Organophosphate esters 翻译

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August undefined, 2024

Witryna4 wrz 2024 · Numerous studies have reported the environmental contamination with traditional organophosphate triesters (tri-OPEs), but there is very little information on emerging tri-OPEs and organophosphate diesters (di-OPEs), especially in e-waste recycling areas. In this study, we conducted a comprehensive survey to monitor a … WitrynaOrganophosphate esters (OPEs), which are frequently used as flame retardants and plasticizers in versatile products, are readily released to the external environment. Although workers at municipal waste incineration plants may be extensively exposed to OPEs, only scarce health monitoring and risk assessments have been conducted in …

Determination of Organophosphorus Esters in Fall Protection ... - Hindawi

Witryna7 gru 2016 · The concentrations of six organophosphate esters (OPEs) in atmospheric particle phase samples collected once every 12 days at five sites in the North American Great Lakes basin over the period of March 2012 to December 2014, inclusive, are reported. These OPEs include tris(2-chloroethyl) phosphate (TCEP), tris(2 … Witryna10 sie 2024 · The ban and restriction of polychlorinated biphenyls (PCBs) and major brominated flame retardants (BFRs), including hexabromocyclododecane (HBCD) and polybrominated diphenyl ethers (PBDEs), due to their confirmed detrimental effects on wildlife and humans have paved the way for the wide application of … god and identity

A review of organophosphate esters in soil: Implications for the ...

WitrynaOrganophosphate esters (OPEs) can exhibit various toxicities including endocrine disruption activity. Unfortunately, the low-dose endocrine-disrupting effects mediated by estrogen receptors (ERs) are commonly underestimated for OPEs and their metabolites. Here, structure-oriented research was performed to investigate the … Witryna20 lis 2024 · Organophosphate esters are characterized with a wide range of physicochemical properties (Table S1), e.g., log K ow ranging from −0.65 for trimethyl phosphate (TMP) to 9.49 for tris(2-ethylhexyl) phosphate (TEHP) (van der Veen and de Boer, 2012). It is quite a challenge to develop a method with high sensitivity and … Witryna24 gru 2024 · Organophosphate esters (OPEs) have become popular as replacement flame retardants since the phase out of the polybrominated diphenyl ethers (PBDEs) during the past decade (Blum et al., 2024; Stapleton et al., 2012; van der Veen and de Boer, 2012); in addition, OPEs are used extensively as plasticizers and … bonk breaker nutrition

Organophosphate esters flame retardants in the indoor …

Organophosphate Ester Transport, Fate, and Emissions in Toronto, …

Witryna8 kwi 2024 · DOI: 10.1016/j.envint.2024.105698 Corpus ID: 215742171; Organophosphate esters and their metabolites in paired human whole blood, serum, and urine as biomarkers of exposure. @article{Hou2024OrganophosphateEA, title={Organophosphate esters and their metabolites in paired human whole blood, … Witryna(PFAS), organophosphate esters, phthalates and alternative plasticizers in mesophilic anaerobic digested sludge that has been stored open to the air or using composting to accelerate the degradation of organic compounds. Samples were taken at three timepoints during the course of the experiment, at 0 days, 179 days (6 months) and … god and i are one neville goddard pdfWitryna25 sie 2024 · We investigated the inhibitory effects of 13 organophosphate esters (OPEs) and hydrolytic metabolites on the carboxylesterase activity of rat liver microsomes in vitro in order to examine whether there might be a potential impact on human health, and to elucidate the structure activity relationship. Among the test … bonk boy theme

"Witryna1 cze 2016 · 1. Introduction. Organophosphate esters (OPEs) are currently used extensively as flame retardants, plasticizers, and anti-foaming agents (Brandsma et al., 2013).They have been introduced as alternatives to brominated flame retardants (FRs) which were restricted or phased out because of their persistence, bioaccumulation … " - Organophosphate esters 翻译

Organophosphate esters 翻译

Evaluation of the OECD POV and LRTP screening tool for …

Witryna21 lis 2024 · Purpose of Review Organophosphate esters (OPEs) are applied to a variety of consumer products, primarily as flame retardants and plasticizers. OPEs can leach out of products over time and are consequently prevalent in the environment and frequently detected in human biomonitoring studies. Exposure during pregnancy is of … Witryna15 mar 2024 · Organophosphate esters (OPEs) are well known as substitutes for PBDEs and have been extensively used worldwide, and the usage of OPEs has been increasing, with annual global consumptions of ...

