为建立一种准确、可靠的方法来评价尿液分析仪性能,用标准的葡萄糖和维生素C系列浓度溶液作为测试样本,以每一等级界限值±5%的两点法和单一等级界限值的单点法对URISCAN S-300尿液分析仪进行评价。显示,当仪器性能良好时,单点法与两点法无区别;当仪器性能在一定范围波动时,两点法比单点法能更实际地反映仪器测定结果的可靠性;当仪器性能较差时,单点法不能提示仪器测试误差的大小,而两点法能提示我们仪器测试误差所超出的范围。 To establish an accurate and reliable method for evaluating the performance of urine analyzers, use standard glucose and vitamin C series concentration solutions as test samples, with a ±5% limit for each level of the two-point method and a single-level limit value. The single-point method evaluated the URISCAN S-300 urine analyzer. Shows that when the instrument performance is good, the single-point method is indistinguishable from the two-point method; when the instrument performance fluctuates in a certain range, the two-point method can reflect the reliability of the instrument measurement result more realistically than the single-point method; when the instrument performance is relatively When it is bad, the single-point method cannot indicate the size of the instrument’s test error, and the two-point method can prompt us to go beyond the scope of the instrument’s test error.