Quick detection method for quality control of radix curcumae medicinal material
A detection method and turmeric technology, applied in the field of near-infrared detection, can solve problems such as no related reports, achieve the effect of efficient quality control and ensure safety
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Embodiment 1
[0114] Embodiment 1, the content of curcumadione, curcumol and gemmacone of curcuma medicinal material determined by near-infrared spectrometry
[0115] (1) Medicinal material sample preparation: select 30 batches of turmeric medicinal materials, crush and sieve, and set aside
[0116] (2) Content determination:
[0117] Take 6.0g turmeric fine powder, weigh it accurately, put it in a stoppered Erlenmeyer flask, add 20ml methanol accurately, weigh it, heat it under reflux for 30 minutes, let it cool, weigh it accurately, add methanol to make up for the lost weight, shake Evenly, let it stand, take the supernatant and filter it with a 0.45um microporous membrane. Liquid chromatography conditions: C-18 column (4.6*150mm, 5um), acetonitrile: 0.1% phosphoric acid aqueous solution (55:45) isocratic elution. Column temperature: 35°C, flow rate 1.0ml / min, detector DAD, detection wavelength 214nm, injection volume 5ul.
[0118] Through the above method, the three quality control inde...
Embodiment 2
[0132] Embodiment 2, near-infrared spectrometry measures the moisture content of curcuma medicinal material
[0133] (1) Medicinal material sample preparation: 30 batches of turmeric medicinal materials were selected, crushed and sieved, and set aside.
[0134] (2) Moisture determination (toluene method):
[0135] Take 10g of the test product, weigh it accurately, put it in a round bottom flask, add about 200ml of toluene, and if necessary, add a few pieces of dry and clean unglazed ceramic chips or glass beads, connect the instrument, and add from the top of the condenser tube. Add toluene to fill the narrow section of the tube. Put the round-bottomed flask in an electric heating mantle or heat it slowly by other suitable methods. When the toluene starts to boil, adjust the temperature so that 2 drops per second are distilled. After the water is completely distilled off, that is, when the water volume in the scale part of the measuring tube does not increase any more, first...
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