Results 161 to 170 of about 667,427 (198)
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Philosophical aspects in physics and Analytical Chemistry
Fresenius' Journal of Analytical Chemistry, 1997Philosophical aspects connected with physical and analytical methods are reflected with special regard to high precision measurements.
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Journal of Chemical Education, 1975
A cracking catalyst is modified by impregnation with metal organic salts; a typical vapor phase organic reaction is performed over a catalyst at elevated temperatures; and reaction products are col...
Jo-Ann Rondini +2 more
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A cracking catalyst is modified by impregnation with metal organic salts; a typical vapor phase organic reaction is performed over a catalyst at elevated temperatures; and reaction products are col...
Jo-Ann Rondini +2 more
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Capillary Electrophoresis in the Analytical and Physical Chemistry Laboratories
Journal of Chemical Education, 1998Availability of capillary electrophoresis (CE) instrumentation allows students to have hands-on experience with this modern separation tool. They gain more than operational knowledge, however.
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Critical Reviews in Analytical Chemistry, 1986
The beginning studies of quantitative relationships between the structure of solutes and their chromatographic retention may be dated back as early as 1949. At that time, Martin,1 in his fundamental paper, suggested that a substituent changes the partition coefficient of a solute by a factor that depends on the nature of the substituent and both the ...
Roman Kaliszan, Richard A. Hartwick
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The beginning studies of quantitative relationships between the structure of solutes and their chromatographic retention may be dated back as early as 1949. At that time, Martin,1 in his fundamental paper, suggested that a substituent changes the partition coefficient of a solute by a factor that depends on the nature of the substituent and both the ...
Roman Kaliszan, Richard A. Hartwick
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Soil Organic Matter: Chemical and Physical Characteristics and Analytical Methods. A Review
Current Organic Chemistry, 2013Soil organic matter (SOM) holds a prominent place among the many indicators that are studied in relation to soil function. Different viewpoints are reflected in characterizing SOM, depending on the study procedures used, or the focus of the researchers.
Branco de Freitas Maia, C.M. +3 more
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Acoustic levitation in the field of analytical, physical, and atmospheric chemistry
The Journal of the Acoustical Society of America, 2004In this contribution an overview of fundamentals, possibilities, and applications of acoustic levitation in the field of analytical, physical, and atmospheric chemistry investigated by Neidhart and co-workers since the 1990s will be given. Started with sample preparation procedures in acoustically levitated drops, e.g., analytical enrichment, liquid ...
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ECS Meeting Abstracts, 2022
Whether it is the solubility of biopolymers, the rates of reactions, the physical properties of ionic liquids, or the formation of Deep Eutectic Solvents, the concept of the hydrogen bond often finds itself at the centre of explanations of ionic liquids’ behaviours.
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Whether it is the solubility of biopolymers, the rates of reactions, the physical properties of ionic liquids, or the formation of Deep Eutectic Solvents, the concept of the hydrogen bond often finds itself at the centre of explanations of ionic liquids’ behaviours.
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Journal of Chemical Education, 2011
A novel laboratory experiment was successfully implemented for undergraduate and graduate students in physical chemistry and nanotechnology. The main goal of the experiment was to rigorously determine the surface-enhanced Raman scattering (SERS)-based sensing capabilities of colloidal silver nanoparticles (AgNPs).
Ioana E. Pavel +8 more
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A novel laboratory experiment was successfully implemented for undergraduate and graduate students in physical chemistry and nanotechnology. The main goal of the experiment was to rigorously determine the surface-enhanced Raman scattering (SERS)-based sensing capabilities of colloidal silver nanoparticles (AgNPs).
Ioana E. Pavel +8 more
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Journal of Solid State Electrochemistry, 2011
After a brief introduction describing the main milestones in the development of DC polarography (DCP) as well as linear sweep (LSV) and cyclic voltammetry (CV), attention is paid to first applications of DCP in the reduction of organic compounds. In aqueous solutions the electron transfer (ET) is often accompanied by a proton transfer.
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After a brief introduction describing the main milestones in the development of DC polarography (DCP) as well as linear sweep (LSV) and cyclic voltammetry (CV), attention is paid to first applications of DCP in the reduction of organic compounds. In aqueous solutions the electron transfer (ET) is often accompanied by a proton transfer.
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