نتایج جستجو برای: 4 nitrophenol 4np

تعداد نتایج: 1304405  

2016
Eredzhep Menumerov Robert A. Hughes Svetlana Neretina

7 ABSTRACT: The reduction of 4-nitrophenol to 4-aminophenol by 8 borohydride is one of the foremost model catalytic reactions because it 9 allows for a straightforward assessment of catalysts using the kinetic 10 parameters extracted from the real-time spectroscopic monitoring of an 11 aqueous solution. Crucial to its standing as a model reaction is a 12 comprehensive mechanistic framework able...

Journal: :Dalton transactions 2015
Barun Kumar Barman Karuna Kar Nanda

Here, we demonstrate an uninterrupted galvanic replacement reaction (GRR) for the synthesis of metallic (Ag, Cu and Sn) and bimetallic (Cu-M, M=Ag, Au, Pt and Pd) sponges/dendrites by sacrificing the low reduction potential metals (Mg in our case) in acidic medium. The acidic medium prevents the oxide formation on Mg surface and facilitates the uninterrupted reaction. The morphology of dendriti...

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: :Analytical sciences : the international journal of the Japan Society for Analytical Chemistry 2015
Hongbo Liu Mei Yuan Xiaolan Yang Xiaolei Hu Juan Liao Jizheng Dang Yanling Xie Jun Pu Yuanli Li Chang-Guo Zhan Fei Liao

Spectrophotometric-dual-enzyme-simultaneous-assay (SDESA) for enzyme-linked-immunosorbent-assay (ELISA) of two components in one well is a patented platform when a special pair of labels is accessible. With microplate readers, alkaline phosphatase on 4-nitro-1-naphthylphosphate (4NNPP) served as label A; Pseudomonas aeruginosa arylsulfatase (PAAS) and acetylcholinesterase (AChE) on their substr...

Journal: :Catalysis Science & Technology 2023

Structural water molecules adsorbed on Au nanoparticles in the form of {OH − ·H 2 O@Au NPs} were identified as catalytical-active sites 4-nitrophenol reduction, which is extremely sensitive to subtle changes surrounding microenvironment.

Journal: :The Biochemical journal 1956
T W GOODWIN

(31 %), m-nitrophenol (9%), p-nitrophenol (9%), m-aminophenol (4%), o-aminophenol (3 %), 4nitrocatechol (0.7 %), aniline (033%) and o-nitrophenol (0.1%). Two new metabolites, nitroquinol (0.1%) and p-nitrophenylmercapturic acid (0.3%), were found in the urine. 4. The denitration products, phenol, catechol, L-phenylmercapturic acid, and trans-tran8-muconic acid, did not occur in the urine. 5. Ni...

Journal: :The Biochemical journal 1978
B Burchell

1. The purification to homogeneity of stable highly active preparations of UDP-glucuronyltransferase from liver of phenobarbital-treated rats is briefly described. 2. A single polypeptide was visible after sodium dodecyl sulphate/polyacrylamide-gel electrophoresis, of mol.wt.57000. 3. Antiserum raised against the pure enzyme produces a single sharp precipitin line after Ouchterlony double-diffu...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید