一、前言每支离子选择电极的实际响应斜率,在一定允许范围内都存在差异。因此,在试样分析前通常要进行电极实际响应斜率的测定。为了省去这一步骤,可采用二次标准加入法。二次标准加入法的试验结果可由电子计算机用迭代法求解,但就目前许多试验室条件,还难以推广应用。也可用图算法求解,如赵藻藩等作出的计算图。但该图算法要查两张关系图,手续较繁。陈洪渊等提出具有系列曲线族(ΔE_1)的计算图,用来 I. INTRODUCTION The actual response slope of each ion-selective electrode varies within a certain allowable range. Therefore, the electrode is usually measured before the actual response to the slope of the determination. In order to save this step, we can use the second standard addition method. The results of the second standard addition method can be solved iteratively by computer, but it is hard to popularize and apply in many laboratory conditions at present. Figure algorithm can also be used to solve, such as Zhao Zhaofan calculations made. However, the map algorithm to check two diagrams, more complicated procedures. Chen Hongyuan et al. Proposed a calculation graph with a series of curve families (ΔE_1) to be used