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在离子选择电极的应用中,已知添加法的计算机解已有许多报导,其中曹履诚等绍介了多次已知添加的计算机解法。谭新民推导出多次添加法的新的函数关系式,由于该函数关系式是一超越方程,不能用普通的代数法求解,本文应用电子计算机解,在求解过程中,着重研究了牛顿迭代法的初值x_0的选择条件。本试验对象是以Ag离子选择电极测定铝合金中的银,采用连续多次添加技术。
In the application of ion-selective electrodes, computer solutions of known addition methods have been widely reported. Among them, Cao et al. Introduced several known computer solutions. Tan Xinmin deduced the new function relation of multiple addition method. Since the function relation is a transcendental equation, it can not be solved by ordinary algebraic method. In this paper, the application of electronic computer solution, in the process of solving, focuses on the Newton iterative method The initial value of x_0 selection conditions. The test object is the Ag ion selective electrode determination of silver in the aluminum alloy, using a continuous multiple addition techniques.