity promoted by EDs in WWTPE samples before and after photo-Fenton treatment. Tests were performed following a factorial design with different iron (20, 40, and 60 mg L-1) and hydrogen peroxide (100, 200, and 300 mg L-1) concentrations in a laboratory scale LED photoreactor (λ = 455 nm, 1.5 L, 1.6 x 10-6 Einstein s-1). EDs were analyzed by gas chromatog. coupled to a mass spectrometer. Control experiments consisted of Fenton process, iron only, LED irradiation only, and H2O2 only. Optimum exptl. conditions for LED photo-Fenton resulted in 62% removal of estrogenic activity and 59% mineralization. In addition, treated WWTPE was not toxic to Aliivibrio fischeri and more than 80% of EDs were removed during LED irradiated photo-Fenton. Although Fenton process showed similar efficiency to that obtained by LED photo-Fenton, a higher volume of sludge was generated in the dark. Finally, results obtained in this study confirm the applicability of LED irradiated photo-Fenton process for improving the quality of WWTPE as an alternative to solar photo-Fenton in case solar radiation is not available, thus reducing hazards associated to WWTPE reuse or discharge. And 4-tert-Octylphenol (cas: 140-66-9) was used in the research process.

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Cas: 140-66-9 was involved in experiment | Environmental Pollution (Oxford, United Kingdom) 2021

Hu, Junjie;Liu, Jinhuan;Lv, Xiaomei;Yu, Lili;Lan, Shanhong;Li, Yanliang;Yang, Yan published 《Assessment of epigenotoxic profiles of Dongjiang River: A comprehensive of chemical analysis, in vitro bioassay and in silico approach》 in 2021. The article was appeared in 《Environmental Pollution (Oxford, United Kingdom)》. They have made some progress in their research.Product Details of 140-66-9 The article mentions the following:

This research explored the occurrence, epigenetic toxic profiling and main toxic pollutants of POPs in surface water of Dongjiang River, southern China. The concentrations of selected POPs including polycyclic aromatic hydrocarbons (PAHs), endocrine disrupting chems. (EDCs), phthalate esters (PAEs) and polybrominated di-Ph ethers (PBDEs) of surface water from 18 sites were investigated. ∑16PAHs and ∑4EDCs were at a moderate level, while ∑6PAEs and ∑6PBDEs had low pollution levels. PAHs, EDCs and PAEs showed higher concentrations in dry season than those in wet season, and the loading of selected POPs in tributaries was higher than those in mainstream due to intensive manufactures and lower runoff volume Moreover, activities of DNA methyltransferase (DNMT)1, histone deacetylase (HDAC2, HDAC8) were confirmed to be sensitive indicators for epigenetic toxicity. The DNMT1-mediated epigenetic equivalency toxicity of organic extracts in Dongjiang River were more serious than those of HDAC2 and HDAC8. Correlation anal. shown binding affinity between POPs and DNMT1, HDAC2 and HDAC8 could be regarded as toxic equivalency factors. Risk assessment suggested that 4-nonylphenol and bisphenol A were the largest contributors to epigenetic risk. This study is the first attempt to quantify epigenetic toxicity and epigenetic risk evaluation of river water.4-tert-Octylphenol (cas: 140-66-9) were involved in the experimental procedure.

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Cas: 140-66-9 | Huang, Shiyang et al. made new progress in 2021

4-tert-Octylphenol(cas: 140-66-9) is a common environmental pollutant showing weak estrogenic effects.HPLC of Formula: 140-66-9 It has been shown to cause harm to vertebrate male reproductive systems.

