Bulk drug phillyrin quality detection method
A quality detection method, the technology of forsythin, applied in the direction of measuring devices, material separation, analysis of materials, etc., can solve the problems of weak innovation and market competitiveness, and difficulty in the circulation of the world's pharmaceutical market
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Embodiment 1
[0170] 1. Preparation of raw material drug forsythin
[0171] Add 10 kg of 95% (m / m) ethanol to 1 kg of dried forsythia leaves, heat and reflux to extract twice, each time for 2 hours, filter, and concentrate the filtrate under reduced pressure to 1 / 2 of the original volume, place it at 25°C for 1 hour, and precipitate Precipitate; dissolve with methanol, recrystallize, and precipitate; repeat the above method for recrystallization with methanol to obtain the raw material drug forsythin in the state of amorphous powder.
[0172] The raw material drug forsythin is light yellow to yellow powder with certain hygroscopicity; it is odorless and tastes slightly bitter.
Embodiment 2
[0174] Add 10 kg of methanol to 1 kg of dried forsythia fruit, heat and reflux for extraction three times, each time for 4 hours, filter, and concentrate the filtrate under reduced pressure to 1 / 10 of the original volume, and place it at 20°C for 48 hours to precipitate out; then dissolve with ethanol, Carry out recrystallization and precipitate out; repeat the above method and recrystallize with ethanol to obtain the raw material drug forsythin in the state of amorphous powder.
[0175] The raw material drug forsythin is light yellow to yellow powder with certain hygroscopicity; it is odorless and tastes slightly bitter.
Embodiment 3
[0177] Add 10 kg of 70% (m / m) methanol to 1 kg of dried forsythia leaves, heat and reflux for extraction 3 times, 3 hours each time, filter, concentrate the filtrate under reduced pressure to 1 / 3 of the original volume, and place it at room temperature for 2 hours to precipitate out Dissolve it with 90% methanol, carry out recrystallization, and precipitate out; repeat the above method and recrystallize with methanol to obtain the raw material drug forsythin in the state of amorphous powder.
[0178] The raw material drug forsythin is light yellow to yellow powder with certain hygroscopicity; it is odorless and tastes slightly bitter.
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