The comparison method of Determination in NitrendipineTablet by HPLC and the Ultraviolet Spectrophotometric
Objce tive To establish method and comparision for HPLC and UV Determination of nitrendipine Tablet .Methods Used high-performance liquid chro-matography,Used as C18(4.6 ×150nm 5um)chromatographic column,Methanol-water(volume ratio of 65:35)as mobile phase.Flow rate:1.0 ml /min,Detection at 237 nm,sample volume for the 20 ul;by ultraviolet spectrophotometer,for the wavelength of 237 nm.Results HPLC:Nitrendipine Tablet has perfect linear correlation in the range of 0.02000-0.1000mg/ml,r=0.9999,The average recovery rate is 100.1%,and RSD=0.13%;uv:Nitrendipine Tablet has linear correlation in the range of 2.00-10.00ug/ml,r=0.9993,The average recovery rate is 102.5%,and RSD=1.71%;Conclusion The method is simple,convenient,and accurate Nitrendipine Tablet in the concentration of a good linear relationship,with an average recovery rate of100%.It can be used to control the content of Nitrendipine Tablet.