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对格氏作图法的研究已经有很长的历史,早在1952年,格兰(Gran)首先提出作为电位滴定的终点确定,1969年 Liberti 把它应用到离子选择电极的连续标准加入法中。目前国内普遍使用的是具有10%体积校正的格氏作图纸。赵藻藩等曾提出利用△E 与斜率 S 的关系作共线图,以消除斜率不标准(即一价不为58mV,二价不为29mV)所引起的误差,不必做空白试验,从而使操作步骤简化。王基镕用计算机编写绘制格氏图坐标(毫伏电位值和体积值的二维坐标)的程序,并在大型绘图仪上绘出,可取代常规的707
There has been a long history of research into the Gerstmann method. As early as 1952, Gran first proposed endpoint determination as potential titration. In 1969, Liberti applied it to the continuous standard addition method of ion-selective electrodes . Currently used widely in the country with 10% volume correction of the Grimes drawing. Zhao Zhaofan et al. Proposed the use of the relationship between ΔE and slope S as a collinear chart to eliminate the error caused by the non-standard slope (that is, the monovalent value is not 58mV and the divalent value is not 29mV). Therefore, it is not necessary to make a blank test so that the operation steps simplify. Wang Jirong computer program to draw the coordinates of the milligram (millivolt potential value and volume value of the two-dimensional coordinates) program, and plotted on a large plotter, can replace the conventional 707