| Budget Amount *help |
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2013: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2012: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2011: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2010: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2009: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
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| Research Abstract |
By a use of isothermal capillary gas chromatography, the relative capacity factors, kR';, were investigated in the range from 453.2 K to 503.2 K for all 46 pentachlorobiphenyl isomers, PeCBs. The relative change of the enthalpy, ddH, and the entropy, ddS, were calculated from van't Hoff plots, and the square of correlation coefficient, r2, between them was 0.970. Iso-elution temperature, IET, in the plot of ln kR'; and 1/T was evaluated on the basis of the methods proposed by Krug et al. It was found that (i) the relationship between ddH and ddGThm was also approximately linear, (ii) a precise compensation relationship between ddH and ddS was not identified, but the difference from the linearity was closely depends on the number of a pair of chlorine substituents bound to proximitive positions, NpxCl, and (iii) an IET was not observed in the van't Hoff plots for all PeCBs, but a classification of the data with NpxCl elicit a plausible IET.
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