Organophosphate esters 翻译
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 … Witryna15 lip 2024 · Spatial distribution of organophosphate esters in the atmosphere of Ny-Ålesund, Svalbard. The bars show the average concentration during the eight years of sampling. Prior to sampling, XAD-2 resin (20–60 mesh, Supleco, USA) was precleaned by continuous Soxhlet extraction for 24 h using 500 mL of n-hexane/dichloromethane …
Organophosphate esters 翻译
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WitrynaAn organophosphate (sometimes abbreviated OP) is the general name for esters of phosphoric acid.Phosphates are probably the most pervasive organophosphorus compounds.Many of the most important biochemicals are organophosphates, including DNA and RNA as well as many cofactors that are essential for life. … Witryna5 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 …
In organic chemistry, organophosphates (also known as phosphate esters, or OPEs) are a class of organophosphorus compounds with the general structure O=P(OR)3, a central phosphate molecule with alkyl or aromatic substituents. They can be considered as esters of phosphoric acid. Like … Zobacz więcej Alcoholysis of POCl3 Phosphorus oxychloride reacts readily with alcohols to give organophosphates. This is the dominate industrial route and is responsible for almost all organophosphate … Zobacz więcej Guanitoxin is a naturally occurring organophosphate produced by cyanobacteria. The detection … Zobacz więcej History Early pioneers in the field include Jean Louis Lassaigne (early 19th century) and Philippe de Clermont Zobacz więcej Flame retardants (FRs) are chemicals that have been used on diverse consumer materials to prevent combustion and to delay the spread of fire after ignition. The increased demand to satisfy fire safety standards for flammability of plastic materials used … Zobacz więcej The phosphate esters bearing OH groups are acidic and partially deprotonated in aqueous solution. For example, DNA and RNA are polymers of the type [PO2(OR)(OR') … Zobacz więcej Today, organophosphates make up about 50% of the killing agents in chemical pesticides. Organophosphate pesticides (OPPs), like some nerve agents, inhibit acetylcholinesterase (IRAC mode of action 1b), which is … Zobacz więcej Poisoning Many "organophosphates" are potent nerve agents, functioning by inhibiting the action of acetylcholinesterase (AChE) in nerve cells. … Zobacz więcej 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, …
Witryna11 sty 2024 · Although chlorinated organophosphate esters (Cl-OPEs) have been reported to be ubiquitously distributed in various anoxic environments, little information is available on their fate under anoxic conditions. In this study, we report two Dehalococcoides-containing enrichment cultures that transformed 3.88 ± 0.22 μmol … 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 …
Witryna14 wrz 2024 · In the study, nearly 400 food samples were tested for evidence of organophosphate esters (OPEs)—chemicals used as flame retardants in furnishings and textiles, building, food packaging materials ...
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; … birthday architectWitryna24 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 … daniel throppWitrynaorganophosphate翻译：有機磷酸酯（用於殺除危害莊稼的昆蟲和小動物）。了解更多。 daniel thrown in the lions denWitryna16 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 … daniel thrasher molly garciaWitrynaOrganophosphate esters (OPEs) have been reported to occur in various agro-food items worldwide, which has resulted in increasing concerns for effects on health of humans and wildlife, including through agriculture. However, information on presence, sources and transfer routes of OPEs in agro-foods, and consequent health risks … birthday areas near meWitryna14 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 birthday arch standWitryna1 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 … daniel thrasher perfect pitch