نتایج جستجو برای: naphthol green b

تعداد نتایج: 1028218  

Journal: :analytical and bioanalytical chemistry research 0
mohsen keyvanfard department of chemistry, majlesi branch, islamic azad university, isfahan, 86145-311 iran behzad rezaei department of chemistry, isfahan university of technology, isfahan 84156-83111 iran khadijeh alizad department of chemistry, majlesi branch, islamic azad university, isfahan, 86145-311 iran

nowadays, palladium compounds due to their especial characteristics used in different industries, mainly in electrical power sources and chemical productions as a catalyst. therefore, pd concentration is increasing in our around that can be contaminant our environment due its toxic effects. in this work, a simple, selective and rapid flow injection method of analysis (fia) has been developed fo...

Nowadays, palladium compounds due to their especial characteristics used in different industries, mainly in electrical power sources and chemical productions as a catalyst. Therefore, Pd concentration is increasing in our around that can be contaminant our environment due its toxic effects. In this work, a simple, selective and rapid flow injection method of analysis (FIA) has been developed fo...

Journal: :Journal of bacteriology 2002
Keith A Canada Sachiyo Iwashita Hojae Shim Thomas K Wood

Trichloroethylene (TCE) is the most frequently detected groundwater contaminant, and 1-naphthol is an important chemical manufacturing intermediate. Directed evolution was used to increase the activity of toluene ortho-monooxygenase (TOM) of Burkholderia cepacia G4 for both chlorinated ethenes and naphthalene oxidation. When expressed in Escherichia coli, the variant TOM-Green degraded TCE (2.5...

2010
ianggui Kong Jingwen Zhao Jingbin Han Danyao Zhang Min Wei Xue Duan

A facile enzyme-free hydrogenperoxide electrochemical sensorwas fabricated based onmultilayer ultrathin film containing Naphthol green B anions (NGB) and exfoliated nanosheets of Co–Al layered double hydroxide (LDH) via layer-by-layer self-assembly technique. The X-ray diffraction pattern indicates the superlattice structure of the filmwith repeating distance of 4.15nm; SEM and AFM images show ...

Journal: :Vedecké práce Materiálovotechnologickej fakulty Slovenskej technickej univerzity v Bratislave so sídlom v Trnave 2021

Abstract Over the last few decades, nanotechnologies have gained a great deal of attention, and various nanomaterials techniques been developed for water remediation. This study deals with adsorption Naphthol green B onto magnetite nanoparticles synthetized by coprecipitation method at laboratory temperature. According to obtained results, sorption process is obvious only acidic condition when ...

Journal: :X-ray Structure Analysis Online 2021

The tetrabutylammonium chloride complex with rac-1,1′-bi-2-naphthol crystallizes in monoclinic space group P21/n, unit-cell parameters of; a = 10.4941(1)Å, b 26.3302(3)Å, c 11.5290(1)Å, α 90°, β 100.0154(5)°, γ 90 °, V 3137.05(5)Å3, and Z 4. packing mode, hydrogen bonding network, crystal data suggest that the structure is isomorphous reported of bromide rac-1,1′-bi-2-naphthol.2

Journal: :iranian journal of catalysis 2014
razieh ghashghaei soheila ghassamipour

a green and convenient méthode for the synthesis of  a variety of xanthene derivatives by condensation reaction between aldehydes and β-naphthol or dimedone in an micellar solution of sodium dodecylphosphonate is described. this method offers several advantages, such as using of a cheap and environmentally benign reaction media, low loadings of sodium dodecylphosphonate as catalyst and easy wor...

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