Take this tasting 10g, bruise, add anhydrous alcohol 30ml, supersonic processing 40 minutes, filtration, filtrate adds 50% oxyhydrogen to change potassium solution 1ml, heat circumfluence 15 minutes, buy puts the refrigeration in bath on the ice 5 minutes, in funnel of displace cent fluid, the 20ml that use water divides second catharsis container, lotion merges into in the funnel that divide fluid, with oil aether (60 ℃ of 30 ～ ) brace up shake extract 3 times, every time 10ml, layer of amalgamative oil aether, the brandish on bath of 45 ℃ water does place, residual add liquefy of 1ml of ester of acetic acid second, as taste solution for trying. Take additionally malt contrast medicinal material 10g, with solution of legal contrast medicinal material. Take way of layer color atlas (appendix Ⅵ B) experiment, absorb two kinds of afore-mentioned solution L of each 10 μ , nod respectively at same with carboxyl sodium is methylic cellulose the silica gel G of bind agent on layer board, with benzene – chloroform (1:1) to develop an agent, spread out, take out, air, gush in order to contain the 50% alcohol solution of 15% nitric acid, heat in 100 ℃ to clarity of stain colour developing, buy ultraviolet light the lamp (365nm) next postmortem. In tasting color atlas for trying, in with contrast medicinal material color atlas is corresponding locally, show the fluorescent spot of same color.
Character is differentiated
Needle of two end narrow shows caryopsis slightly shuttle form, grow 8-15mm, diametical 2.5-1.5mm. The surface is flaxen, rear and perfectly round, the Fu outside be is surrounded, provide 5, tip is long fragrant already broke fall; N is inside Fu is surrounded, have a vertical channel. After Fu of eliminate inside and outside, base ministry radicle section chief gives plumule and fibril, plumule is long wrap around needle form, state line form, huang Bai is lubricious, long aboutA pulls love Shanghai to be the same as a city