Qualiy Standard Improvement of Sangren Qingfei Oral Liquid TLC Identification
To improve the quality of standard of Sangren Qingfei oral liquid,this study improved the TLC identification method of Liquorice.Liquritn as the reference,the testing solution and the control solution were placed on the same 1％solution hydroxide efficient silica gel G plate,ethyl acetate/formic acid/glacial acetic acid and water(15∶1∶1∶2)as the developing solvent,vitriolic acid ethyl alcohol(10％)as color developing reagent.The results showed the 1％solution hydroxide efficient silica gel G plate had the best development effect.The established identification was exclusive,the negative control had no a interference,and could be used for the TLC identification of Liquorice.
Sangren Qingfei oral liquidTLCliquorice1％solution hydroxide efficient silica gel G plate
NETL
NSTL
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