摘要
在乙醇介质中,一水合磷酸西他列汀与红紫素在室温中放置15～30 min,二者可以形成1∶1型荷移络合物,其λmax为520nm,表观摩尔吸光系数为1.93×10^3 L/（mol·cm）,线性范围为0.031～0.209g/L,线性回归方程为A=3.104 5C＋0.144 2,相关系数R为0.999 1,相对标准偏差为1.32%（n=6）。实验结果用于捷诺维片含量的测定,结果满意。
Sitagliptin phosphate monohydrate can react with urorrhodin to form 1∶1complex after being placed in room temperature for 15～30min,which gives a maximum absorption peak at 520 nm.The molar absorptivity of the complex was 1.93×10^3 L/（mol·cm）and the linear range was 0.031～0.209g/L.The linear equation was A =3.104 5 C＋0.144 2 R=0.999 1,and correlation coefficient（RSD）was1.32%（n=6）.Good results were obtained,when it was applied to the determination of Januvia tablets.
出处
《化学世界》
CAS
CSCD
2016年第4期193-195,共3页
Chemical World
关键词
一水合磷酸西他列汀
荷移反应
分光光度法
Sitagliptin phosphate monohydrate
charge transfer reaction
spectrophotometry
