Perbenzoic acid analysis

Pentamethylene dibromide, see 1 5-Dibromopentane Pentamethylene dicyanide, 493 2-Pentene, 239 4-Pentyn-l-ol, 896, 901 Peracetic acid oxidation, 755, 768, 893 Perbenzoic acid, 807, 808, 894 analysis of, 809 Performic acid, 893, 894 Periodic acid, 1070 reagent, 1070 ... 

In the flask containing potassium iodide solution for the determination of unreacted ozone a great deal of liberated iodine was found. Thus a considerable proportion of ozone passed through the solution of aldehyde, the latter appearing to be only slightly sensitive to the oxidizing action of ozone. The analysis of the aldehyde solution showed clearly, however, that it had been heavily oxidized to benzoic acid and perbenzoic acid, and much more oxygen had been taken up in this oxidation than corresponded to the amount of ozone consumed. 

In the special case under discussion the amount of bound oxygen due to the ozone accelerator effect was determined not by chemical analysis but from spectroscopic data, by calculating the perbenzoic acid concentration, C, from the well-known formula ... 

The examples mentioned here for RP-HPLC analysis of monosaccharides in the form of their perbenzoates and amino acids as A/-phenylthiocarbamoyl derivatives (Table 1) satisfy both principal criteria introducing the chromophores into molecules of analytes (CeHsCO- and CeHsNH-CS-NH-) and optimization of their retention parameters. 

---