Tufuling
[properties]this product is slightly cylindrical,slightly flat or irregular,with nodular uplift and short branches,with a length of 5~22cm and a diameter of 2~5cm.The surface is yellowish brown or grayish brown,uneven,with hard fibrous root residues,round bud marks on the top of branches,irregular cracks on some skin,and residual scale leaves.It is hard.The slices are oblong or irregular,1~5mm thick,and the edges are irregular;The section is almost white to light reddish brown,pink,dotted vascular bundles and most small bright spots can be seen;It is slightly tough,with dust flying when it is broken,and it feels sticky and slippery when it is wet with water.Slight gas,slightly sweet and astringent taste.
[identification](1)the powder of this product is light brown.There are many starch grains,single grain,spherical,polygonal or square,with a diameter of 8~48μm.Umbilical point crack shape,star shape,trigeminal shape or point shape,large particles can be seen with lamination;The compound granule is composed of 2~4 granules.Calcium oxalate needle crystal bundle exists in mucus cells or scattered,and the needle crystal length is 40~144μm.About 5 in diameterμm。The stone cells are oval,square or triangular,with a diameter of 25~128μm.The pores and grooves are fine and dense;There are dark brown stone cells,long strip,with a diameter of about 50μm.The wall is extremely thick on three sides and thin on one side.The fibers are bundled or scattered,with a diameter of 22~67μm。Vessels and tracheids with marginal pits are common,and most of the marginal pits extend laterally.(2)Take 1g of this product powder,add 20ml of methanol,ultrasonic treatment for 30 minutes,filter,and take the filtrate as the test solution.In addition,take the astilbin control sample and add methanol to make a solution containing 0.1mg per 1ml as the control solution.According to the test of thin layer chromatography(general rule 0502),absorb 10 of the above two solutionsμl.Point on the same silica gel G thin-layer plate respectively,use toluene ethyl acetate formic acid(13:32:9)as the developing agent,develop,take out,dry,spray aluminum chloride test solution,place it for 5 minutes,and check it under ultraviolet light(365nm).In the chromatogram of the test sample,fluorescent spots of the same color are displayed at the position corresponding to the chromatogram of the control sample.
[inspection]the moisture content shall not exceed 15.0%(the second method of general rule 0832).The total ash content shall not exceed 5.0%(general rule 2302)
[extract]according to the hot leaching method under the alcohol soluble extract determination method(general rule 2201),dilute ethanol shall be used as the solvent,which shall not be less than 15.0%.
[content determination]determine according to high performance liquid chromatography(general rule 0512).The chromatographic conditions and system suitability test take octadecyl silane bonded silica gel as filler;Methanol-0.1%glacial acetic acid solution(39∶61)was used as mobile phase;The detection wavelength was 291 nm.The number of theoretical plates shall not be less than 5000 according to the peak of astilbin.Preparation of reference solution:take an appropriate amount of astilbin reference,weigh it accurately,and add 60%methanol to make a solution containing 0.2mg per 1ml.Preparation of the test solution:take about 0.8g of the powder(passing the No.2 sieve)of the product,accurately weigh it,place it in a round bottom flask,accurately add 100ml of 60%methanol,weigh it,heat and reflux for 1 hour,cool it,weigh it again,make up the lost weight with 60%methanol,shake it well,filter it,and take the filtrate.The determination method accurately absorbs 10%of the control solution and 10%of the test solution respectivelyμl.Inject it into the liquid chromatograph for determination.This product is calculated as a dry product,and the content of astilbin(c21h22o11)shall not be less than 0.45%.Decoction pieces
[processing]for those not sliced,soak,wash,moisten,slice and dry.
[properties]the product is oblong or irregular flakes with irregular edges.The section is yellowish white or reddish brown,powdery,with punctate vascular bundles and most small bright spots;It feels sticky and slippery after wetting with water.Slight gas,slightly sweet and astringent taste.
[extract]the same as medicinal materials,not less than 10.0%.[identification][inspection][content determination]are the same as those of medicinal materials.[nature,taste and meridian returning]sweet,light and flat.Return to the liver and stomach channels.
[functions and indications]detoxification,dehumidification,Tongli joint.For limb contracture and muscle pain caused by syphilis and mercury poisoning;Dampness,heat,drenching and turbid,under the belt,carbuncle,scrofula and scabies.[usage and dosage]15~60g.
[storage]place in a ventilated and dry place.
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Factory address: Liulin Town, Chenggu County, Hanzhong City, Shaanxi Province
Email:Teegooherb@hotmail.com
Sales Center Address: Floor 16, Jinshi Bailang Building, No. 39 taibai South Road, Yanta District, Xi 'an, Shaanxi province
Zip code :710065
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