نتایج جستجو برای: solvent

تعداد نتایج: 55449  

Journal: :Journal of Synthetic Organic Chemistry, Japan 1962

Journal: :Journal of Industrial & Engineering Chemistry 1915

Journal: :Journal of Japan Oil Chemists' Society 1970

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه رازی - دانشکده علوم 1392

a novel acrylic acid-functionalized fe3o4 magnetic nanoparticle with a core-shell structure was developed for utilization as a heterogeneous organosuperacid in chemical transformations. the structural, surface, and magnetic characteristics of the nanosized catalyst were investigated by various techniques such as transmission electron microscopy (tem), thermogravimetric analysis (tga), and ft-ir...

Journal: :Inorganics (Basel) 2021

Information resulting from a comprehensive investigation into the intrinsic strengths of hydrated divalent magnesium clusters is useful for elucidating role aqueous solvents on Mg2+ ion, which can be related to those in bulk solution. However, Mg–O and intermolecular hydrogen bond interactions ion have yet quantitatively measured. In this work, we investigated set 17 by means local vibrational ...

Journal: :Poultry science 1999
D U Ahn J I Lee C Jo J L Sell

A study was conducted to develop a solvent system that will clean egg yolk samples and concentrate cholesterol oxides effectively before analysis. Cholesterol oxide standards or lipid samples (0.2 g) loaded onto a silicic column were washed with a portion of Solvent I (hexane/diethyl ether, 9:1, vol/vol) and then with Solvent II. Four different Solvent II preparations (Solvent IIa, hexane:ethyl...

2017
Ian David Lockhart Igor Mitrofanov Sascha Sansonetti

This paper presents a systematic integrated framework for solvent selection and solvent design. The framework is divided into several modules, which can tackle specific problems in various solvent-based applications. In particular, three modules corresponding to the following solvent selection problems are presented: 1) solvent selection and design for organic synthesis, 2) solvent screening an...

Journal: :Chemical communications 2013
Dibakar Kumar Maiti Arindam Banerjee

A peptide based two component white light emitting system has been designed and developed on the basis of a co-assembly of a PDI containing peptide system as an acceptor and a stilbene containing peptide system as a donor in organic solvents.

Journal: :Chemical communications 2006
Sanzhong Luo Xueling Mi Song Liu Hui Xu Jin-Pei Cheng

A surfactant-type asymmetric organocatalyst (STAO) catalyzed highly efficient Michael addition to nitroalkenes with high stereoselectivities in water without using any organic solvents or additional additives.

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