Calculations: A retention index value may be calculated for a peak by comparing its retention characteristics to those of the two closest eluting components ... |
4 июн. 2015 г. · First, find two consecutive alkanes that are closest (in retention time) to the peak of the compound you want to calculate RI. |
For temperature program conditions, Equation 2b can be used. The retention index for a normal alkane is its number of carbons multiplied by 100. For example, n- ... |
We call the length of time between injection and position of the target compound peak a retention time. On the other hand, the time difference between the peak ... |
This study presents an analytical approach for calculating retention indices of unknown compounds in the 2nd dimension of GC×GC systems |
8 окт. 2015 г. · For each compound (peak) in your sample, find the two n-alkanes that immediately precede and follow its retention time, and apply the following equation. |
1 апр. 2021 г. · ... Gas chromatography' section a) Find the retention indices as provided in any non-polar column (DB-5, HP-5 etc) with temperature ramp. It ll ... |
Isothermal Kovats retention indices [1]. Ix = 100n + 100[log(tx) − log(tn)] / [log(tn+1) − log(tn)] · Non-isothermal Kovats retention indices (from temperature- ... |
The retention index values of compounds in the second dimension column of a GC×GC/TOF-MS system can be calculated from a second dimension retention map, which ... |
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