End point judgment method for percolation process of caulis sinomenii
A technology of percolation and rhizome, which is applied in the field of process analysis of traditional Chinese medicine production, can solve problems such as judging the end point of unrefined rhizome, achieve the effect of improving quality control level and saving manpower and material costs
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Embodiment 1
[0034] 1. Collection of spectral information: Weigh 100g of Caulis chinensis medicinal material, soak it with 0.3mol / mL hydrochloric acid solution for 12h and start percolation, control the speed of percolation liquid by peristaltic pump to be 4ml / min, control the liquid addition (percolation The solvent is 0.3mol / L hydrochloric acid solution) and the speed is 4mL / min. The percolation process lasts for about 8-12 hours, and a total of 5 percolation experiments are carried out. The parameters of the spectral scanning are the integration time 1500ms, the average value is taken after 20 scans of each spectrum, and the spectral polling time is 60s.
[0035] 2. Sample collection: At the beginning of percolation, the concentration of sinomenine hydrochloride is relatively high. At this time, the maximum absorbance of the ultraviolet spectrum is about 1.0, and it remains at a high level within 3 hours, so it is carried out 1 hour after the percolation starts. Sampling, once every 20 ...
Embodiment 2
[0049] 1. Collection of spectral information: Weigh 100g of Caulis chinensis medicinal material, soak it with 0.3mol / mL hydrochloric acid solution for 12h and start percolation, control the speed of percolation liquid by peristaltic pump to be 4ml / min, control the liquid addition (percolation The solvent is 0.3mol / L hydrochloric acid solution) and the speed is 4mL / min. The percolation process lasts for about 8-12 hours, and a total of 5 percolation experiments are carried out. The parameters of spectral scanning are integration time 1500ms, the average value is taken after scanning each spectrum 20 times, and the spectral polling time is 60s;
[0050] 2. Collection of samples: at the beginning of percolation, take samples 1 hour after the start of percolation, and take samples every 20 minutes; After 6 hours, sample every 20 minutes;
[0051] 3. Determination of sinomenine hydrochloride content in the sample: adopt HPLC-UV method to measure the concentration of sinomenine hyd...
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