Glucose infrared absorption spectrum

Another unique compound was found7(g) among the products of the reaction between 3,5,6-tri-O-methyl-D-glucose and acetylmethylene-phosphorane. An inflection at 222 nm in the electronic spectrum, and strong infrared absorption at 5.8 /am, indicated an a,/3-unsaturated, cyclic ketone structure.89 When this compound was allowed to react with methylmagnesium bromide, the product showed7 8 an absence... [Pg.289]

Amerov AK, Chen J, Arnold MA. Molar absorptivities of glucose, water and other biological molecules over the first overtone and combination regions of the near infrared spectrum. Applied Spectroscopy 2004, 58, 1195-1204. [Pg.388]

Infrared spectroscopy has been used to show that the acyclic form of this sugar is not present to any appreciable extent because it equilibrates to give different cyclic forms. The acyclic form of the glucose has an aldehyde group present and thus should obviously produce a significant carbonyl absorption in its IR spectrum. As the spectrum does not show this absorption, it is clear that the acyclic form cannot be present... [Pg.144]

Noninvasive techniques include infrared, Raman spectroscopy, polarimetry, l ht scattering, photoacoustic spectroscopy, polarization technique, and impedance. In infiared spectroscopy, absorption or emission data in the region of spectrum are compared to known data for glucose. In Raman spectroscopy, laser light is used to... [Pg.38]

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