Method for determining contents of chlorogenic acid, luteolin and apigenin in longleaf campanumoea root
A technology of luteolin and determination method, which can be applied to measurement devices, instruments, scientific instruments, etc., can solve the problems of unfavorable medicinal materials and the quality of their formulations, limit the development and utilization of spider fruit, and cannot guarantee the safety and effectiveness of clinical medication, etc. question
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[0083] A method for determining the content of chlorogenic acid, luteolin and apigenin in spider fruit medicinal materials:
[0084] Chromatographic conditions: Pntulips BP-C 18 Column (4.6mm×250mm, 2.5μm); mobile phase: mobile phase A is acetonitrile, mobile phase B is methanol, mobile phase C is 0.1% phosphoric acid aqueous solution, gradient elution; detection wavelength: 340nm; column temperature: 25°C; Flow rate: 1.0mL·min -1 ;Injection volume: 10μL; Gradient elution program: 0~5min, 2%~12%A, 3%~8%B, 95%~80%C; 5~15min, 12%~6% A, 8%~14% B, 80%~80%C; 15~20min, 6%~16%A, 14%~10%B, 80%~74%C; 20~25min, 16%~22% A, 10%~8% B, 74%~70%C; 25~35min, 22%~34%A, 8%~16%B, 70%~50%C; 35~40min, 34%~0% A, 16%~100%B, 50%~0%C; 40~45min, 0%A, 100%B, 0%C.
[0085] Preparation of chlorogenic acid reference substance stock solution: take chlorogenic acid reference substance, add 50% methanol to dissolve and make a solution with a mass concentration of 1.405 mg / mL;
[0086] Preparation of luteo...
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