论文部分内容阅读
在PH8—11氨性溶液中三价铁与磺基水杨酸生成稳定的黄色络合物,其组成为[Fe(SaL)_3]~(3-),最大吸收波长420nm,颜色强度与铁含量成正比,且吸光度重现性比较好。据此考虑到能否找到一个具有代表性的标准曲线代替每次分析样品必作的标准曲线呢?为此,本人试用线性回归原理,将多次测铁的标准曲线进行回归处理,找出了一个代表性的线性方程,用该方程代替标准曲线进行计算,所得结果与原方法一致。一、建立直线回归方程现将近几年来,我室不同人、不同时间里分别在420nm、460nm用2厘米比色皿测
In PH8-11 ammoniacal solution, trivalent iron and sulfosalicylic acid generate stable yellow complex with the composition of [Fe (SaL) 3] ~ (3-), the maximum absorption wavelength of 420nm, the color intensity of iron Content is proportional to, and absorbance reproducibility is better. Therefore taking into account whether it can find a representative of the standard curve instead of the standard curve for each sample must be analyzed? To this end, I try the principle of linear regression, multiple regression analysis of the iron standard curve to find out A representative linear equation is calculated using this equation instead of the standard curve, and the result is consistent with the original one. First, the establishment of linear regression equation Now in recent years, my room different people, at different times in 420nm, 460nm with 2 cm cuvette measured