崔俊凤,于志华,刘晓鹏(滨州市食品药品检验检测中心,山东滨州 256600)
HPLC法同时测定白蒲黄片中5种成分的含量
崔俊凤*,于志华,刘晓鹏(滨州市食品药品检验检测中心,山东滨州 256600)
目的:建立同时测定白蒲黄片中白头翁皂苷B4、咖啡酸、黄芩苷、盐酸巴马汀和盐酸小檗碱含量的方法。方法:采用高效液相色谱法。色谱柱为Agela Technologies Venusil XBP C18(L),流动相为乙腈-0.05 mol/L磷酸二氢钾溶液(梯度洗脱),流速为0.8 mL/min,检测波长为203 nm(白头翁皂苷B4)和323 nm(咖啡酸、黄芩苷、盐酸巴马汀和盐酸小檗碱),柱温为30℃,进样量为10 μL。结果:白头翁皂苷B4、咖啡酸、黄芩苷、盐酸巴马汀和盐酸小檗碱检测进样量线性范围分别为0.081 41~8.141µg(r=0.999 8)、0.018 71~1.871µg(r=0.999 4)、0.037 33~3.733µg(r=0.999 2)、0.028 85~2.885µg(r=0.999 6)、0.027 58~2.758µg(r=0.999 7);定量限分别为0.009、0.006、0.008、0.011、0.013 ng,检测限分别为0.030、0.020、0.025、0.034、0.036 ng;精密度、稳定性、重复性试验的RSD<2.0%;加样回收率分别为97.39%~102.34%(RSD=1.81%,n=6)、96.77%~98.92%(RSD=0.85%,n=6)、97.38%~103.72%(RSD=2.46%,n=6)、96.73%~102.01%(RSD=2.22%,n=6)、96.47%~101.07%(RSD=1.61%,n=6)。结论:该方法操作简便、结果准确、重复性好,可用于白蒲黄片中白头翁皂苷B4、咖啡酸、黄芩苷、盐酸巴马汀和盐酸小檗碱含量的同时测定。
高效液相色谱法;白蒲黄片;白头翁皂苷B4;咖啡酸;黄芩苷;盐酸巴马汀;盐酸小檗碱;含量
ABSTRACTOBJECTIVE:To establish a method for simultaneous determination of pulchinenoside B4,caffeic acid,baicalin,palmatine hydrochloride and berberine hydrochloride in Baipuhuang tablets.METHODS:HPLC method was adopted.The determination of Agela Technologies Venusil XBP C18(L)with mobile phase consisted of acetonitrile-0.05 mol/L monopotassium phosphate(gradient elution)at the flow rate of 0.8 mL/min.The detection wavelengths were set at 203 nm(pulchinenoside B4)and 323 nm(caffeic acid,baicalin,palmatine hydrochloride,berberine hydrochloride).The column temperature was set at 30℃,and the sample size was 10 μL.RESULTS:The linear ranges were 0.081 41-8.141µg for pulchinenoside B4(r=0.999 8),0.018 71-1.871µg for caffeic acid(r=0.999 4),0.037 33-3.733µg for baicalin(r=0.999 2),0.028 85-2.885µg for palmatine hydrochloride(r=0.999 6)and 0.027 58-2.758µg for berberine hydrochloride(r=0.999 7).The limits of quantitation were 0.009,0.006,0.008,0.011,0.013 ng,respectively.The limits of detection were 0.030,0.020,0.025,0.034,0.036 ng,respectively.RSDs of precision,stability and reproducibility tests were all lower than 2.0%.The average recoveries were 97.39%-102.34%(RSD=1.81%,n=6),96.77%-98.92%(RSD=0.85%,n=6),97.38%-103.72%(RSD=2.46%,n=6),96.73%-102.01%(RSD=2.22%,n=6)and 96.47%-101.07%(RSD=1.61%,n=6),respectively.CONCLUSIONS:The method is simple,accurate and reproducibility,and can be used for simultaneous determination of pulchinenoside B4,caffeic acid,baicalin,palmatine hydrochloride and berberine hydrochloride in Baipuhuang tablet.
KEYWORDSHPLC;Baipuhuang tablets;Pulchinenoside B4;Caffeic acid;Baicalin;Palmatine hydrochlorid;Berberine hydrochloride;Content
白蒲黄片主要由白头翁、蒲公英、黄芩和黄柏4味中药材组成,具有清热燥湿、解毒凉血的功效,主要用于大肠湿热、热毒壅盛所致的痢疾、泄泻,症见里急后重、便下脓血;肠炎、痢疾见上述证候者[1]。白蒲黄片收载于2015年版《中国药典》(一部)[2],只规定了黄芩苷的含量测定项,不能全面地控制该制剂的质量,因此笔者采用高效液相色谱法(HPLC)建立了测定该制剂中4种中药材的主要成分白头翁皂苷B4、咖啡酸、黄芩苷、盐酸巴马汀和盐酸小檗碱含量的方法,以期为完善该制剂的质量标准提供参考。……