Multi-component content determination method of mussaenda hirsutula
A jade leaf golden flower and determination method technology, which is applied in the direction of measuring devices, material separation, and analysis of materials, can solve the problems of high cost and long time consumption, and achieve the effects of high recovery rate, good reproducibility, 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 328 nm.
[0024] Table 1 Gradient elution table of Jade leaf golden flower
[0025]
[0026] (2) Extract the sample: take about 0.5 g of the sample powder (passed through a No. 4 sieve), accurately weigh it, put it in a stoppered Erlenmeyer flask, add 20 mL of 50% methanol accurately, weigh it, and perform ultrasonic treatment (power 320 W, Frequency 40 kHz) for 30 min, take it out, let it cool, weigh it again, make up the lost weight with 50% methanol, shake well, filter, take the filtrate, and get it.
[0027] (3) Preparation of 6 reference substance stock so...
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