Calcination and alkali metal modification of alumina as solid stationary phase in GC
Journal Title: INTERNATIONAL JOURNAL OF COMPUTERS & TECHNOLOGY - Year 2013, Vol 11, Issue 6
Abstract
Alumina has unique textural properties and functionalized surface. The single or multi-treatments of alumina with calcination and alkali metal treatment (NaCl) are of prime one importance not only for determining the structure, textural and surface chemistry of the phase but also to understand how modification is related to the changes in these properties and also to the change in its performance as solid stationary phase. Thermodynamic parameters (ΔH, ΔG and ΔS) were determined using n-hexane as a probe in order to show the adsorbate-adsorbent interaction. It was observed that the non-polar solutes could be separated independent of the reactivity and porosity of the alumina surfaces. Alkali metal modification of the calciened alumina is a selective stationary phase for eluting natural gas sample exhibiting good separation.
Authors and Affiliations
Ashraf Yehia El-Naggar
Keywords
Related Articles
- EP ID EP650329
- DOI 10.24297/ijct.v11i6.3040
- Views 112
- Downloads 0
Design and Implementation of RSA Algorithm using FPGA
RSA cryptographic algorithm used to encrypt and decrypt the messages to send it over the secure transmission channel like internet. The RSA algorithm is a secure, high quality, public key algorithm. In this paper, a ne...
SR-AODV: A Stable Route-AODV Protocol for Mobile Ad hoc Network
Mobile ad-hoc network is the collection of node whichdynamically forms a temporary network without the use ofany existing network infrastructure or centralizedadministration. When the mobility in the network is high andt...
Survey on the Research Challenges of Radio Resource Management in LTE-A and the Current Proposed Solutions for these Challenges
Long Term Evolution-Advanced (LTE-Advanced) has been recently submitted by the 3rd Generation Partnership Project (3GPP) to the International Telecommunication Union (ITU) as one of the candidates 4G technologies. LTE-Ad...
EXTENDED SUBCLASS OF CYCLIC SEPARABLE GOPPA CODES
In 2013[4]a new subclass of cyclic Goppa code with Goppa polynomial of degree 2 is presented by Bezzateev and Shekhunova. They proved that this subclass contains all cyclic codes of considered length. In the present work...
The use of cloud technology in Corporate Information Systems
For automation industry, Information Technology (IT) is an essential production factor, but also a major expense post. Because cloud computing promises to deliver IT services more flexibly and cost-efficiently, it for au...