Fractional composition histograms

Figure 6. Fractional Composition Histograms from Four Replicate Analyses of Aroclor Mixture.

Figure 13. Fractional Composition Histograms of Used Transformer Fluid and Aroclors.

The samples of unknown composition—21-23 and samples 1-20, 24-34 (Appendix I) were those of Aroclors of variable composition. Variables 5-73 are isomer concentrations (Variable 74, the total PCB concentration in ppm was not included in the analysis). Variables 5-73 represent the fractional composition or isomer proportional concentration values. Representative concentration histograms of the data set are presented in Figure 13. Four PLS components were extracted and then used to estimate the Aroclor content of the unknowns and of a standard sample (No. 24). The Aroclor standard is a mixture of three Aroclors in the ratio of 033 0.33 0 0.33. Chromatograms of the samples for which the PLS estimates were made (Table VI) were similar when compared to a chromatogram of a similar mixture of standards. 

Figure 5.15. Plot of 5mC vw GC for compositional DNA fractions from Xenopus, chicken, mouse and man (left-hand scale). The histograms indicate 5mC levels. Least square lines through the points (and their equations) are shown only filled circles were used in drawing the lines. The Xenopus (broken) line is also shown in the other diagrams for comparison. Likewise, the mouse and chicken lines are shown in the human diagram. (From Caccio et al., 1997).

Figure 9.12. A. Analytical CsCI profiles of unfractionated (total) nuclear DNAs from T. hrucei and T. equiperdum and of the compositional fractions obtained by preparative centrifugation in a CS2SO4/BAMD gradient. B. Histograms displaying the relative amounts of the major DNA components of T. hrucei and T. equiperdum, as estimated from the data of A. In T. equiperdum, fractions 2 and 3 and fractions 8 and 9, respectively, were pooled because of their very close modal buoyant densities. Likewise, in T. hrucei, fractions 1, 2 (except for the 1.708 g/cm component) and 3, and fractions 10 and 11, respectively, were...

F re 3.14 Results obtained from AEM analysis of a Pt-Rh/Al203 NO reduction catalyst (mass fraction of Ptand Rh 0.61 and 0.40, respectively) obtained by Lyman et A plot of particle composition vs. size (a), a histogram showing the num-... 

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