A bacterial strain designated as ETG-101, capable of utilizing DOP as source of carbon and energy, was isolated from activated sludge. According to the 16 s rRNA gene sequences, strain ETG-101 was identified as Burkholderia sp. Analysis of DOP degradation intermediates indicated that strain ETG-...

Di-n-octyl phthalate (DnOP) is a plasticizer used in polyvinyl chloride plastics, cellulose esters, and polystyrene resins. The metabolism of DnOP results in the hydrolysis of one ester linkage to produce mono-n-octyl phthalate (MnOP), which subsequently metabolizes to form oxidative metabolites...

This study evaluates the developmental toxicity of two dialkyl phthalate esters, di-n-heptyl phthalate (DHPP) and di-n-octyl (DnOP) phthalate, which have straight-alkyl side chains of seven and eight carbons, respectively. Sprague-Dawley rats were administered 0, 0.25, 0.50, or 1 g/kg/day of DHP...

An improved gas chromatography–mass spectrometry (GC–MS) method for simple, rapid and precise quantification of phthalates in drinking water is presented. This method was validated for bis (2-n-butoxyethyl) phthalate (DBEP), bis (2-n-ethylhexyl) phthalate (DEHP), butyl benzyl phthalate (BBP), ...

Phthalate esters (PAEs), a category of widely used plasticizers, are tend to migrate from plastic packaging to drinks. In this paper, we develop a simple and rapid coprecipitation method for synthesis of a magnetic covalent organic framework (COF) adsorbent. The fabricated COF-(TpBD)/Fe3O4 was a...

The concentrations, congener profiles and spatial distribution of 13 phthalate esters (PAEs) in the freshwater fish ponds in the Pearl River Delta (PRD) region were investigated in water and sediment samples collect from 22 sites during Jul. 2016–Sept. 2017. The di-2-ethylhexyl phthalate (DEHP)...

Phthalates adversely affect the male reproductive system in humans. Through gas chromatography-mass spectrometry analysis, we investigated the residual profile and levels of 15 phthalates in 90 goat milk-based infant formulas from 15 commercial brands of 10 dairy enterprises located in Shaanxi P...

An Ultra High Performance Liquid Chromatography – Tandem Mass Spectrometry method has been developed for the analysis of 12 phthalate esters in Greek grape marc spirits. The phthalates were separated on a U-VDSpher PUR 100 C18-E (100 mm x 2.0 mm, 1.8 μm) column by gradient elution. The analyte...

In this work, the suitability of Fe3O4 nanoparticles coated with reduced-graphene oxide as sorbent was evaluated for the extraction of a group of fourteen phthalic acid esters (i.e. benzylbutyl phthalate (BBP), bis-2-n-butoxyethyl phthalate (DBEP), dibutyl phthalate (DBP), diisobutyl phthalate (...

Tea is one of the most consumed beverages in the word. Here we report the concentrations of metals and phthalates in 32 commercial tea packages. The data were used to estimate the average daily intake of metals and phthalates, and associated Hazard Quotients (HQ) were calculated in order to dete...

Dietary exposure to phthalate esters (PAEs) was assessed for the general Chinese population in the 5th Chinese Total Diet Study (TDS). Concentrations of 16 PAEs, including bis (2-ethylhexyl) phthalate (DEHP), di-n-butyl phthalate (DBP), butylbenzyl phthalate (BBP), diethyl phthalate (DEP), dimet...

Di(2-ethylhexyl) phthalate (DEHP) is a widely used plasticizer that is rapidly metabolized to mono(2-ethylhexyl) phthalate (MEHP), an active metabolite, in mammals. In the present study, the hydrolysis of DEHP by the liver and intestinal microsomes of humans, monkeys, dogs, rats, and mice was ex...

BackgroundDi-(2-ethylhexyl) phthalate (DEHP), the most widely used phthalate, has recently been associated with neurodevelopmental disturbances in children. However, the risk is yet to be quantified. Therefore, a systematic review and meta-analysis focusing on the association between exposure to...

This study was conducted to investigate the biodegradation of di-(2-ethylhexyl) phthalate (DEHP) by Burkholderia pyrrocinia B1213. The results showed that DEHP at concentration of 500 mg/L in a mineral salt medium containing 1.0% yeast extract can be almost completely degraded (98.05%) by strain...

Endocrine-disrupting compounds (EDCs) are found in the environment due to their use in industrial and manufacturing activities. Exposure of the population to bisphenol A (BPA) and di (2-ethylhexyl) phthalate (DEHP) is significant because they are present in many consumer products. EDCs target th...

BackgroundPlasminogen activator inhibitor type 1 promotes formation of endothelial microparticles with procoagulant activity. However, it remains unclear whether di-(2-ethylhexyl) phthalate, a peroxisome proliferator-activated receptor α agonist, influences microparticle formation.

2, 3-Dichloro-5,8-dimethoxy-1,4-naphthoquinone (DDNQ) is a synthetic naphthaquinone which has shown reduced chemotoxicity and enhanced chemotherapeutic activity in in vitro studies. The ability of DDNQ to serve as a chemical dopant of graphene resulting improved performance of graphene by tuning...

The reaction between 2,3-dichloro-1,4-naphthoquinone and N,N′-diphenyl thiourea in acetonitrile medium, which yields the product, 2,3-(N,N′-diphenylthioureylene)-naphtho-1,4-quinone has been found to take place in two ways—thermal and photochemical. The thermal (dark) reaction occurs through ...

The structural change associated with the first-order phase transition (TC = 155.1 K) in a mixed-stack charge-transfer complex (octamethylferrocene)(2,3-dichloro-1,4-naphthoquinone)2 was investigated crystallographically. X-ray structure determination at 90 K revealed that the transition is asso...

The reaction of 2,3-dichloro-1,4-naphthoquinone (DCNQ) with crizotinib (CZT; a novel drug used for treatment of non-small cell lung cancer) was investigated in different solvents of varying dielectric constants and polarity indexes. The reaction produced a red-colored product. Spectrophotometric...