Spectra reduced

Fig. 11. Comparison of the difference CD spectra (reduced — oxidized) of the Rieske...

Cytochrome P-450 spectra (reduced + CO) show the 2-nm shift to the blue as a result of 3-MC induction. No such shift is observed in the trout, control rat, and PB-induced rat liver microsomes. Cytochrome P-450 EtNC spectra were recorded at pH 7.4, 2 min after the samples were reduced with dithionite. The absorption peaks are at 430 and 455 nm. For pH curves the A Absorbance represents A A (430—490 nm) and A A (455— 490 nm). The number of (+) signifies only the relative activity or inhibition with respect to BP hydroxylation and covalent binding of BP to DNA ( ++-(-) signifies 2-4 times and (+-H—h) signifies 10-36 times the control rat microsomal activity (n.d.), not determined. 

Met-0-Me /(R,R,R,R)-1 in the FAB spectra reduces to ca. 1.5 1, if ESI is used to generate the ionic complexes. This observation appears to be general for all host-guest pairs studied and it was attributed to the electrospray process, although no real... 

Figure 25B shows a series of UV/Vis difference spectra (reduced minus oxidized) for 500 pM cytochrome c in 10 mM Tris HCl, pH 7, buffer containing 0.3 M NaCl [124]. The measurements were made in the same thin-layer cell used for the voltammetry in Fig. 25A. The series of spectra were collected by measuring the absorption spectrum for the progressively reduced form of the protein in 50 mV increments from 0.30 to -0.20 V and subtracting the spectrum for the fully oxidized form at 0.40 V. The spectra were obtained after a 1-minute equilibration time at each potential. A series of positive and negative peaks are observed at the different potentials. The arrows depict the positive peaks that correspond to the reduced form of the protein, and the peaks increase in amplitude as the potential is made more negative.

Thus each of the 3N—6 vibrational modes can be interpreted as a collective oscillatory movement with frequency uii, = yT /27r and the problem of calculating vibrational spectra reduces to the diagonahzation of matrix W to find the set of eigenvalues xj. 

FIG. 13-12. Relaxation spectra reduced to 192°C of blends of two narrow-distribution polystyrenes with molecular weights 97.2 and 411 X 1(P. The outermost curves are for the individual components numbers on the others denote W2, the weight fraction of the component with higher molecular weight. (Prest. 5) Reproduced, by permission, from Polymer Journal. 

FIG. 17-43, Relaxation spectra, reduced to 25 C, of four poly(vinyl chloride) gels in di-2-ethylhexyl phthalate (solid curves) and two gels im dimethyl thianthrene (dashed curves). Points top black, calculated from G bottom black, from G . Numbers denote polymer concentration in volume percent. O- 72-its... 

After the spectra are simplified, the algorithm determines, for each of the 102,386 spectra indexed in the library, how many contain ions in common with the target spectrum. The relative abundances of the ions are not taken into account during this pre-selection step. The results of pre-selection are presented in Figure 8.2. We can see that among the 102,386 spectra reduced to 8 ions, 25 present 8 of the 16 ions of the target spectrum, 167 present 7 of the 16 ions of the target spectrum, and... 

FIGURE 8.2 Results of pre-selection operated by the program on spectra reduced to 8 ions. 

PHOTOMETRIZATION AND PROCESSING OF IR-LD SPECTRA REDUCING DIFFERENTIAL PROCEDURE... 

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