【求助】保留指数（RI）是如何获得并用于定性分析的？

应助达人

抱歉。应为RI=retention index。计算公式如下：
The Kovats index is used for the identification of single components

tra
log-----
trX
Lx=100*（y-X)*-------------+100*X
try
log------
trX

x = number of C-atoms of the lower hydrocarbon
y = number of C-atoms of the higher hydrocarbon
tra = retention time of the unknown component
trx = retention time of the lower component
try = retention time of the higher component