Huang, Shiyang;McDonald, James A.;Kuchel, Rhiannon P.;Khan, Stuart J.;Leslie, Greg;Tang, Chuyang Y.;Mansouri, Jaleh;Fane, Anthony G. published 《Surface modification of nanofiltration membranes to improve the removal of organic micropollutants: Linking membrane characteristics to solute transmission》 in 2021. The article was appeared in 《Water Research》. They have made some progress in their research.HPLC of Formula: 140-66-9 The article mentions the following:

Surface modification of nanofiltration (NF) membranes has great potential to improve the removal of organic micropollutants (OMs) by NF membranes. This study used polydopamine (PDA) as a model coating to comprehensively link the changes in membrane properties with the changes in transmission of 34 OMs. The membrane characterization demonstrated that a thicker, denser, and more hydrophilic PDA coating can be achieved by increasing the PDA deposition time from 0.5 to 4 h. Overall, the transmissions of target OMs were reduced by PDA-coated NF membranes compared to unmodified NF membranes. The neutral hydrophobic compounds showed lower transmissions for longer PDA coating (PDA4), while the neutral hydrophilic compounds tended to show lower transmissions for shorter PDA coating (PDA0.5). To explain this, competing effects provided by the PDA coatings are proposed including sealing defects, inducing cake-enhanced concentration polarization in the coating layer for neutral hydrophilic compounds, and weakened hydrophobic adsorption for neutral hydrophobic compounds For charged compounds, PDA4 with the greatest neg. charge among the PDA-coated membranes showed the lowest transmission. Depending on the mol. size and hydrophilicity of the compounds, the transmission of OMs by the PDA4 coating could be reduced by 70% with only a 26.4% decline in water permeance. The correlations and mechanistic insights provided by this work are highly useful for designing membranes with sp. surface properties via surface modification to improve the removal of OMs without compromising water production To complete the study, the researchers used 4-tert-Octylphenol (cas: 140-66-9) .

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Cas: 140-66-9 | Liu, Yi-junpublished an article in 2021

SDS of cas: 140-66-9《Effects of four drying methods on Ganoderma lucidum volatile organic compounds analyzed via headspace solid-phase microextraction and comprehensive two-dimensional chromatography-time-of-flight mass spectrometry》 was published in 2021. The authors were Liu, Yi-jun;Qian, Yang-yang;Bing, Shu;Liu, Yang-yang;Tu, Xing-hao;Ouyang, Hong-jun;Li, Yahui;Ge, Tan;Yu, Zi-wei;Fei, Chen;Lin, Li-jing, and the article was included in《Microchemical Journal》. The author mentioned the following in the article:

The effect of four drying methods (namely, sun drying, vacuum freeze drying, vacuum drying, and hot air drying) on the fresh Ganoderma lucidum volatile organic compounds (VOCs) was studied by their separation via headspace solid-phase microextraction and identification via comprehensive two-dimensional chromatog.-time-of-flight mass spectrometry. In total, 247 kinds of VOCs, mainly composed of alcs., aldehydes, esters, ketones, and olefins, were identified. Orthogonal partial least squares discriminant anal. and displacement test combined with the variable important in the projection method revealed that VOCs’ types and contents in Ganoderma lucidum were influenced by the particular drying method, which could be identified using specific organic compounds The heating process increased the content of aldehydes, esters, and olefins and reduced alc. and ketones’ content. Since 3-propoxy-1-Propene, 2-pentyl-Furan, Acetic acid, 2-Butanone, 1-Pantano, and other VOCs did not disappear during the drying process, they can be used for the classification and identification of Ganoderma lucidum species and other edible fungi. To complete the study, the researchers used 4-tert-Octylphenol (cas: 140-66-9) .

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Sukuroglu, Ayca Aktas et al. published new experimental results with the assistance of cas: 140-66-9

Sukuroglu, Ayca Aktas;Battal, Dilek;Kocadal, Kumsal;Sungur, Mehmet Ali;Cok, Ismet;Unlusayin, Irfan published 《Biomonitoring of bisphenol A, 4-nonylphenol, and 4-t-octylphenol in Turkish population: exposure and risk assessment》. The research results were published in《Environmental Science and Pollution Research》 in 2022.Category: alcohols-buliding-blocks The article conveys some information:

