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Kaiser提出的ABT-概念,其基本表示式和一些导出式如下:式中,b为组分谱峰的半峰宽,b_0为非滞留物的谱峰的半峰宽,a为直线的斜率或为组分的保留时间每增加t_m半峰宽所增加的宽度,k为组分的容量比,t_m为死时间,n为理论塔板数,n_(eff)为有效塔板数,n_(real)为真实塔板数,在一定实验条件下,a、b_0、t_m和n_(real)均为常数。本文根据上述各式说明n或n_(eff)随k的变化关系,半峰宽b与保留时间t_r的关系以及推导出新的色谱峰容量表示式。
Kaiser proposed ABT concept, the basic expression and some derivations are as follows: Where, b is the half-width of the component spectrum peak, b_0 is the half-value width of the non-retentate peak, a is the slope of a straight line or Is the width increased by the increase of the half width of t_m for the retention time of the component, k is the capacity ratio of the component, t_m is the dead time, n is the theoretical plate number, n eff is the effective plate number, n_ (real) ) Is the real plate number, under certain experimental conditions, a, b_0, t_m and n_ (real) are constant. In this paper, according to the above description of the various types of n or n_ (eff) with changes in the relationship between the half-width b and retention time t_r the relationship between the relationship and the derivation of new chromatographic peak capacity expression.