retentieindex
retentieindex is a term used in various fields, most notably in chromatography, to quantify the retention of a substance as it moves through a stationary phase. In chromatography, a sample is introduced into a mobile phase that flows over a stationary phase. Different components of the sample interact with the stationary phase to varying degrees, causing them to elute (exit the system) at different times. The retention index provides a standardized way to express this elution behavior.
In gas chromatography (GC), the most common application of retention index, it is typically defined relative
The retention index can also be applied in other chromatographic techniques, such as liquid chromatography, though