Trennzahl number

Thermodynamics of zone migration, 54 Time constant (detector), 94 Trennzahl number, 18 Trouton s rule, 78, 148 Tswett, 1... 

The chromatogram that gives the Kovats relationship for a given stationary phase, can also serve to evaluate the performances of a column. For this, the separation number also known as the trennzahl number (TZ) is calculated from expressions 2.5 or 2.6. The two retention times occurring in these relationships relate to two successive alkanes differing by one carbon number (n and n + I atoms) or to two compounds of a similar type. The separation number indicates how many compounds could be baseline separated reasonably well by the column in the interval of retention time of these two reference compounds. The alkanes... 

Net retention time Replaced by Retention time Corrected retention time Temperature Trennzahl number (SN)... 

Mobile phase linear velocity. Table 3 Trennzahl Number (TZ) Comparison for Fast Pressure Ramps ... 

Trennzahl Number Tz. This term is comparable with separation number and is calculated from the resolution between two consecutive members of a homologous hydrocarbon series. It is usually considered as the number of peaks that could be placed between those two members of the series. It is used predominantly in capillary colunm work and is expressed as... 

Separation Number. We can also calculate a separation number SN or Trennzahl number TZ as another way of describing column efficiency (69). A separation number represents the number of possible peaks that appear between two n-paraffin peaks with consecutive carbon numbers. It may be calculated by... 

The Trennzahl number is, like the resolution, a means of assessing the efficiency of a column and is also used for temperature-programmed work. TZ gives the number of components which can be resolved between two homologous w-alkanes. 

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