HPLC测定维生素B6片含量测定方法的探讨

目的：建立一种用HPLC测定维生素B6片含量的方法。方法采用HPLC法，选用色谱Aglient C18；流动相为0.04％庚烷磺酸钠溶液-甲醇（85∶25）（用冰醋酸调pH值至3.5）；检测波长：291nm；流速1mL· min －1。结果维生素B6片在（2.613～60.23μg· mL －1浓度范围内）线性关系良好（r＝0.9997）。精确度为0.16％。平均回收率为99.3％。结论此方法可以避免药物中杂质的干扰，分离效果好，准确率高，专属性强，适合维生素B6片的含量测定。

Determination of vitamin B6 Tablets by HPLC

ABSTRACT:OBJECTIVE To establish an HPLC determination for vitamin B6 tablets.METHODS Using HPLC method, choose chromatographic Aglient C18;Mobile phase was 0.04% heptane sodium sulfonate solution-methanol (85∶25) ( pH 3.5 adjusted by glacial acetic acid);detection wavelength:291nm;flow rate:1mL· min-1.RESULTS Vitamin B6 tablets had a good linear relationship in concentration (2.613 to 60.23μg· mL-1)(r=0.9997 ).Accuracy was 0.16%.The average recovery was 99.3%.CONCLUSION This method can avoid the in-terference of impurities in drugs,separation effect is good,high accuracy,strong specificity,is suitable for the content determination of vitamin B6 tablets.