... C10H8 28 6 9, 300 3 12 2 89 Toluene C6H5CH3 20 7 7,000 26 1 300Chlorobenzene C6H5Cl 21 0 7,600 26 5 24 0Phenol C6H5OH 21 1 6 ,20 0 27 0 1,450Phenolate ion C6H5O− 23 5 9, 400 28 7 2, 600Thiophenol ... bulletin, 99 -0 6 (page 2, Figure 2) , http://www.hplcsupply.com/pdf/App _9. pdf#search=‘Biobasic %20 and %2 099 06 %20 and %20 henry’.15. M. L. Mayer, Selecting filters for chromatographic applications, LC-GC ... DEVELOPMENTTABLE 8 -9 . Molar Absorptivity Values for Neutral, Acid, and Basic SpeciesaMolecularE 2 Band B BandCompound Formula λ max (nm) ε max λ max (nm) ε max Benzene C6H6 20 4 7 ,90 0 25 6 20 0Naphthalene...