摘要
该文使用中性氧化铝Cleanert Alumina-N—SPE小柱(0.5g/6mL),洗脱剂为三氯甲烷-甲醇(7:3)5mL,代替氧化铝开放柱(100—200目,5g,内径1cm),依次以三氯甲烷、三氯甲烷-甲醇(7:3)各20mL进行洗脱对苦参药材供试液进行处理,该方法优化洗脱溶剂使用种类和数量,并优化了苦参药材中苦参碱和氧化苦参碱含量测定的色谱条件,将2010年版《中国药典》中流动相条件乙腈-无水乙醇-3%磷酸溶液(80:10:10)优化为乙腈.无水乙醇-3%磷酸溶液(84:6:10);简化了2010年版《中国药典》规定苦参药材供试液的前处理,缩短了样品处理时间,减少了洗脱溶剂,结果更为准确可靠,适合苦参药材中含量的测定,提高苦参药材中苦参生物碱含量测定的工作效率。
A Cleanert Alumina-N-SPE column (0. 5 g/6 mL) chromatograpy with 5 mL of chloroform-methanol (7: 3) as elu-ent,instead of aluminum oxide column (100-200 mesh, 5 g, 1 cm) chromatograpy eluted successively with chloroform and the chloro-form-methanol (7:3 ) (20 mL each), was applied to enrich matrine and oxymatrine in Sophora flavescens. Also, the optimization of the HPLC determination conditions with acetonitrile-ethanol absolute-3% phosphoric acid solution (84: 6: 10) as mobile phase, instead of acetonitrile-ethanol absolute -3% Phosphoric acid solution (80: 10: 10) recorded in Chinese Pharmacopoeia 2010 Edition, was more suitable for determination of matrine and oxymatrine in S. flavescens. This method has advantage of reducing sample handling time and solvent volume and increasing the accuracy and feasibility, which can simplify the procedure for determination of matrine and oxymatrine in S. flavescens.
出处
《中国中药杂志》
CAS
CSCD
北大核心
2013年第17期2844-2847,共4页
China Journal of Chinese Materia Medica
关键词
苦参
固相萃取柱
方法优化
Sophora flavescens
the solid-phase extraction column
method optimization