Results 81 to 90 of about 2,849,712 (203)

Recovery of phthalic acid [PDF]

open access: yes, 1957
Crude phthalic acid from the fusion processing of alkyd resins was found to be recoverable by solvent extraction, neutralization-acidification, sublimation, distillation, esterificatton with monohydric alcohols, ion exchange or alkyd resin preparation ...
Roberts, George Thomas
core   +1 more source

Multi-interfacial migration/transformation and effects of phthalic acid esters in soils: A review

open access: yes浙江大学学报. 农业与生命科学版, 2017
Phthalic acid esters (PAEs) are typical organic pollutants widely distributed in various environments, including soil, water, atmosphere and sediments, etc.
GU Chenggang   +6 more
doaj   +1 more source

Decoding Biothreats With FT‐ICR‐MS: Metabotyping of Bacillus cereus Spores Through Untargeted Metabolomics

open access: yesJournal of Mass Spectrometry, Volume 61, Issue 7, July 2026.
ABSTRACT Genome sequencing is the gold standard for microbial identification. However, it fails to distinguish closely related species with overlapping genetic features. This is the case of Bacillus cereus and Bacillus cytotoxicus, two members of the B. cereus group with distinct pathogenic profiles. While B. cereus, a well‐known opportunistic pathogen
Maria Inês Romão   +5 more
wiley   +1 more source

A variety of environmentally persistent chemicals, including some phthalate plasticizers, are weakly estrogenic [PDF]

open access: yes, 1995
Sewage, a complex mixture of organic and inorganic chemicals, is considered to be a major source of environmental pollution. A random screen of 20 organic man-made chemicals present in liquid effluents revealed that half appeared able to interact with ...
Sumpter, JP   +14 more
core   +1 more source

Kinetic Study of Esterification of Acetic Acid with n-butanol and isobutanol Catalyzed by Ion Exchange Resin [PDF]

open access: yes, 2011
Esters are an important pharmaceutical intermediates and very useful perfumery agents. In this study the esterification of acetic acid with n-butanol and iso-butanol over an acidic cation exchange resin, Amberlyst 15 were carried out.
Wanchoo , Ravinder Kumar   +7 more
core   +2 more sources

Occurrence, Detection Technologies, and Regulations of Phthalic Acid Esters at Atmospheric and Aquatic Environments [PDF]

open access: yes대한환경공학회지
Phthalic acid esters or phthalates are widely used as plasticizers in various industrial plastic products. Among various phthalates, Dibutyl phthalate(DBP) and Di-(2-ehtylhexyl) phthalate(DEHP) are the most frequently used phthalates.
Eunsol Heo   +3 more
doaj   +1 more source

Recent Advances in the Use of Natural Deep Eutectic Solvents for Natural Product Sample Preparation: Focus on Purification, Characterization, and Sustainability

open access: yesJournal of Separation Science, Volume 49, Issue 7, July 2026.
ABSTRACT This review examines recent advances in the use of natural deep eutectic solvents (NaDES) for natural product sample preparation, with emphasis on extraction, purification, analytical compatibility, and sustainability. NaDES emerge as versatile, tunable, and biocompatible media that enhance the recovery and stability of diverse phytochemicals ...
Valeria Cedeño‐Fierro   +3 more
wiley   +1 more source

Occurrence of specific pollutants in a mixture of sewage and rainwater from an urbanized area

open access: yesScientific Reports
Urban runoff appears to be a pathway for transferring new emerging pollutants from land-based sources to the aquatic environment. This paper aimed to identify and describe the groups of pollutants present in rainwater surface runoff as well as their ...
Magdalena Gajewska   +5 more
doaj   +1 more source

Secondary Metabolites of Calonectria hemileiae Inhibit Hemileia vastatrix Urediniospore Germination: Evidence for Chemical Mediation in a Mycoparasitic Interaction

open access: yesPlant Pathology, Volume 75, Issue 4, July‐August 2026.
Calonectria hemileiae, an antagonist of the coffee leaf rust pathogen Hemileia vastatrix, produces low‐molecular weight secondary metabolites that inhibit urediniospore germination. These metabolites likely mediate interfungal interactions and show potential for the development of biofungicides against coffee leaf rust.
Gustavo Silva França de Souza   +7 more
wiley   +1 more source

An investigation of recalcitrant organic compounds in leachates

open access: yes, 2009
Recalcitrant organic compounds remain a key challenge in landfill leachate management as they are resistant to microbial degradation and have potential to damage the water environment. Conventional leachate characterisation methods are time consuming and
Yunus, Anika
core   +1 more source

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