نتایج جستجو برای: 4 nitrophenol 4np

تعداد نتایج: 1304405  

Journal: :Environmental science and pollution research international 2015
T Faludi C Balogh Z Serfőző I Molnár-Perl

As a novel approach to characterize the phenolic pollutants of Lake Balaton (Central Europe, western Hungary), 26 endocrine disrupting phenols (chlorophenols, nitrophenols, alkylphenols, triclosan, bisphenol-A) were quantified in dissolved and suspended particulate matter (SPM) phases, alike. Sample collection was performed in the western and eastern basins, at 20 sites in April and October 201...

Journal: :Acta Crystallographica Section E Structure Reports Online 2012

2017
Hirotaka Koga Naoko Namba Tsukasa Takahashi Masaya Nogi Yuta Nishina

Continuous-flow nanocatalysis based on metal nanoparticle catalyst-anchored flow reactors has recently provided an excellent platform for effective chemical manufacturing. However, there has been limited progress in porous structure design and recycling systems for metal nanoparticle-anchored flow reactors to create more efficient and sustainable catalytic processes. In this study, traditional ...

Journal: :Nano letters 2016
Eredzhep Menumerov Robert A Hughes Svetlana Neretina

The reduction of 4-nitrophenol to 4-aminophenol by borohydride is one of the foremost model catalytic reactions because it allows for a straightforward assessment of catalysts using the kinetic parameters extracted from the real-time spectroscopic monitoring of an aqueous solution. Crucial to its standing as a model reaction is a comprehensive mechanistic framework able to explain the entire ti...

Journal: :Nanoscale 2012
H Yamamoto H Yano H Kouchi Y Obora R Arakawa H Kawasaki

In this study, we investigated the catalytic properties of N,N-dimethylformamide (DMF)-stabilized gold nanoclusters (AuNCs) in the reduction of 4-nitrophenol (PNP) to 4-aminophenol by NaBH(4), a well known model reaction to be catalyzed by metal surfaces. The DMF-stabilized AuNCs were prepared in DMF by a surfactant-free method. The DMF-stabilized AuNCs showed high catalytic activity even when ...

Journal: :Acta Crystallographica Section E Crystallographic Communications 2020

Journal: :MRS Advances 2023

Abstract This study reports the systematic development of cyclodextrin magnetic biocomposite for remediation 4-nitrophenol from wastewater. Magnetic was synthesized by co-precipitation Fe 2+ and 3+ in presence NaOH treated pine-cone followed cross-linking with using epichlorohydrin, achieved an optimization tool. The experiments were designed interaction between working condition variables (CM-...

Journal: :Clinical chemistry 1981
G N Bowers R B McComb A Upretti

We studied 53 lots of 4-nitrophenyl phosphate (I), obtained from 20 different commercial suppliers, and used this information to set specifications for it. Using these well-defined specifications, we classified 21 lots of I as "unacceptable," 26 lots as "borderline," and six as "acceptable." All lots were shown to contain some 4-nitrophenol and inorganic phosphate. However, "acceptable" I had <...

Journal: :Biochemical pharmacology 2009
Pallabi Mitra Kenneth L Audus

Several cytosolic sulfotransferase enzyme isoforms are functional in placenta but there is limited information available on the utility of cultured trophoblast cells for studying sulfation. The trophoblast cell layer constitutes the rate-determining barrier for trans-placental transfer. The objective of this work was to examine the mRNA expression and enzyme activities of four sulfotransferase ...

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