Biomonitoring studies are important tools to understand the effects of endocrine-disrupting compounds on human health. Up to now, there have been no biomonitoring and risk assessment studies conducted in Turkish population in which urinary bisphenol A (BPA), 4-nonylphenol (4-NP), and 4-t-octylphenol (4-t-OP) levels were measured simultaneously. The aim of this study is to measure urinary BPA, 4-NP, and 4-t-OP on Turkish population and conduct a risk assessment using urinary levels of chems. of interest. During the study, liquid chromatog. with tandem mass spectrometry (LC-MS/MS) was used to measure urinary levels of above-mentioned chems., and human biomonitoring was used as a risk assessment tool in 103 volunteers, living in Mersin Region, Turkey. Urinary BPA, 4-NP, and 4-t-OP were founded as 0.0079μg/g creatinine, 0.0177μg/g creatinine, and 0.0114μg/g creatinine, resp. The obtained estimated daily intakes (EDIs) were calculated as 0.095μg/kg bw/day, 0.041μg/kg bw/day, and 0.091μg/kg bw/day, for BPA, 4-NP, and 4-t-OP, resp. In conclusion, although no potential health risk due to BPA and 4-NP exposure was observed, there might be health risks associated with 4-t-OP exposure in the Turkish population.4-tert-Octylphenol (cas: 140-66-9) were involved in the experimental procedure.

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Cas: 140-66-9 | Lee, Sangsuk et al. made new progress in 2022

Lee, Sangsuk;Straub, Anthony P. published 《Analysis of Volatile and Semivolatile Organic Compound Transport in Membrane Distillation Modules》 in 2022. The article was appeared in 《ACS ES&T Engineering》. They have made some progress in their research.HPLC of Formula: 140-66-9 The article mentions the following:

Membrane distillation (MD) is an emerging water treatment process that offers near-complete removal of nonvolatile contaminants. However, the transport of volatile compounds in the process is highly varied and poorly understood. In this work, we investigate the transport of a wide range of semivolatile and volatile compounds in membrane distillation (55 compounds total) allowing us to gain broad insights into the compound properties, system designs, and operating conditions that impact transport rates in direct-contact MD. We first use exptl. verified simulations to study the effects of different mol. properties on transport and show that the Henry’s constant and diffusion coefficient are the most important mol. properties in determining solute flux. We then study the transport resistances across MD membranes and find distinct transport regimes dominated by resistances associated with either diffusion through the membrane or boundary layers on either side of the membrane. Simulations of large-scale MD modules reveal the impact of membrane area, operating temperature, and crossflow velocity on the removal of contaminants. Finally, we comprehensively compare the removal of different classes of contaminants between MD and RO, finding that MD is more effective in removing small neutral compounds with low volatility. Overall, the results of this work demonstrate important compound properties and operating conditions that control volatile mass transport in MD. To complete the study, the researchers used 4-tert-Octylphenol (cas: 140-66-9) .

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Cas: 140-66-9 was involved in experiment | Science of the Total Environment 2021

Chen, Zhuo;Wang, Dan;Dao, Guohua;Shi, Qi;Yu, Tong;Guo, Fang;Wu, Guangxue published 《Environmental impact of the effluents discharging from full-scale wastewater treatment plants evaluated by a hybrid fuzzy approach》. The research results were published in《Science of the Total Environment》 in 2021.Related Products of 140-66-9 The article conveys some information:

Increasing attention is being paid to the environmental impacts of wastewater treatment plant (WWTP) effluent. In this study, comprehensive environmental impact analyses (EIAs) were performed for the secondary treatment processes, tertiary treatment processes, and entire plants at five full-scale WWTPs in Kunming, China. The EIAs took into account greenhouse gas (GHG) emissions, potential for the effluent to cause eutrophication, ecol. risks posed by endocrine disrupting compounds (EDCs) in treated effluent, and the risks posed by heavy metals in excess sludge. A comprehensive assessment toward environmental sustainability was performed using a fuzzy approach. The results indicated that the biol. treatment process made the largest contribution (>68% of the total) of the secondary treatment processes to GHG emissions and that electricity consumption made the largest contribution (>64% of the total) of the tertiary treatment processes to GHG emissions. Large numbers of EDCs were removed during the secondary treatment processes, but the potential ecol. risks posed by EDCs still require attention. High mercury concentrations were found in excess sludge. The plant that removed the largest proportion of pollutants and produced effluent posing the least ecol. risks gave the best comprehensive EIA performance. And 4-tert-Octylphenol (cas: 140-66-9) was used in the research process.

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