Results 11 to 20 of about 25,950 (266)

Determination of 15 phthalic acid esters based on GC-MS/MS coupled with modified QuEChERS in edible oils. [PDF]

open access: goldFood Chem X, 2022
Wang X   +10 more
europepmc   +2 more sources

Condensation of anhydrides or dicarboxylic acids with compounds containing active methylene groups. Part 1: Condensation of phthalic anhydride with acetoacetic and malonic ester [PDF]

open access: green, 1985
Phthalic anhydride was condensed with acetoacetic ester in acetic anhydride and triethylamine solution, and when phthalyl chloride was reacted with sodium acetoacetic ester compounds were formed of the phthalide and indandione series: phthalylacetoacetic
Oshkaya, V. P., Vanag, G. Y.
core   +2 more sources

The formation of SOA and chemical tracer compounds from the photooxidation of naphthalene and its methyl analogs in the presence and absence of nitrogen oxides [PDF]

open access: yesAtmospheric Chemistry and Physics, 2012
Laboratory smog chamber experiments have been carried out to investigate secondary organic aerosol (SOA) formation from the photooxidation of naphthalene and its methyl analogs, 1- and 2-methylnaphthalene (1-MN and 2-MN, respectively).
T. E. Kleindienst   +4 more
doaj   +1 more source

Synthesis and Characterization of some New Amic acid and Imides and study the Biological Activity

open access: yesTikrit Journal of Pure Science, 2023
This study includs the synthesis of some new Amic acid and Imides, starting from the esters [S1] of Terephthalic acid which then converted to its hydrazide [S2] then to amic acid derivatives [S3-S7] and finally with imides [S8-S12].
Salwa Abd Al-Satar Jabbar
doaj   +1 more source

Transcriptomic analyses reveal increased expression of dioxygenases, monooxygenases, and other metabolizing enzymes involved in anthracene degradation in the marine alga Ulva lactuca

open access: yesFrontiers in Plant Science, 2022
To analyze the mechanisms involved in anthracene (ANT) degradation in the marine alga Ulva lactuca, total RNA was obtained from the alga cultivated without ANT and with 5 μM of ANT for 24 h, and transcriptomic analyses were performed.
Alberto González   +10 more
doaj   +1 more source

Comparative polymer biodegradation efficiency of an isolated Acinetobacter sp. with Bravibacillus sp. and E. coli by resting cells

open access: yesJournal of Advanced Biotechnology and Experimental Therapeutics, 2022
At a concentration of 4 g/L, an enteric polymer is utilized to target drug release in the small intestine and causes considerable toxicity in cells. Our ecology and ecosystem are also harmed by their non-biodegradable qualities.
Shumona Akter   +6 more
doaj   +1 more source

Evaluation of anthropogenic secondary organic aerosol tracers from aromatic hydrocarbons [PDF]

open access: yesAtmospheric Chemistry and Physics, 2017
Products of secondary organic aerosol (SOA) from aromatic volatile organic compounds (VOCs) – 2,3-dihydroxy-4-oxopentanoic acid, dicarboxylic acids, nitromonoaromatics, and furandiones – were evaluated for their potential to serve as anthropogenic SOA ...
I. M. Al-Naiema, E. A. Stone
doaj   +1 more source

Fate of phthalic acid esters during composting of both lagooning and activated sludges [PDF]

open access: yes, 2005
Among the phthalic acid esters (PAEs) targeted by the United States Environmental Protection Agency (USEPA) as priority pollutants, di-ethyl-hexyl phthalate (DEHP) is the major pollutant identified at high concentration level in lagooning sludge (LS), at
Amir, Soumia   +6 more
core   +2 more sources

Home - About - Disclaimer - Privacy