摘要:
目的:建立高效液相色谱法同时测定夏天无中紫堇米定碱、原阿片碱、黄连碱、四氢药根碱、掌叶防己碱、小檗碱、血根碱、盐酸罂粟碱、延胡索乙素、比枯枯灵碱、紫堇碱这1 1种有效成分的含量.方法:采用Shim-pack VP-ODS色谱柱(250 mm×4.6 mm,4.6 μm),乙腈-0.2%醋酸溶液(三乙胺调pH 5.0)梯度洗脱,流速1.0 mL/min,检测波长280 nm,柱温25℃.结果:11种生物碱的线性范围分别为4.175 ~ 83.5 μg/mL(r1 =0.9994),26.625 ~532.5 μg/mL(r2 =0.9998),5.35 ~107 μg/mL(r3 =0.9994),3.75 ~75 μg/mL(r4 =0.9997),13.575 ~271.5 μg/mL(r5=0.9994),1.625 ~ 32.5 μg/mL(r6=0.9996),1.75 ~ 35 μg/mL(r7=0.9996),5.7~114 μg/mL(rs =0.9999),16.625~332.5 μg/mL(r9=0.9996),18.3~366 μg/mL(r1o=0.9998),8.35~167 μg/mL(r11=0.9997).平均加样回收率分别为97.17%(RSD=0.264%),98.15%(RSD=3.895%),99.11%(RSD=2.196%),98.08%(RSD=3.675%),100.53%(RSD=1.825%),99.66%(RSD=1.047%),93.66%(RSD=1.726%),98.23%(RSD=1.754%),100.44% (RSD=1.531%),100.45%(RSD=1.148%),98.67%(RSD=1.235%).结论:该方法准确、专属性强、灵敏度高,可用于夏天无生物碱成分的定量分析.