Peak symmetry and asymmetry (A)



Abstract Ideal chromatographic peaks are Gaussian and symmetrical. Asymmetrical peaks are said to either front or tail. Peak fronting or tailing can be caused by poor quality or polluted columns or by the dead volume of the system. Asymmetry can degrade the quality of a separation. The extent of asymmetry is expressed by either the asymmetry factory (As), or the tailing factor (Tusp or TF).

KeywordsFronting, Tailing, Symmetry, Asymmetry, Asymmetry factor (As), Tailing factor (Tusp), (TF), Resolution, Gaussian


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