Results 31 to 40 of about 10,171 (209)
A novel electrochemical bioassay for the rapid and sensitive evaluation of heavy metals toxicity was developed using the alkaline phosphatase activity of Chlamydomonas reinhardtii (C. reinhardtii).
Haitao Jiang +7 more
doaj +1 more source
The reduction of p-nitrophenol to p-aminophenol has become a benchmark reaction for testing the efficiency of new catalytic systems. In this study, we use oxidatively modified carbon (OMC) as a structural support to develop a new cost-efficient nickel ...
Shamil Galyaltdinov +4 more
doaj +1 more source
Advances in selective hydrogenation of nitrobenzene toward p-aminophenol
p-Aminophenol is an important intermediate for dyestuff, medical and rubber. Selective hydrogenation of nitrobenzene is a green and environmentally friendly preparation process for the p-aminophenol synthesis.
Jinzhi Lu, Hao Wang, Xiao Cai, Yan Zhu
doaj +1 more source
Maleic anhydride was reacted with p-aminophenol and p-toluidine in the presence of di-phosphorus pentoxide (P2O5) as a catalyst to produce two compounds: N-(4-hydroxy-phenyl)maleimide (I) and N-(4-methylphenyl)maleimide (II). The new azo compounds I(a-c)
Issam Ahmed Mohammed, Asniza Mustapha
doaj +1 more source
Spectrophotometric Determination of Some Phenolic Compounds Using N,N- diethyl –p-phenylenediamine (DE – PPD) and Benzoyl peroxide [PDF]
A rapid and sensitive spectrophotometric method has been developed for the determination of some phenolic compounds (phenol, o-aminophenol and α-naphthol) and was applied for determination of amoxicillin drug.
Elham S. Salih +2 more
doaj +1 more source
An Update on Airborne Contact Dermatitis: 2001-2006 [PDF]
Reports on airborne dermatoses are mainly published in the context of occupational settings. Hence, in recent years, dermatologists and also occupational physicians have become increasingly aware of the airborne source of contact dermatitis, resulting ...
Goossens, A, Santos, R
core +1 more source
Simple and rapid hydrogenation of p-nitrophenol with aqueous formic acid in catalytic flow reactors
The inner surface of a metallic tube (i.d. 0.5 mm) was coated with a palladium (Pd)-based thin metallic layer by flow electroless plating. Simultaneous plating of Pd and silver (Ag) from their electroless-plating solution produced a mixed distributed ...
Rahat Javaid +3 more
doaj +1 more source
Synergistic effects of micro/nano modifications on electrodes for microfluidic electrochemical ELISA [PDF]
Microfluidic electrochemical sensing has been considered to be highly efficient. However, we showed, by using numerical simulations in this study, that a planar electrode formed on the bottom of a microchannel is exposed to only a small fraction of ...
Anada Takahisa +7 more
core +1 more source
In this work, new evidence for the photodegradation reactions of acetaminophen (AC) is reported by photoluminescence (PL), Raman scattering and FTIR spectroscopy.
Monica Daescu +5 more
doaj +1 more source
Automated analysis of oxidative metabolites [PDF]
An automated system for the study of drug metabolism is described. The system monitors the oxidative metabolites of aromatic amines and of compounds which produce formaldehyde on oxidative dealkylation.
Furner, R. L.
core +1 more source

