Content measurement method for Chinese patent medicine prepared from sweet wormwood, honeysuckle and gardenia jasminoides fruit
A determination method and technology of honeysuckle, which can be used in pharmaceutical formulations, antipyretics, drug combinations, etc., can solve problems such as insufficient detection of component content.
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Embodiment 1
[0137] (1) The chromatographic conditions are: Phenomenex C 18 Chromatographic column (4.6 × 250mm, 5 μm); mobile phase A: methanol; mobile phase B: 0.1% phosphoric acid aqueous solution, the system gradient elution procedure is as follows:
[0138]
[0139] (2) Measurement wavelength:
[0140] ① Chlorogenic acid, cryptochlorogenic acid, caffeic acid, geniposide, isochlorogenic acid B, isochlorogenic acid A, and isochlorogenic acid C are determined at a wavelength of 324nm.
[0141] ② The determination wavelength of geniposide and secoxyloganin content is 237nm;
[0142] (3) Preparation of reference solution: accurately weigh neochlorogenic acid, chlorogenic acid, cryptochlorogenic acid, geniposide, caffeic acid, isochlorogenic acid B, isochlorogenic acid A, isochlorogenic acid C, An appropriate amount of secoxyloganin reference substance, accurately weighed, dissolved in 50% methanol and diluted to make each 1ml contains 0.2831mg of neochlorogenic acid, 0.7528mg of chlor...
Embodiment 2
[0152] (1) The chromatographic condition is: C 18 Chromatographic column; mobile phase A: methanol; mobile phase B: 0.1% phosphoric acid aqueous solution, the system gradient elution procedure is as follows:
[0153]
[0154] (2) Measurement wavelength:
[0155] ① Chlorogenic acid, cryptochlorogenic acid, caffeic acid, geniposide, isochlorogenic acid B, isochlorogenic acid A, and isochlorogenic acid C are measured at a wavelength of 320nm.
[0156] ② The determination wavelength of geniposide and secoxyloganin content is 230nm;
[0157] (3) Preparation of reference solution: accurately weigh neochlorogenic acid, chlorogenic acid, cryptochlorogenic acid, geniposide, caffeic acid, isochlorogenic acid B, isochlorogenic acid A, isochlorogenic acid C, An appropriate amount of secoxyloganin reference substance, accurately weighed, dissolved in 50% methanol and diluted to make each 1ml contains 0.2752mg of neochlorogenic acid, 0.8264mg of chlorogenic acid, 0.4281mg of cryptochlo...
Embodiment 3
[0167] (1) The chromatographic condition is: C 18 Chromatographic column; mobile phase A: methanol; mobile phase B: 0.1% phosphoric acid aqueous solution, the system gradient elution procedure is as follows:
[0168]
[0169] (2) Measurement wavelength:
[0170] ① Chlorogenic acid, cryptochlorogenic acid, caffeic acid, geniposide, isochlorogenic acid B, isochlorogenic acid A, and isochlorogenic acid C are measured at a wavelength of 330nm.
[0171] ② The wavelength for measuring the content of geniposide and secoxyloganin is 240nm;
[0172](3) Preparation of reference solution: accurately weigh neochlorogenic acid, chlorogenic acid, cryptochlorogenic acid, geniposide, caffeic acid, isochlorogenic acid B, isochlorogenic acid A, isochlorogenic acid C, An appropriate amount of secoxyloganin reference substance, accurately weighed, dissolved in 50% methanol and diluted to make each 1ml contains 0.2564mg of neochlorogenic acid, 0.8254mg of chlorogenic acid, 0.4465mg of cryptoc...
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