Results 101 to 110 of about 33,101 (301)

Characteristics of selected bioaccumulative substances and their impact on fish health

open access: yesJournal of Veterinary Research, 2016
The aim of this article was to evaluate the influence and effects of chosen bioaccumulative substances i.e. heavy metals, pesticides, and polychlorinated biphenyls (PCBs) on fish, as well as provide information on time trends and potential threat to ...
Walczak Marek, Reichert Michał
doaj   +1 more source

Cleanup and quantification of polychlorinated dibenzo-p-dioxins/furans and polychlorinated biphenyls

open access: yes, 1998
By using modern techniques of isotope dilution, high-resolution gas chromatography/high-resolution mass spectrometry and multiple ions detection, an effective cleanup, qualitative and quantitative method was developed for polychlorinated dibenzo-p ...
Kettrup, A   +8 more
core  

Embedding Chemistry and Pharmacy Into Sustainability

open access: yesAngewandte Chemie International Edition, EarlyView.
Chemistry and pharmacy provide products and processes that are indispensable for our high living standard. To understand their relationship with sustainability is important to allow them to contribute to sustainability in a sustainable manner. An integrated overview of green, circular, and sustainable chemistry and pharmacy is given and how they have t
Klaus Kümmerer
wiley   +1 more source

Uncertainty Evaluation of Indicative Polychlorinated Biphenyls in Fish by Gas Chromatography

open access: yesShipin gongye ke-ji
In order to ensure the accuracy of laboratory test results, the uncertainty of the determination of indicative polychlorinated biphenyls in fish by gas chromatography was evaluated.
Ranran YANG   +6 more
doaj   +1 more source

Modified QuEChERS methodology for the analysis of OCs and PCBs in liver and its application in wild birds (white stork, red kite, and griffon vulture)

open access: yesFrontiers in Veterinary Science
This study aimed to adapt and validate the QuEChERS method for extracting and purifying 19 persistent organic pollutants—11 organochlorine compounds and 8 polychlorinated biphenyls—for GC–MS (CNI mode) analysis in bird liver samples.
Yolanda Ibáñez-Pernía   +3 more
doaj   +1 more source

Monitoring organochlorine pesticides and polychlorinated biphenyls in Baiyangdian Lake using microbial communities

open access: yes, 2005
We used polyurethane foam units (PFUs) to collect persistent organic pollutants (POPs) from four sites in Baiyangdian Lake in July 2003. Following extraction from the PFUs, relative concentrations of seven organochlorine pesticides (OCPs) and ten ...
Wang, XH   +4 more
core  

Biphenyls and dibenzofurans - fire blight-induced phytoalexins of pear

open access: yes, 2014
After fire blight inoculation, shoots of apple and pear formed biphenyls and dibenzofurans as defense compounds. The phytoalexins were only present in the transition zone of stems, whereas leaves were devoid of these compounds.
Hanke, Magda-Viola   +6 more
core   +1 more source

An Agonist/Antagonist Photo‐Switchable Vitamin D Mimetic Enables Bidirectional Optical Control of VDR

open access: yesAngewandte Chemie International Edition, EarlyView.
Vitamin D exhibits complex and cell‐specific biological effects in multiple tissues via activation of the ligand‐sensing transcription factor vitamin D receptor (VDR). The photo‐switchable vitamin D mimetic 10 transitions between VDR antagonist (E) and agonist (Z) activity upon illumination and offers unprecedented bidirectional optical control over ...
Xiu Ge   +11 more
wiley   +1 more source

PCB (Aroclor 1242) mobility in soil as affected by various solvents

open access: yes, 1990
For the past several decades, industry has filled lagoons and landfills with significant quantities of polychlorinated biphenyls (PCBs). Other wastes such as carbon tetrachloride and various alcohols have mixed with PCBs. Soil columns spiked with Aroclor
Hayes, Jennifer Marie
core  

Synthesis of unsymmetrical biphenyls as potent cytotoxic agents

open access: yes, 2008
Twenty-six unsymmetrical biphenyls were synthesized and evaluated for cytotoxic activity against DU145, A547, KB and KB-Vin tumor cell lines. Three compounds 27, 35 and 40 showed very potent activity against the HTCL panel with an IC50 value range of 0 ...
Guo, Huan Fang   +7 more
core   +1 more source

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