Analytical methods for determining 14 endocrine-disrupting compounds (EDCs) in coastal waters, suspended particles, and sediment samples were successfully performed by ultrafast liquid chromatography with photodiode array fluorescence detections (UFLC-PDA-FLD). Solid‑phase extraction (SPE) ultrasound-assisted (USE) used sample preparation. Two chromatographic have been developed. An isocratic s...

Determination of stable carbon (613C) isotope systematics for alkylphenols and light aromatic hydrocarbons (BTEX) in petroleum formation waters and co-produced oils Gordon D. Love, Andrew C. Aplin*, Stephen R. Larter, Gillian Taylor School of Civil Engineering and Geosciences, University of Newcastle upon Tyne, Newcastle upon Tyne NE1 7RU, UK

Spectrophotometric examinations showed the presence of phenolic compounds in the organic residue collected from four groundwater resources located in vicinity of an oil refinery at the outskirt of Tehran. The average concentration of total phenolic compounds was about 0.38 mg.L-1 in these samples using Folin-Ciocalteu method. GC-Mass analysis disclosed that alkylphenols were the major phenolic ...

Alkylphenols are widely used as plastic additives and surfactants. We report the identification of an alkylphenol, nonylphenol, as an estrogenic substance released from plastic centrifuge tubes. This compound was extracted with methanol, purified by flash chromatography and reverse-phase high performance liquid chromatography, and identified by gas chromatography-mass spectrometry. Nonylphenol ...

Partitioning of organic pollutants is essential to their fate, mobility and removal from water and soil. To study the partitioning behavior of selected alkylphenols, bisphenol A, phthalates and polycyclic aromatic hydrocarbons (PAHs), a method for separating the truly dissolved and colloidal phase of organic pollutants was developed, verified and applied to samples of landfill leachate and stor...

In this study, the synthesis of new coumarins with aliphatic chains is discussed. The incorporation 6-tert-octyl and 6,8-ditert-butyl into a coumarin structure from alkylphenols, allows obtaining hydrophobic good yields. These can be potential modulators TRPV1 receptors. Synthesis spectroscopic data these are analyzed.