F－800自动血球计数仪作白细胞分析时，是经过其比较器进行白细胞核的鉴别，校正协同误差．获得分布曲线（直方图），白细胞计数范围为高于此水平的微粒数．但是，在日常工作时发现有时其下限自动鉴别水平大于60fl，造成白细胞计数的分布曲线有效范围的一部分呈虚图（如图1、2 When the F-800 automatic blood cell counter is used for white blood cell analysis, it is through its comparator for the identification of the white blood cell nucleus, correcting for synergistic errors. Get the distribution curve (histogram), the number of white blood cells above the level of the number of particles. However, in daily work, it is sometimes found that the lower limit of the automatic identification level is greater than 60fl, resulting in a portion of the effective range of the distribution curve of white blood cell counts is a virtual map (Figure 1, 2