Using Lanthanum Fluoride Fine Particles as Stationary Phase for Thin-Layer Chromatography/Fourier Transform Infrared Spectroscopy Analysis

2014 ◽  
Vol 27 (2) ◽  
pp. 80-83 ◽  
Author(s):  
Qing Zhu ◽  
Haijun Wu ◽  
Fang Wang ◽  
Anqi He ◽  
Kun Huang ◽  
...  
Keyword(s):  
Fourier Transform ◽  
Infrared Spectroscopy ◽  
Thin Layer ◽  
Stationary Phase ◽  
Thin Layer Chromatography ◽  
Fourier Transform Infrared Spectroscopy ◽  
Fine Particles ◽  
Lanthanum Fluoride ◽  
Spectroscopy Analysis ◽  
Layer Chromatography

scholarly journals Synthesis of Malononitrile-Condensed Disperse Dyes and Application on Polyester and Nylon Fabrics

2014 ◽  
Vol 2014 ◽  
pp. 1-8 ◽  
Author(s):  
Yusuf Y. Lams ◽  
P. O. Nkeonye ◽  
K. A. Bello ◽  
M. K. Yakubu ◽  
A. O. Lawal
Keyword(s):  
Fourier Transform ◽  
Infrared Spectroscopy ◽  
Thin Layer ◽  
Thin Layer Chromatography ◽  
Fourier Transform Infrared Spectroscopy ◽  
Barbituric Acid ◽  
Disperse Dyes ◽  
Visible Absorption ◽  
Layer Chromatography ◽  
Active Methylene

An active methylene compound, malononitrile, was introduced into the structures of a series of disperse dyes previously prepared by coupling phloroglucinol, barbituric acid, and α and β-naphtho to 4-amino-3-nitrobenzaldehyde. The dyes were purified by recrystallization from ethanol. The purity of the dyes was examined by thin-layer chromatography (TLC) and the dyes were characterized by visible absorption and Fourier transform infrared spectroscopy (FTIR). The malononitrile-condensed dyes produced deeper colours and shades with better fastness to wash, light, and perspiration on application to polyester and nylon fabrics when compared to their uncondensed analogue.

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