SST Properties - Calculate By

Tabs: General - Parameters - Subparameters - Calculate By - Events

The method of an individual parameter calculation is selected on the SST Properties - Calculate By tab. The selection of the calculation method effects the following parameters: efficiency (Efficiency), length efficiency (Efficiency/Length), height equivalent of theoretical plate (HETP) and resolution (Resolution).

Note:

A mathematical formula for parameter calculation according to selected calculation methods are found in the chapter "Appendix - Mathematical Formulas".

SST Properties - Calculate By

EP/USP/JP (European Pharmacopoeia, United States Pharmacopoeia, Japanese Pharmacopoeia, also DAB, BP, ASTM)

Calculation of efficiency and related parameters based on the width at half height.

USP obsolete (United States Pharmacopoeia until 12/2022)

Calculation of efficiency and related parameters based on width given by intersection of tangents with baselines.

Calculation was unified with EP in 2022. The options is still present to preserve old results.

JP obsolete (Japanese Pharmacopoeia until 3/2006)

Calculation of efficiency and related parameters based on the width at half height.

Calculation was unified with EP in 2006. The options is still present to preserve old results.