نتایج جستجو برای: nitrophenols

تعداد نتایج: 172  

2013
Ahmet Oğuz Baktır Hayrettin Sağlam Bahadır Şarlı Hüseyin Arınç Yasemin Doğan Hüseyin Katlandur

Nitrophenols are common components of industrial effluents and have been detected in urban and agricultural waste. Dinitroortho-cresol (DNOC) can easily enter the body through inhalation, ingestion or the skin. Yellow staining is typical in toxications via skin contact. The main toxic effects of DNOC derivatives are due to an increase in cellular metabolism. It acts directly on metabolism by in...

Journal: :South African journal of chemistry 2021

ABSTRACT Truncated cubic Cu-oxide nanocrystals with edge lengths of ca. 600 nm were prepared employing the low-cost copper (II) chloride as precursor. XRD revealed that truncated are present in both CuI and Cu0 state. XPS characterisation gives insight into amount each state as-prepared, oxidised, reduced recovered catalyst species. The catalytic activity was tested for reduction nitrophenols u...

Journal: :Zeitschrift fur Naturforschung. C, Journal of biosciences 2007
Maria Gerginova Jordan Manasiev Nedka Shivarova Zlatka Alexieva

The phenol-degrading strain Trichosporon cutaneum R57 utilizes various aromatic and aliphatic compounds as a sole carbon and energy source. The intracellular activities of phenol hydroxylase [EC 1.14.13.7] of a Trichosporon cutaneum R57 strain grown on phenol (0.5 g/l) were measured. Different toxic phenol derivatives (cresols, nitrophenols and hydroxyphenols) were used as substrates in the rea...

2011
Sameer A. M. Abdulrahman Kanakapura Basavaiah

Two simple and selective spectrophotometric methods have been proposed for the determination of gabapentin (GBP) in pure form and in capsules. Both methods are based on the proton transfer from the Lewis acid such as 2,4,6-trinitrophenol (picric acid; PA) or 2,4-dinitrophenol (2,4-DNP) to the primary amino group of GBP which works as Lewis base and formation of yellow ion-pair complexes. The io...

2008
Mathew R. Heal Mark A. J. Harrison

Nitrophenols are present in the atmospheric gas phase and in cloud and rainwater. Their formation via aqueous-phase reactions of phenol with the nitronium ion, NO2 + , arising from N2O5 and ClNO2 partitioning into the aqueous phase, has been proposed but not verified experimentally. Here we demonstrate for the first time that gaseous N2O5 and ClNO2 partitioning into dilute aqueous solutions of ...

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