نتایج جستجو برای: analytical chemistry

تعداد نتایج: 272346  

2016
Assem Barakat Saied M. Soliman Hazem A. Ghabbour Abdullah Mohammed Al-Majid Mohammad Shahidul Islam Ayman A. Ghfar

Assem Barakat 1,3,*, Saied M. Soliman 2,3,*, Hazem A. Ghabbour 4,5, M. Ali 1, Abdullah Mohammed Al-Majid 1, Mohammad Shahidul Islam 1 and Ayman A. Ghfar 1 1 Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia; [email protected] (M.A.); [email protected] (A.M.A.-M.); [email protected] (M.S.I.); [email protected] (A.A.G.) 2 Departm...

2006
Mihkel Koel Mihkel Kaljurand

The introduction of the dimension of green chemistry into the assessment of analytical methods should be a natural development trend in chemistry and should coincide with its general policy. Some of the principles of green chemistry—such as prevention of waste generation; safer solvents and auxiliaries; design for energy efficiency; safer chemistry to minimize the potential of chemical accident...

2000
Peter D. Wentzell Christopher D. Brown

Journal: :Annual review of analytical chemistry 2011
Adam Johan Bergren Richard L McCreery

This review discusses the analytical characterization of molecular electronic devices and structures relevant thereto. In particular, we outline the methods for probing molecular junctions, which contain an ensemble of molecules between two contacts. We discuss the analytical methods that aid in the fabrication and characterization of molecular junctions, beginning with the confirmation of the ...

2009
IAN A. SUTHERLAND

Countercurrent chromatography (CCC) is a generic term covering all forms of liquid–liquid chromatography that use a support-free liquid stationary phase held in place by a simple centrifugal or complex centrifugal force field. Biphasic liquid systems are used with one liquid phase being the stationary phase and the other being the mobile phase. Although initiated almost 30 years ago, CCC lacked...

2009
Richard J. C. Brown

Modern scientific endeavour is increasingly delivered within an interdisciplinary framework. Analytical environmental chemistry is a long-standing example of an interdisciplinary approach to scientific research where value is added by the close cooperation of different disciplines. This editorial piece discusses the rise of environmental analytical chemistry as an interdisciplinary activity and...

1997
Chien-Jung Huang C. J. Umrigar

We present nearly local definitions of correlation energy density, and its potential and kinetic components, and evaluate them for several two-electron systems. This information should provide valuable guidance in constructing better correlation functionals than those in common use. In addition, we demonstrate that the quantum chemistry and the density-functional definitions of the correlation ...

2013
David O'Hagan

It is a pleasure to introduce the 3rd in the series of Thematic Issues on organo-fluorine chemistry for the Beilstein Journal of Organic Chemistry (BJOC). These series have become progressively more successful over time in terms of the number and quality of the contributions received. It is also pleasing to note that the profile and impact factor of the journal has increased steadily over this ...

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