Infrared Spectral Analysis of Waste Pet Samples

Author(s):  
S. Vijayakumar ◽  
P.R. Rajakumar

There are fifteen waste PET bottles and a commercial grade ABS was collected from local supplier of Chidambaram town. The ABS was used to study the mechanical properties of PET blend composites. This study was performed by FT-IR spectroscopy. From the characteristics infrared stretching bands the mechanical properties of samples were discussed

2009 ◽  
Vol 23 (3-4) ◽  
pp. 165-174
Author(s):  
Tami H. Mysliwiec ◽  
Anthony F. Tierno ◽  
David J. Aurentz

A comparative analysis on cultures from wild-type and sporulation mutants ofBacillus subtilisinfected with pseudotemperate spore-converting bacteriophages was performed to discern differences in the chemical functionality of the cellular population. Variations in the cell surface chemistry ofB. subtiliscultures were analyzed using attenuated total reflectance (ATR) Fourier transform infrared (FT-IR) spectroscopy of dried sample films on optical plates. Comparison of wild-type and phage infected cultures revealed an increase in the amount of aliphatic ester in the infected populations. Spectral analysis of cultures from bacteriophage infected sporulation mutants,spo0Kandspo0Jrevealed varying levels of ester linkages.


2011 ◽  
Vol 25 (5) ◽  
pp. 1261-1269 ◽  
Author(s):  
Judith Piermaria ◽  
Alejandra Bosch ◽  
Adriana Pinotti ◽  
Osvaldo Yantorno ◽  
María Alejandra Garcia ◽  
...  

2021 ◽  
Vol 40 (3) ◽  
pp. 28-42
Author(s):  
Y. Walid AlBizreh ◽  
rasha Almostafa ◽  
Malak ALJoubbeh

The boiled tea leaves residual was modified with oleum of weight 1:1 to prepare an adsorbent that is capable to adsorb nicotine on its surface. The surface properties of the sample were studied by using the FT-IR spectroscopy after each treatment resulting obvious peaks that indicate the modification of the sample with oleum and the adsorption of nicotine on its surface. The concentration of nicotine in the prepared solutions was measured by the use of spectral analysis. The change of nicotine΄s adsorption was studied with the change of time. An increase in the adsorbed amount was noticed until the equilibrium was reached after 24hours. In addition, an increase of the adsorbed amount of nicotine with the increase of its initial concentration was observed at the room temperature. The experimental data corresponded with adsorption models of Langmuir, Freundlish and Temkin, besides, a mechanism of the adsorption of nicotine was suggested to occur with the participation of the two nitrogen atoms.


2008 ◽  
Vol 27 (16-17) ◽  
pp. 1709-1721 ◽  
Author(s):  
Karin M. Almgren ◽  
Margaretha Åkerholm ◽  
E. Kristofer Gamstedt ◽  
Lennart Salmen ◽  
Mikael Lindström

Author(s):  
Maciej Strzempek ◽  
Karolina A. Tarach ◽  
Kinga Góra-Marek ◽  
Fernando Rey ◽  
Miguel Palomino ◽  
...  

Abstract In this article the results of the statistical MC modelling corroborated by the FT-IR spectroscopy and gravimetric adsorption studies of the low aliphatic hydrocarbons in ZSM-5 (Si/Al =28 or...


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