摘要
采用反相高效液相色谱法,测定红丝线中香豆素的含量。色谱柱为ZORBAX XDB—C18(4.6mm×150mm,5μm);流动相:V(甲醇):V(0.01mol/L磷酸二氢钠溶液(pH5.4))=45:55;流速:1mL/min;检测波长278nm。香豆素的线性范围为2.5~30mg/L(r=0.9998),回收率97.5%~101%。该法简便、准确,重复性好,适用于测定红丝线中香豆素的含量。
To establish a method for the determination of coumarin in Peristrophe baphica, RP-HPLC was conducted on a ZORBAX XDB-C18 (4.6 mm×150 mm,5μm)with MeOH-NaH2PO4 (0.01 mol/L,pH=5.4)=45 : 55,flow rate 1.0 mL/min,the detection wavelength was set at 278 nm. The linear range of coumarin was 2. 5~30 mg/L(r=0. 999 8). The recoveries were 97.5M~101%. The method is simple,and accurate with good reproducibility,it is suitable for determination of the content of coumarin in P. baphica.
出处
《广西植物》
CAS
CSCD
北大核心
2006年第4期451-452,455,共3页
Guihaia
基金
国家自然科学基金(30360117)
广西自然科学基金(0342002-2)
国家科技攻关计划课题(2005BA901A10)
("西部开发"重大项目)资助~~