Figure 2
UV-vis spectroscopic behaviors of EtOH, -OH, and -CH3 on TCA. (a) The maximum UV-vis peaks of TCA was located 301 nm (solvent: ultra pure water, H2O) and 316 nm (solvent: EtOH, CH3CH2OH, 99.7%), respectively. (b) UV-vis spectroscopic behaviors of ultra pure water (H2O), methanol (CH3OH, 99%), EtOH (CH3CH2OH, 99.7%), n-propyl alcohol (CH3(CH2)2OH, 99%), n-butyl alcohol(CH3(CH2)3OH, 99%), n-pentanol (CH3(CH2)4OH, 99%), and n-hexyl alcohol (CH3(CH2)5OH, 99%) on TCA (97%), respectively. (c) UV-vis spectroscopic behaviors of ultra pure water (H2O), benzyl alcohol (C6H5CH2OH, 99%), 2-phenylethanol (C6H5CH2CH2OH, 99%), phenoxyethanol (C6H5OCH2CH2OH, 99%) on TCA (97%), respectively. (d) UV-vis spectroscopic behaviors of ultra pure water (H2O), glycol (HOCH2CH2OH, 99%), and glycerol (HOCH2CHOHCH2OH, 99%) on TCA (97%), respectively. (e) UV-vis spectroscopic behaviors of ultra pure water (H2O), n-hexane (CH3(CH2)4CH3, 99%), n-heptane (CH3(CH2)5CH3, 99%), n-octane (CH3(CH2)6CH3, 99%), and n-nonane (CH3(CH2)7CH3, 99%) on TCA (97%), respectively. (f) UV-vis spectroscopic behaviors of ultra pure water (H2O), n-hexane (CH3(CH2)4CH3, 99%), and cyclohexane (C6H12, 99%) on TCA (97%), respectively. (g) UV-vis spectroscopic behaviors of ultra pure water (H2O), n-propyl alcohol (CH3CH2CH2OH, 99%), and isopropanol ((CH3)2CHOH, 99%) on TCA (97%), respectively.
