To determine the content and its related substances of Rosiglitazone Sodium tablets by HPLC the Zorbax SB-C18 column(4.6 mm×250 mm, 5 μm)was used, 0.1 mol·L-1 sodium acetate solution (adjusted to pH 5.5 with acetate): methanol (30∶70) as the mobile phase, at a flow rate of 1 mL·min-1, at detection wavelength 245 nm.
Methods A 12-week randomized,rosiglitazone sodium 4 mg/d added to 47 type 2 diabetes patients with poor glycemic control by sulfonylureas and metformin.
To determine the dissolution of Rosiglitazone Sodium Tablet, a UV-spectrophotometric method was used to study the dissolution with the detection wavelength at 234 nm.
Results A significant reduction was observed after 12 weeks by treatment with rosiglitazone sodium,in fasting plasma glucose(P<0.01),postprandial plasma glucose(P<0.01),plasma insulin(P<0.05),HbAlC(P<0.05) and HOMA-IR(P<0.05).
The linearity of peak area was good when the injected quantity of Rosiglitazone sodium was in the range of (0.4~4.8) μg(r=0.999 9, n=7). The recovery of this method was 100.1%, the intra-day RSD and inter-day RSD were 0.56% and 0.63%(n=9) respectively.
Objective: 2 - Hydroxypropyl - β- cyclodextrin ( HP -β- CD) was used as chiral separation reagent. By the optimization of the concentration of the HP - β- CD and the pH of buffer, the two kinds of enantiomers of rosiglitazone sodium were separated. At the same time, the effects of temperature on the separation have been studied. Methods: The buffer solution used in this method was 30 mmol· L-1 phosphate solution (containing 4% HP -bbbb - CD, pH 6. 5) , the detective wavelength was 248 nm. Result...
HPCE methods for separating and determining the rosiglitazone sodium enantiomers were estabˉlished.The effects of buffer concentration,pH,and the type and concentrations of CDs in the chiral separaˉtion of rosiglitazone sodium were investigated.The buffer solution used in aqueous capillary electrophoresis(ACE)was150mmol/L Tris-H 3 PO 4 solution,pH=2.0,containing1mmol/Lβ-CD or DM-β-CD,and10%(φ)methanol.The voltage applied was25kV,and the detective wavelength was215nm.In addiˉtion,a si...
To determine the dissolution of Rosiglitazone Sodium Tablet, a UV-spectrophotometric method was used to study the dissolution with the detection wavelength at 234 nm.The rotative velocity of 50r·min-1 and the 500 mL of water. The linear range of the standard curve was(4~20) μg·mL-1, r=0.999 9(n=7). The average recovery of this method was 99.95%(n=9), the within-day RSD and between-day RSD were 0.49% and 0.75% respectively. The drug dissolution rate for 20 min was over 95%. This method is conveni...