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Influence of Co‐Solvent Concentration on the Properties of Dope Solution and Performance of Polyethersulfone Membranes

10-09-2013 | I. Ahmed, A. Idris, A. Hussain, Z. A. M. Yusof, M. Saad Khan, Chemical Engineering & Technology, 2013

Abstract Polyethersulfone (PES) dope solutions were prepared from mixtures of two solvents containing N,N‐dimethylformamide (DMF) as core solvent and acetone as co‐solvent (CS) in a closed heating system. PES asymmetric membranes were cast by a dry/wet phase inversion process. Complete ...

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Zinc(II) and Cadmium(II) Monohydroxide Bridged, Dinuclear Metallacycles: A Unique Case of Concerted Double Berry Pseudorotation

09-09-2013 | Daniel L. Reger; Andrea E. Pascui; Perry J. Pellechia; Mark D. Smith, Inorganic Chemistry, 2013

The reactions of M(ClO4)2·6H2O [M = Zn(II), Cd(II)] and the ligands m-bis[bis(1-pyrazolyl)methyl]benzene, Lm, or m-bis[bis(3,5-dimethyl-1-pyrazolyl)methyl]benzene, Lm*, in the presence of a base yield the hydroxide bridged dinuclear metallacycles [M2(μ-OH)(μ-L)2](ClO4)3, L = Lm, M = Zn(II) (1); L ...

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Simultaneous separation and determination of five organic acids in beverages and fruits by capillary electrophoresis using diamino moiety functionalized silica nanoparticles as pseudostationary phase

09-09-2013 | Author(s): Feng-Jie Liu , Guo-Sheng Ding , An-Na Tang, Food Chemistry, 2013

Publication date: 15 February 2014 Source:Food Chemistry, Volume 145 Author(s): Feng-Jie Liu , Guo-Sheng Ding , An-Na Tang A kind of novel diamino moiety functionalized silica nanoparticles with the diameter of ∼110nm was successfully prepared and characterised by transmission electron ...

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Structure Determination and Biochemical Characterization of a Putative HNH Endonuclease from Geobacter metallireducens GS-15

06-09-2013 | Shuang-yong Xu et al., PLoS ONE, 2013

by Shuang-yong Xu, Alexandre P. Kuzin, Jayaraman Seetharaman, Alice Gutjahr, Siu-Hong Chan, Yang Chen, Rong Xiao, Thomas B. Acton, Gaetano T. Montelione, Liang Tong The crystal structure of a putative HNH endonuclease, Gmet_0936 protein from Geobacter metallireducens GS-15, has been determined ...

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Sensors, Vol. 13, Pages 11797-11817: Automatic Determination of Validity of Input Data Used in Ellipsoid Fitting MARG Calibration Algorithms

05-09-2013 | Olivares, Alberto ; Ruiz-Garcia, Gonzalo ; Olivares, Gonzalo ; Górriz, Juan Manuel; Ramirez, Javier, Sensors, 2013

Ellipsoid fitting algorithms are widely used to calibrate Magnetic Angular Rate and Gravity (MARG) sensors. These algorithms are based on the minimization of an error function that optimizes the parameters of a mathematical sensor model that is subsequently applied to calibrate the raw data. ...

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Determination and Correlation of Solubilities of (S)-Indoline-2-carboxylic Acid in Six Different Solvents from (283.15 to 358.15) K

04-09-2013 | Jin-Qiang Liu; Xin-Xiang Cao; Baoming Ji; Bangtun Zhao, Journal of Chemical & Engineering Data, 2013

The solubilities of (S)-indoline-2-carboxylilc acid (SIn2CA) in six pure solvents including water, methanol, ethanol, 1-propanol, 2-propanol, and 1-butanol were determined from (283.15 to 358.15) K at atmospheric pressure using the synthetic method. The solubility was determined by a laser ...

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Simultaneous derivatization and air‐assisted liquid–liquid microextraction of some parabens in personal care products and their determination by GC with flame ionization detection

03-09-2013 | Mir Ali Farajzadeh, Elnaz Marzi Khosrowshahi, Parisa Khorram, Journal of Separation Science, 2013

A simultaneous derivatization/air‐assisted liquid–liquid microextraction technique has been developed for the sample pretreatment of some parabens in aqueous samples. The analytes were derivatized and extracted simultaneously by a fast reaction/extraction with butylchloroformate (derivatization ...

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Syntheses, characterization and reactivity of Lewis acid–base adducts based on B–N dative bonds

02-09-2013 | Author(s): Sudeshna Saha , Ravi Kumar Kottalanka , Tarun K. Panda , Klaus Harms , Stefanie Dehnen , Hari Pada ..., Journal of Organometallic Chemistry, 2013

Publication date: 15 November 2013 Source:Journal of Organometallic Chemistry, Volumes 745–746 Author(s): Sudeshna Saha , Ravi Kumar Kottalanka , Tarun K. Panda , Klaus Harms , Stefanie Dehnen , Hari Pada Nayek Three Lewis acid–base adducts [(PhBO)3·2hmt] (1), [(PhBO)3–hmt–(PhBO)3] ...

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New class of 2,5-di(2-thienyl)pyrrole compounds and novel optical properties of its conducting polymer

02-09-2013 | Author(s): Hakan Can Söyleyici , Metin Ak , Yüksel Şahin , Dilek Odacı Demikol , Suna Timur, Materials Chemistry and Physics, 2013

Publication date: 15 October 2013 Source:Materials Chemistry and Physics, Volume 142, Issue 1 Author(s): Hakan Can Söyleyici , Metin Ak , Yüksel Şahin , Dilek Odacı Demikol , Suna Timur New type 2,5-di(2-thienyl)pyrrole derivative namely ...

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Electrocatalytic activity of polymer-stabilized silver nanoclusters for hydrogen peroxide reduction

02-09-2013 | Author(s): Bang Lin Li , Jing Rong Chen , Hong Qun Luo , Nian Bing Li, Journal of Electroanalytical Chemistry, 2013

Publication date: 1 October 2013 Source:Journal of Electroanalytical Chemistry, Volume 706 Author(s): Bang Lin Li , Jing Rong Chen , Hong Qun Luo , Nian Bing Li Silver nanoclusters (AgNCs) synthesized by using polyethyleneimine as a stabilizing scaffold have been confirmed as a novel ...

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