Method for rapidly measuring content of four spermidine ingredients in carthamus tinctorius simultaneously
A rapid determination of spermidine technology, applied in the direction of measuring devices, material separation, analysis of materials, etc., to achieve the effect of reliable and easy operation of the method
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Embodiment 1
[0019] Liquid chromatography analysis conditions: the analytical column is AgilentC 18 Chromatographic column (250mm×4.6mm, 5μm), the mobile phase is 47% methanol / water isocratic elution, the elution flow rate is 1.0ml / min, the column temperature is 30°C, the detection wavelength is 270nm, 280nm, 290nm, 300nm multi-wavelength For detection, the injection volume was 10 μl.
[0020] Preparation of reference solution:
[0021] Preparation of mixed reference substance stock solution: Accurately weigh 4.16 mg of the standard substance of spermidine compound 1, 5.12 mg of the standard substance of spermidine compound 2, 5.40 mg of the standard substance of spermidine compound 3, and 5.40 mg of the standard substance of spermidine compound 3. 4 Standard substance 10.04 mg, in a 100ml brown volumetric flask, was adjusted to the mark with methanol to obtain a mixed reference substance solution stock solution (each standard substance was prepared by our laboratory).
[0022] Preparati...
Embodiment 2
[0059] 1) Weigh 1.0000g of safflower powder (through a 60-mesh sieve), place it in a 100ml brown conical flask with a stopper, add 15ml of methanol, weigh it, and perform ultrasonic treatment (ultrasonic frequency 40KHz, power ratio 91%, ultrasonic temperature (25°C) for 10 minutes, let cool, weigh again, make up for the lost weight with methanol, shake well, and filter to obtain the safflower test solution, which is then tested after passing through a 0.45 μm microporous membrane;
[0060] 2) measure with Agilent liquid chromatograph, chromatographic condition: analytical column is AgilentC 18 Chromatographic column (250mm×4.6mm, 5μm), the mobile phase is 47% methanol / water isocratic elution, the elution flow rate is 1.0ml / min, the column temperature is 30°C, and the detection wavelength is 270nm, 280nm, 290nm, 300nm. The sample volume was 10 μl; the peak areas corresponding to the four spermidine components were obtained;
[0061] 3) Put the peak areas corresponding to the ...
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