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出 处:《中国药业》2012年第6期39-40,共2页China Pharmaceuticals
摘 要:目的建立测定烟酸占替诺片含量及有关物质的高效液相色谱法。方法采用钻石C18柱(150 mm×4.6 mm,5μm),以0.1%三乙胺溶液(用冰醋酸调节pH至3.3)-甲醇(95∶5)为流动相,流速为1.0 mL/min,检测波长为267 nm,柱温为35℃。结果烟酸占替诺质量浓度在9.94~994 mg/L范围内与峰面积呈良好线性关系,线性回归方程为Y=32 024.5 X-71 046.0,r=1.000,方法回收率为99.4%(n=9),RSD为0.2%。茶碱质量浓度在0.33~33 mg/L范围内与峰面积呈良好线性关系,线性回归方程为Y=59 069.9 X-2 595.2,r=1.000,方法回收率为99.0%(n=9),RSD为1.3%。结论所用方法简便准确,专属性强,可用于其产品的质量控制。Objective To establish a HPLC method for the determination of the content of Xanthinol Nicotinate Tablets and its related substances. Methods The adopted chromatorgraphic conditions were: the Cts (150 mm×4.6 mm, 5 μm) column, the mobile phase of 0. 1% triethylamine solution (pH 3.3 adjusted by glacial acetic acid)methanol(95 : 5) and the flow rate at 1.0 mL/min; the detect wavelength was at 267 nm and the column temperature was 35 ~C. Results Xanthinol nicotinate showed the good linearlty in the con- centration range of 9.94 - 994 rag/L, the linear equation was Y = 32 024.5 X - 71 046. 0( r = 1. 000). The recovery rate was 99.4% ( n = 9), RSD = 0.2%. Theophylline also showed the good linearity in the concentration range of 0.33 - 33 rag/L, the linear equation was Y = 59 069.9X-2 595. 2( r =1. 000) . The recovery rate was 99.0% (n=9), RSD=1.3%.Conclusion The method is simple with strong specificity and can be applied to the quality control of Xanthinol Nicotinate Tablets.
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