Small mixtures

D. Analysis of Libraries Synthesized in the Format of Small Mixtures of 4-12 Compounds per Mixture... 

There are two approaches to analytical evaluation of OBOC libraries analysis of compounds from individuals bead [51,60] and analysis of mixtures of compounds detached from multiple beads [61, 62], It should be mentioned that analysis of mixtures from OBOC libraries is quite different from that described in section Analysis of Libraries Synthesized in the Format of Small Mixtures of 4-12 Compounds per Mixture. In the mixture of compounds cleaved from a few beads, which are randomly picked for analysis from the OBOC library, the structures of components of the mixture are unknown. Consequently, it is not possible to apply the strategy developed for the analysis of mixtures synthesized in spatially addressed format, which is based on information about the structures of components of each mixture. In the case of OBOC libraries, analysis of only very large mixtures is meaningful when the theoretical distribution of molecular weights within the whole library is compared with that experimentally observed [61, 62], The focus of this section is on characterization of OBOC libraries through analysis of individual beads. 

Minimum ignition Energy By igniting with a punctual ignition source (spark ignition source) energy is supplied to a small mixture volume for a short time only. 

The location and final value of N curve is related to u. When u value is small, mixture gas of N and Np could not be equilibrium at the height of whole bed and outlet position. Therefore, all catalysts along the height of whole bed can be reduced. When u is large, the gas composition would rapidly reach equilibrium. Thus, when reduction has happened in limited volume of bed, it will accelerate the accumulation of H2O products. 

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