Temperature-programmed Kovats index. edit. IUPAC defines the temperature programmed chromatography Kovats index equation: I i = 100 [ n + t i − t n t n + ... |
23 июн. 2015 г. · Explanation: It depends on the fact that logt∝n , where t is the retention time and n is the number of carbon atoms in the alkane. |
Isothermal Kovats retention indices [1]. Ix = 100n + 100[log(tx) − log(tn)] / [log(tn+1) − log(tn)] · Non-isothermal Kovats retention indices (from temperature- ... |
24 мар. 2022 г. · Kovats index(I) is calculated as I= 100[n + (N – n) x (Log tr (unknown) – logtr (n))/ logtr(N) – logtr(n)) where n equals the number of carbon ... |
I T = 100 [ t R i T − t R z T t R ( z + 1 ) T − t R z T + z ] where t R T refers to the total retention times (chart distances) measured under the conditions of ... |
12 февр. 2016 г. · Excel workbook with integrated formula to calculate the retention index for temperature programmed chromatography. |
Calculations: A retention index value may be calculated for a peak by comparing its retention characteristics to those of the two closest eluting components ... |
3. The formula for calculation of other T values between and outside accepted reference points is in mo that for linear interpolation (1). |
7 июн. 2021 г. · In this article, we describe the training of a graph neural network model to predict the Kováts retention index for compounds in the NIST library. |
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