Two stage derivatization with N-(tert.-butyldimethylsilyl)- N-methyl-trifluoroacetamide (MTBSTFA) and N-methyl-bis-(trifluoroacetamide) (MBTFA) for the gas-chromatographic analysis of OH-, SH- and NH-compounds

1994 ◽  
Vol 348 (5-6) ◽  
pp. 364-370 ◽  
Author(s):  
K. Schoene ◽  
H.-J. Bruckert ◽  
J. Steinhanses ◽  
A. K�nig
Keyword(s):  
Chromatographic Analysis ◽  
Two Stage ◽  
Gas Chromatographic Analysis

Application of a two-stage scheme of gas chromatographic analysis of unstable reforming catalysate

1970 ◽  
Vol 6 (9) ◽  
pp. 704-706
Author(s):  
A. P. Dorokhov ◽  
G. V. Emel'yanova ◽  
I. I. Ioffe ◽  
N. P. Mel'nikova ◽  
V. E. Shefter
Keyword(s):  
Chromatographic Analysis ◽  
Two Stage ◽  
Gas Chromatographic Analysis ◽  
Stage Scheme

The mechanism of formation of 2,7-dimethyl-2,6-octadiene in the synthesis of 3-methylene-7-methyl-1,6-octadiene

1983 ◽  
Vol 48 (7) ◽  
pp. 1864-1866
Author(s):  
Jan Bartoň ◽  
Ivan Kmínek
Keyword(s):  
Mass Spectrometry ◽  
Nmr Spectroscopy ◽  
Alkali Metal ◽  
Chromatographic Analysis ◽  
Solid Phase ◽  
Reaction Pathway ◽  
Mechanism Of Formation ◽  
Gas Chromatographic Analysis ◽  
C Nmr ◽  
Visual Observations

2,7-Dimethyl-2,6-octadiene is formed in the catalytic solution for the dimerization of 2-methyl-1,3-butadiene to β-myrcene (3-methylene-7-methyl-1,6-octadiene), as revealed by mass spectrometry and 13C NMR spectroscopy. Visual observations together with the results of gas chromatographic analysis of the catalytic solution suggest that the formation of 2,7-dimethyl-2,6-octadiene is associated with the transition of the alkali metal (sodium) from the solid phase into the solution. A reaction pathway is suggested accounting for the formation of 2,7-dimethyl-2,6-octadiene in the system.

Gas chromatographic analysis of water phenolic pollutants using acid-washed graphitised carbon black

1981 ◽  
Vol 14 (2) ◽  
pp. 86-88 ◽  
Author(s):  
A. Di Corcia ◽  
R. Samperi ◽  
E. Sebastiani ◽  
C. Severini
Keyword(s):  
Carbon Black ◽  
Chromatographic Analysis ◽  
Gas Chromatographic Analysis ◽  
Phenolic Pollutants
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