The article provides information on the development of a new reference material (RM) for composition solution six priority phthalates (dimethyl phthalate, diethyl di(n-butyl) benzyl butyl bis(2-ethylhexyl) di(n-octyl) phthalate) in methanol provided with metrological traceability to GET 208-2019 (GET 208). procedure preparation and certification RMs is shown, including estimation homogeneity st...

In mammals, exposure to antiandrogenic chemicals during sexual differentiation can produce malformations of the reproductive tract. Perinatal administration of AR antagonists like vinclozolin and procymidone or chemicals like di(2-ethylhexyl) phthalate (DEHP) that inhibit fetal testicular testosterone production demasculinize the males such that they display reduced anogenital distance (AGD), r...

Pure organic substances are the first and key link in chain of metrological traceability analysis. In most cases, purity determination substance is a non-trivial task, solution which requires preliminary theoretical study understanding capabilities instrumental methods for developing pertinent analytical procedure. Within study, an algorithm determining separate group compounds – ortho-phthalic...

Monolithic silica spin column extraction (MonoSpin-SPE) was developed as a simple, sensitive, and eco-friendly pretreatment method which combined with ultra-fast liquid chromatography-mass spectrometry (UFLC-MS) to determine the levels of six phthalate esters, dimethyl-(DMP), diethyl-(DEP), dipropyl- [DPrP], butyl-benzyl-(BBP), dicyclohexyl(DcHP), and di- n-octyl-(DOP) phthalate in physiologica...

The photocatalytic degradation of dimethyl phthalate (DMP) in aqueous TiO2 suspension under UV illumination has been investigated using oxygen (O2) and ferrate (Fe(VI)) as electron acceptors. The experiments demonstrated that Fe(VI) was a more effective electron acceptor than O2 for scavenging the conduction band electrons from the surface of the catalyst. Some major intermediate products from ...

Phthalate esters are toxic organic contaminants which can enter into the environment through various industrial processes. In this study, a 6-liter fixed film bioreactor was used to examine biodegradation of phthalic acid (PA) and dimethyl phthalate (DMP) in synthetic wastewater. Effect on the process of two operating factors, namely hydraulic retention time (HRT) (at four levels ranging betwee...