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Trifluoroacetyl derivatives, gas-liquid chromatography

Gas liquid chromatography (GLC) has found only limited application in lichen chemistry because most lichen substances are very polar and have low volatility. To overcome this problem, more volatile derivatives are used. Nishikawa et al. (1973) analyzed the low molecular weight carbohydrates of eight lichen species as their acetyl, trifluoroacetyl and trimethylsilyl derivatives by GLC under the following conditions Hj,... [Pg.107]

Determined by chiral gas chromatography (trifluoroacetyl derivative) or high-performance liquid chromatography (benzoyl derivative) analysis of the of the primary amine. [Pg.150]

See other pages where Trifluoroacetyl derivatives, gas-liquid chromatography is mentioned: [Pg.313]    [Pg.411]    [Pg.176]    [Pg.169]    [Pg.368]    [Pg.368]    [Pg.54]    [Pg.55]   
See also in sourсe #XX -- [ Pg.28 , Pg.112 ]



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