Determination method of multi-component content of Jade leaf golden flower
A kind of technology of jade leaf golden flower and determination method, which is applied in the direction of measuring device, material separation, analysis material, etc., can solve the problems such as content determination that have not yet been seen, and achieve the effects of good reproducibility, quality control and high precision
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[0022] Embodiment, content is as follows:
[0023] (1) Chromatographic conditions: Octadecylsilane-bonded silica gel was used as filler; acetonitrile was used as mobile phase A, 0.1% phosphoric acid was used as mobile phase B, and gradient elution was carried out according to Table 1; the injection volume was 10 μL, and the column The temperature is 35°C, the flow rate is 1.0 mL / min, and the detection wavelength is 254nm;
[0024] Table 1 Gradient elution table of Yuyejinhua
[0025]
[0026] (2) Sample extraction: take about 0.5 g of the powder of this product (passed through a No. 4 sieve), accurately weigh it, put it in a stoppered Erlenmeyer flask, accurately add 20 mL of 50% methanol, weigh it, and perform ultrasonic treatment (power 320 W , frequency 40 kHz) for 30 min, take it out, let it cool, weigh again, make up the lost weight with 50% methanol, shake well, filter, take the filtrate, and get it.
[0027] (3) Preparation of 9 reference substance stock solutions:...
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