Glucose infrared

Biosensors (qv) and DNA probes ate relatively new to the field of diagnostic reagents. Additionally, a neat-infrared (nit) monitoring method (see Infrared TECHNOLOGY AND RAMAN SPECTROSCOPY), a teagenfless, noninvasive system, is under investigation. However, prospects for a nit detection method for glucose and other analytes ate uncertain. 

Glucose, fructose Infrared lamp or 170 °C each for 3 min Heating produced stable bluish-white fluorescence (Xexc = 365 nm and Xn > 400 nm, cut off filter K 400), detection limits 5-10 ng. [33]... 

Sugars, e.g. glucose, rham-nose, xylose etc. 160°C, 3-4 min or infrared lamp Induction of brilliant stable fluorescence XoK = 365 nm and An >400 nm, (cut off Alter K 400), sugar alcohols do not fluoresce detection limits 5-10 ng. [2]... 

Intensified metabolic control, especially in case of diabetes, demands minimal-invasive or non-invasive methods of analytical measurement. For this goal, a method has been developed to measure the blood glucose content in vivo, in direct contact with the skin, by means of diffuse reflection near infrared (NIR) spectroscopy on the basis of multivariate calibration and neural networks (Muller et al. [1997] Fischbacher et al. [1997] Danzer et al. [1998]). Because no patients with any standard blood glucose value are available in principle, a method of indirect calibration has... 

Danzer K, Fischbacher C, Jagemann K-U, Reichelt KJ (1998) Near-infrared diffuse reflection spectroscopy for non-invasive blood-glucose monitoring. LEOS Newslett 12(2) 9... 

Fischbacher C, Jagemann K-U, Danzer K, Muller UA, Papenkordt L, Schuler J (1997) Enhancing calibration models for non-invasive near-infrared spectroscopical blood glucose determination. Fresenius J Anal Chem 359 78... 

Jagemann K-U, Fischbacher C, Danzer K, Muller UA, Mertes B (1995) Application of near-infrared spectroscopy for non-invasive determination of blood/tissue glucose using neural networks. Z Physikal Chem 191 179... 

Mtlller UA, Mertes B, Fischbacher C, Jagemann K-U, Danzer K (1997) Non-invasive blood glucose monitoring by means of near infrared spectroscopy methods for Improving the reliability of the calibration models. Int J Artific Organs 20 285... 

Malin S.F., Ruchti T.L., Blank T.B., Thennadil S.N., Monfre S.L., Noninvasive prediction of glucose by near-infrared diffuse reflectance spectroscopy, Clin. Chem. 1999 45 (9) 1651-1658. 

Rottenbacher, L., Behlau, L. and Bauer, W., The application of infrared gas analyzers for the fast determination of kinetic parameters for ethanol production from glucose, ]. Biotech., 2 (1985a) 137-147. 

Both APPL s produce similar patterns when analyzed by Fourier Transform infrared (FTIR) spectroscopy, which are quite different from the spectrum of Indulin ATR (Figure 4). Table V sums up the major differences between these spectra. Figure 5 provides further proof that there is no contamination by yeast extract the pattern of APPL produced by S. badius using glucose as carbon source is identical to that of APPL obtained using yeast extract (same data for S. viridosporus not shown). 

Cellobiose Octaacetate and Glucose Pentaacetate. The results on both compounds were similar. Samples irradiated at 253.7 and 313 mfi, both in the presence of oxygen and in vacuum, were saponified. Infrared analysis of the saponified residues showed that all samples had carbonyl absorption at 5.76 to 5.78 microns, owing to lactones, ketones,... 

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