Organophosphate esters翻译

Author: urwg

August undefined, 2024

Witryna29 mar 2024 · Production of organophosphate esters (OPEs), which represent a major flame-retardant class present in consumer goods, has increased over the past 2 decades. Experimental studies suggest that OPEs may be associated with thyroid hormone disruption, but few human studies have examined this association. We … Witryna16 lis 2024 · Organophosphate esters (OPEs) are widely used as flame retardants and plasticizers. OPEs have been released into various environments (e.g., water, …

Exposure to Organophosphate esters and metabolic …

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 … Witryna13 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 … bird scooter parts

A critical review of human exposure to organophosphate esters …

Witryna25 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 … Witryna1 cze 2024 · Organophosphate esters (OPEs) are common additives in a wide range of commercial and industrial products. Elevated and prolonged exposure to OPEs may … Witryna温州市某污水处理厂设计规模为1.0×104 m3/d,采用AAO-MBR工艺,出水水质达到《城镇污水处理厂污染物排放标准》(GB 18918—2002)一级A标准.对1年的运营数据进行分析,结果表明:AAO-MBR工艺能够稳定地脱氮除磷并降解有机物,项目实际进水CODCr、TN、NH3-N和TP年平均浓度分别为182、40、13 mg/L和2.5 mg/L,对应出水污染物 ... danaher malaysia office address

Organophosphate esters in inland and coastal waters in northern Greece ...

AAO-MBR工艺在某城镇污水处理厂中的应用-谢晓旺李露泽-中文期 …

http://www.ichacha.net/organophosphate.html WitrynaOrganophosphate esters are used in a wide variety of applications including hydraulic fluids, plasticizers, and antiwear additives to hydraulic fluids and engine oils. Some … danaher mount systemWitryna1 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 … bird scooter overcharge

"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 … " - Organophosphate esters翻译

Organophosphate esters翻译

Witryna4 wrz 2024 · Abstract. Numerous studies have reported the environmental contamination with traditional organophosphate triesters (tri-OPEs), but there is very little … Witryna城乡医疗卫生设施的规划与实施作为政府兜底保障的重要民生工程，加强规划用地的保障是提升医疗卫生服务水平的基础。本文从重庆医疗卫生设施现有规划标准及实施存在的现实问题出发，重点在明确分级分类体系、对接行业标准、公共卫生设施用地控制指标、街道及社区级医疗卫生设施标准制定 ...

Did you know?

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 of OPEs in the air as far away as … Zobacz więcej History Early pioneers in the field include Jean Louis Lassaigne (early 19th century) and Philippe de Clermont (1854). In 1932, German … Zobacz więcej Poisoning Many "organophosphates" are potent nerve agents, functioning by inhibiting the action of … Zobacz więcej The phosphate esters bearing OH groups are acidic and partially deprotonated in aqueous solution. For example, DNA and RNA are … 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 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 … Zobacz więcej

Witrynaorganophosphate的中文意思：有机磷酸盐酯…，查阅organophosphate的详细中文翻译 ... An organophosphate (sometimes abbreviated OP) is the general name for esters of phosphoric acid. Phosphates are probably … WitrynaOrganophosphate esters (OPEs) have been reported to occur in various agro-food items worldwide, which has resulted in increasing concerns for effects on health of …

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 ...

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 ...

WitrynaOrganophosphate triesters (tri-OPEs) have recently been widely identified in aquatic ecosystems, but information on their organophosphate diester (di-OPE) metabolites … bird scooter per mileWitrynaConcentrations of 13 organophosphate ester flame retardants (OPEs) were measured in air, dust and window wipes from 63 homes in Canada, the Czech Republic and the United States in the spring and summer of 2013 to look for abundances, differences among regions, and partitioning behavior. In general, we observed the highest … danaher netherlandsWitrynaEsters / urine Female Flame Retardants / analysis* Humans Infant Infant, Newborn Male Milk, Human / chemistry Organophosphates / analysis* Organophosphates / urine … danaher mba rotational program functionsWitryna6 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 … bird scooter pickup jobWitrynaAn organophosphate (sometimes abbreviated OP) is the general name for esters of phosphoric acid. Phosphates are probably the most pervasive organophosphorus … bird scooter publicly tradedWitryna6 maj 2024 · Organophosphate esters (OPEs) are used widely as flame retardants and plasticizers. However, the associations between OPEs metabolites and sleep outcomes (sleep disorder and trouble sleeping) remain unknown. Data utilized in this cross-sectional study was from the National Health and Nutrition Examination Survey … danaher mount pin attackWitrynaorganophosphate的中文意思：有机磷酸盐酯…，查阅organophosphate的详细中文翻译 ... An organophosphate (sometimes abbreviated OP) is the general name for … bird scooter raleigh charges