Reaction of nitrous oxide with copper surfaces. Application to the determination of free-copper surface areas

1969 ◽  
Vol 65 ◽  
pp. 2465 ◽  
Author(s):  
J. J. F. Scholten ◽  
J. A. Konvalinka
Keyword(s):  
Nitrous Oxide ◽  
Copper Surface ◽  
Copper Surfaces ◽  
Surface Areas

Parallelized N2O Frontal Chromatography for the Fast Determination of Copper Surface Areas

2008 ◽  
Vol 10 (3) ◽  
pp. 387-390 ◽  
Author(s):  
Stefan Olejnik ◽  
Christian Baltes ◽  
Martin Muhler ◽  
Ferdi Schüth
Keyword(s):  
Copper Surface ◽  
Fast Determination ◽  
Surface Areas ◽  
Determination Of Copper ◽  
Frontal Chromatography

On the determination of copper surface area by reaction with nitrous oxide

1983 ◽  
Vol 7 (1) ◽  
pp. 75-83 ◽  
Author(s):  
J.W. Evans ◽  
M.S. Wainwright ◽  
A.J. Bridgewater ◽  
D.J. Young
Keyword(s):  
Nitrous Oxide ◽  
Surface Area ◽  
Copper Surface ◽  
Copper Surface Area ◽  
Determination Of Copper

Simultaneous Sorption of Chelates of Elements with Organic Reagents on Amberlite XAD-2 as a Preconcentration Step for the Emission Spectrometric Determination of the Elements

1993 ◽  
Vol 58 (8) ◽  
pp. 1821-1831 ◽  
Author(s):  
Jaroslav Jambor ◽  
Tomáš Javorek
Keyword(s):  
Nitrous Oxide ◽  
Argon Plasma ◽  
Electric Arc ◽  
Emission Spectrometry ◽  
Organic Reagents ◽  
Inductively Coupled ◽  
Simultaneous Sorption

The macrophorous hydrophobic sorbent Amberlite XAD-2 proved to be well suited to the preconcentration of minority amounts of Al, Au, Cd, Co, Cr, Cu, Fe, Mn, Ni, Pb, Sn, Ti and V in the form of their chelates with organic reagents. From among 14 reagents tested, 8-hydroxyquinoline and diethyldithiocarbamate appeared most suitable for the quantitative sorption up to level of 1 μg l-1 of analyte. Emission spectrometry served as the analytical finish; the nitrous oxide-acetylene flame, electric arc and inductively coupled argon plasma were chosen according to the nature of the element. The procedure is convenient for the determination of the minority analytes in waters

Studies on the surface area of zeolites, as determined by physical adsorption and X-ray crystallography

1968 ◽  
Vol 46 (10) ◽  
pp. 1695-1701 ◽  
Author(s):  
D. J. C. Yates
Keyword(s):  
Surface Area ◽  
Physical Adsorption ◽  
Independent Method ◽  
Linear Portion ◽  
Adsorbed Molecules ◽  
X Ray ◽  
X Ray Crystallography ◽  
Surface Areas

The determination of the surface areas of zeolites is discussed. It is shown that it is incorrect to use the multilayer isotherm method of Brunauer, Emmett, and Teller for solids where only little more than one monolayer can be adsorbed, in cavities little larger than the adsorbed molecules. The areas of such materials can, however, be determined from the beginning of the linear portion of their isotherms (point B). In addition, X-ray spectra can provide an independent method of measuring changes in the surface areas of zeolites.

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