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Carbon compounds near-infrared spectroscopy

Bilia et al. reported the efficiency of two-dimensional homonuclear H- H correlated spectroscopy and two-dimensional reverse heteronuclear shift correlation spectroscopy in evaluating the composition of phloroglucinols, flavonols and naphthodianthrones in a dried extract of St John s wort. They successfully assigned carbon resonances for these three classes of compounds and also identified shikimic and chlorogenic acids, sucrose, lipid, polyphenols and traces of solvent (methanol) during the extraction process. This rapid technique is an alternative to HPLC, TLC or capillary GC for the analysis of St John s wort preparations. Another report utilized near-infrared reflectance spectroscopy (NIRS) for the... [Pg.38]

See other pages where Carbon compounds near-infrared spectroscopy is mentioned: [Pg.27]    [Pg.2275]    [Pg.885]    [Pg.182]    [Pg.479]    [Pg.825]    [Pg.116]    [Pg.149]    [Pg.331]    [Pg.154]    [Pg.1969]    [Pg.770]    [Pg.266]    [Pg.156]    [Pg.90]    [Pg.140]   


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