论文部分内容阅读
采用正交函数、导数光谱法分别测定复方土荆皮酊中苯甲醚、水杨酸、土荆皮含量。苯甲酸用正交函数法在２２０～２３０ｎｍ区间，△λ＝２ｎｍ，６个波长，支测定，计算Ｐ＿２值，以含量对Ｐ＿２值作线性回归，ｒ＝０．９９８６；水杨酸在２６５～３３０ｎｍ区间作一阶导数光语，△λ＝１ｎｍ，在３０９ｎｍ处以含量对谷极值作线性回归，ｒ＝０．９９９５；土荆皮在３６０ｎｍ处测定，其浓度正比于吸收值，作线性回归，ｒ＝０．９９８２。３个组分回收率±ＲＳＤ依次为９９．２５％±１．１２％，９９．３９％±０．４４％，９９．２５％±１．００％。
The content of anisole, salicylic acid and soil bark in the compound Jingjingpi tincture were determined by orthogonal function and derivative spectroscopy respectively. Benzoic acid was determined by orthogonal function method in the range of 220-230 nm with △ λ = 2 nm and 6 wavelengths. The P 2 value was calculated and the content of P 2 was linearly adjusted with r = 0.9986. 330nm range for the first derivative of the optical language, △ λ = 1nm, at 309nm at the content of the valley value for linear regression, r = 0.9995; soil Jing skin at 360nm at a concentration proportional to the absorption value for linear regression , R = 0.9982 The recoveries of the three components ± RSD were 99.25% ± 1.12%, 99.39% ± 0.44% and 99.25% ± 1.00%, respectively.