C_5烃中双环戊二烯过氧化物的分光光度测定

Spectrophotometric Determination of Peroxydicycolpentadiene in C_5 Hydrocarbons

本文报道了C5烃中双环戊二烯过氧化物（PDCPD）快速准确的分析方法。在HOC2H4OCH3－H2O介质中，PDCPD与KI反应生成I3-，而I3-与PDCPD的量成正比，在λmax=352nm处可进行PDCPD的光度测定，测定下限为3．2×10－5mol／L，SD=0．34（10－5mol／L），RSD＝1．40％。

A rapid and accurate spectrophotometric determination of perbxydicyclopentadiene (PDCPD) in C5 hydrocarbons was reported. PDCPD reacts with KI in HOC2H4OCH3-H2O medium, giving out I3-. The quantity of this I3- is proportional to the concentration of PD CPD (λmax=352 nm). The determination limit 3. 2 × 10-5 mol/L, standard deviation 0. 34 × 10-5 mol/L and relative standard deviation 1. 40% are obtained.