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Witryna16 lis 2024 · Organophosphate esters (OPEs) are widely used as flame retardants and plasticizers. OPEs have been released into various environments (e.g., water, sediments, dust and air, and soil). To investigate the occurrence and distribution of OPEs in various environments in China, this review collects and di … WitrynaR. Guerra, in Encyclopedia of Analytical Science (Second Edition), 2005 Organophosphate esters are used in a wide variety of applications including hydraulic fluids, plasticizers, and antiwear additives to hydraulic fluids and engine oils. Some are referred to as ‘natural’ phosphate esters because the cresols and xylenols used as …

WitrynaOrganophosphate esters (OPEs) are widely used as flame retardants and plasticizers in consumer and industrial products. Human exposure to OPEs raises concerns due to their endocrine disruptive potentials. Till now, the effects of OPEs on thyroid hormones (THs) and the mediating role of oxidative stress in pregnant women have not been … Witryna6 paź 2024 · Background: To date, the toxicity of organophosphate esters has primarily been studied regarding their use as pesticides and their effects on the neurotransmitter acetylcholinesterase (AChE). Currently, flame retardants and plasticizers are the two largest market segments for organophosphate esters and they are found in a wide …

Witryna15 gru 2024 · Organophosphate esters (OPEs) in atmospheric fine particles (PM 2.5) were comprehensively investigated in the Beijing-Tianjin-Hebei (BTH) region from April 2016 to March 2024.The concentrations of Σ 8 OPEs in all the five sampling sites ranged from 90 to 8291 pg/m 3 (mean 1148 ± 1239 pg/m 3; median 756 pg/m 3).The highest … Witryna1 mar 2024 · 1. Introduction. Since polybrominated diphenyl ethers (PBDEs) have been listed in the Stockholm Convention and their commercial mixtures have largely been phased-out globally (except for Deca-BDE in certain regions), the organophosphate esters (OPEs) are regarded as good substitutes of PBDEs (Quintana et al., 2007; …

Witryna以丹皮酚为原料,与乙酸在N,N-二甲基乙酰胺(DMAc)和SOCl2作用下反应制得乙酰丹皮酚酯(1);1中酮羰基与盐酸羟胺反应生成相应的丹皮酚肟(2);在DMAc和CH2 Cl2体系中,取代羧酸(3a～3l)与SOCl2反应生成酰氯后随即与2反应合成了系列新型丹皮酚肟酯(4a～4l),产率80.9％～95.5％,其结构经1 H NMR、13 C NMR、IR和MS表征.以苯 ...

WitrynaOrganophosphate ester flame retardants and plasticizers in a Chinese population: Significance of hydroxylated metabolites and implication for human exposure Environ Pollut. 2024 Feb;257:113633. doi: 10.1016/j.envpol.2024.113633. Epub 2024 Nov 15. Authors Mengqi Li 1 ... god and idolsWitrynaAn analysis method was established to determine 14 organophosphorus ester (OPE) flame retardants in fall protection equipment by combining accelerated solvent extraction (ASE) and solid-phase extraction (SPE) with high-performance liquid chromatography-tandem mass spectrometry (HPLC-MS/MS). The ASE parameters were optimized as … bonk breaker nutrition barsWitryna14 maj 2024 · Effects of organophosphate esters on blood vessels: A physiological, pharmacological, and histological assessment of involvement in organophosphorus-induced delayed neuropathy (OPIDN). [D] . McCain, Wilfred Carl. 1994 god and huntingWitryna1 lis 2024 · The effects of aryl-organophosphate esters (aryl-OPEs) on female reproduction health are still unclear owing to the lack of specific exposure biomarkers. Here, we analyzed the hydroxylated metabolites of three aryl-OPEs (phenyl diphenyl phosphate [TPhP], 2-ethylhexyl diphenyl phosphate [EHDPP], and tricresyl phosphate … bonk breakers nutritionWitryna19 wrz 2024 · Organophosphate esters (OPEs), used as flame retardants and plasticizers, occur at relatively high concentrations in urban air and surface waters. We tested the hypothesis that some OPEs could be considered persistent and mobile organic compounds (PMOCs), using the poly parameter linear free energy relationship … bonk breaker chewsWitryna13 lut 2024 · Tris(2-butoxyethyl) phosphate (TBOEP) and tris(n-butyl) phosphate (TNBP) are the most commonly used alkyl organophosphate esters (alkyl-OPEs), and they increasingly accumulate in organisms and create potential health hazards.This study examined the metabolism of TNBP and TBOEP in Carassius carassius liver and … bonkcaftWitryna5 lip 2024 · Surface sediment samples from Taihu Lake in China and its inflow rivers, along with two lake sediment core samples, were collected and analyzed for organophosphate esters (OPEs). The concentrations of total OPEs varied from 28.60 ng/g to 158.72 ng/g (median: 54.25 ng/g) in river surface sediment and from 62.57 … bonk cartridge