Quantification of surface functional groups on silica nanoparticles: comparison of thermogravimetric analysis and quantitative NMR

The Analyst ◽  
2019 ◽  
Vol 144 (18) ◽  
pp. 5589-5599 ◽  
Author(s):  
Filip Kunc ◽  
Vinod Balhara ◽  
Ying Sun ◽  
Malgosia Daroszewska ◽  
Zygmunt J. Jakubek ◽  
...  
Keyword(s):  
Thermogravimetric Analysis ◽  
Silica Nanoparticles ◽  
Functional Group ◽  
Evolved Gas Analysis ◽  
Potential Method ◽  
Gas Analysis ◽  
Evolved Gas ◽  
Ft Ir ◽  
Modified Silica Nanoparticles ◽  
Surface Modified

Thermogravimetric analysis (TGA) coupled with evolved gas analysis-FT-IR has been examined as a potential method to study the functional group content for surface modified silica nanoparticles.

Fourier Transform Infrared Evolved Gas Analysis: Additional Considerations and Options

1981 ◽  
Vol 35 (1) ◽  
pp. 95-101 ◽  
Author(s):  
John O. Lephardt ◽  
Robert A. Fenner
Keyword(s):  
Fourier Transform ◽  
Functional Group ◽  
Evolved Gas Analysis ◽  
Group Analysis ◽  
Fourier Transform Infrared ◽  
Gas Analysis ◽  
Evolved Gas ◽  
Qualitative And Quantitative ◽  
Yield Information ◽  
Functional Group Analysis

The technique of Fourier transform infrared evolved gas analysis described previously has been expanded both with respect to data processing options and to application areas. In this paper several of these additional options and applications are described. For improved qualitative and quantitative capabilities, smoothing and integration have been found beneficial. The use of interferometric processing permits compound specific profiles to be generated quickly. By considering reaction properties, the operations of spectral subtraction and factor analysis can be shown to yield information on both reaction stoichiometries and the number of reactions occurring vs temperature. In the area of applications, the examination of polymer chain length, functional group analysis, and intermolecular interactions are discussed.

scholarly journals Application of Fourier Transform Infra-red Evolved Gas Analysis (FT-IR-EGA) to the Study of Tobacco Curing

1988 ◽  
Vol 14 (2) ◽  
pp. 85-91
Author(s):  
RA Fenner ◽  
J Lyons-Hart ◽  
JO Lephardt ◽  
DM Teng
Keyword(s):  
Evolved Gas Analysis ◽  
Simultaneous Detection ◽  
Three Dimensional ◽  
Gas Analysis ◽  
Evolved Gas ◽  
Product Evolution ◽  
Ft Ir ◽  
Curing Method ◽  
Three Dimensional Presentation ◽  
Leaf Composition

AbstractFT-IR evolved gas analysis, a non-isothermal pyrolysis technique, is used to probe the changes in tobacco leaf composition which occur during flue- and air-curing. A unique perspective of major enzymatic processes and their dependencies on curing method is obtained through simultaneous detection of multiple pyrolytic products and three-dimensional presentation of the product evolution profiles. The conversion of starch to sugars, proteins to amino acids, and the relationships between these processes are explored.

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