HPLC method for measuring contents of 6 endogenous hormones in salvia miltiorrhiza bunge at the same time
A technology of endogenous hormones and content, applied in the field of chemical analysis, can solve problems such as flowering failure, pests and diseases, affecting the development of Sichuan salvia miltiorrhiza, and achieve the effect of high sample recovery and excellent linear relationship
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[0046] Embodiment 1 The inventive method measures the endogenous hormone content of Salvia miltiorrhiza seed
[0047] 1. Preparation of the test solution
[0048] Grind 1g of frozen sample with liquid nitrogen (frozen sample is: fresh flowering buds collected at full flowering stage and stored in -80°C refrigerator), 0.2g of pvpp, 30mL of 80% pre-cooled methanol for 24 hours at 4°C to obtain the extract. The residue was grinded with 10 mL of 80% methanol and extracted twice, each time for 30 min. All the extracts were combined and centrifuged at -4°C at 10,000 r / min for 15 min. The supernatant was evaporated and concentrated under reduced pressure at 35°C to 40°C until there was no residual methanol (about 10ml remained).
[0049] Rinse the distillation flask twice with 10ml pH=8.0 phosphate buffer solution and 10ml petroleum ether in turn, decolorize and extract with equal volume of petroleum ether for 3 times, each time for 15min, and discard the ether phase. Adjust the pH...
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