CN100541195C - A kind of detection method of Chinese medicine preparation - Google Patents
A kind of detection method of Chinese medicine preparation Download PDFInfo
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- CN100541195C CN100541195C CNB2006100509835A CN200610050983A CN100541195C CN 100541195 C CN100541195 C CN 100541195C CN B2006100509835 A CNB2006100509835 A CN B2006100509835A CN 200610050983 A CN200610050983 A CN 200610050983A CN 100541195 C CN100541195 C CN 100541195C
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Abstract
The invention discloses a kind of method of quality control of Chinese medicine preparation, particularly a kind of method of quality control of compound corydalis tuber analgesic preparation.This method adopts thin-layered chromatography to differentiate, adopts gravimetric method to carry out assay.This method of quality control precision, sensitivity, stability are all good, guarantee " safety, the homogeneous, stable, effective, controlled " of product quality, can be used for the quality control of compound corydalis tuber analgesic preparations such as tablet, syrup, granule.
Description
Technical field:
The present invention relates to a kind of method of quality control of Chinese medicine preparation, particularly a kind of method of quality control of compound corydalis tuber analgesic preparation.
Background technology:
Compound corydalis tuber analgesic preparation is prepared from by corydalis tuber (vinegar system) 98g rhizoma cyperi (vinegar system) 98g Fructus meliae toosendan 98g paniculate swallowwort 98g, for dredging the gas analgesic drug product.Be used for stomachache due to emotional depression and the hyperactive liver-qi attacking the stomach, gastral cavilty distending pain, costalgia of chest, cramp.Existing compound corydalis tuber analgesic tablet launch,
Compound corydalis tuber analgesic preparation of the present invention is the kind that develops through reform on the basis of former formulation, and existing compound corydalis tuber analgesic preparation exists method of quality control to fall behind the uppity shortcoming of product quality.Its composition is not differentiated in the existing method of quality control, or its composition is carried out the content of assay.So existing method of quality control can not effectively be controlled the quality of compound corydalis tuber analgesic preparation, thereby will influence the production of product and ensure the quality of products.
For effectively controlling product quality, we have set up the new method of quality control of compound corydalis tuber analgesic preparation, and this method adopts thin-layered chromatography to differentiate, adopt gravimetric method to carry out assay.This method of quality control precision, sensitivity, stability are all good, guarantee " safety, the homogeneous, stable, effective, controlled " of product quality.
Summary of the invention:
The object of the invention is to provide the method for quality control of compound corydalis tuber analgesic preparation.
Compound corydalis tuber analgesic preparation prescription consists of:
[prescription]
Corydalis tuber (vinegar system) 98g rhizoma cyperi (vinegar system) 98g Fructus meliae toosendan 98g paniculate swallowwort 98g
[method for making] above four flavors, Fructus meliae toosendan, rhizoma cyperi boiling secondary, each 4 hours, collecting decoction leaves standstill filtration, filtrate low-temperature reduced-pressure concentrate drying, pulverize, other gets corydalis tuber, paniculate swallowwort is ground into fine powder and sieves, with above-mentioned dried cream powder, an amount of starch mixing, granulate, drying adds the 1.5g dolomol, mixing, encapsulated, make 1000, promptly.
The present invention be directed to compound analgesic capsule of corydalis tuber preparation and propose method of quality control, but also be not limited to compound analgesic capsule of corydalis tuber preparation, also can comprise other oral formulations of compound corydalis tuber analgesic such as tablet, syrup, granule.
Its prescription of other dosage forms of compound corydalis tuber analgesic that the present invention includes is identical with compound analgesic capsule of corydalis tuber preparation, and composition is by weight as proportioning, can increase or reduce according to corresponding proportion when producing, and be no more than 100% at most.
Large-scale production can be unit with the kilogram, or is unit with the ton.More than composition can be made into 1000 doses of pharmaceutical preparations, described 1000 doses of fingers, and the final drug preparation of making, as make 1000 of capsule preparations, and 1000 in tablet, granule 1000g, liquid preparation 1000ml etc.,
The preparation method of other dosage forms of compound corydalis tuber analgesic of the present invention can adopt following method:
By the Chinese medicine material of above-mentioned prescription is processed through extraction or other modes, making pharmaceutically active substance, subsequently, is raw material with this material, add the medicine acceptable carrier when needing, make capsule, tablet, syrup, granule according to the routine techniques of galenic pharmacy.Described active substance can obtain by the method that is selected from following mode, as: by pulverize, squeeze, calcine, grind, sieve, diacolation, extraction, water are carried, alcohol extracting, ester are carried, methods such as ketone is carried, chromatography obtain, these active substances can be the materials of medicinal extract form, can be that dry extract also can be a liquid extract, can also be the high-purity extract, make different concentration according to the different needs decision of preparation.
Other dosage forms of compound corydalis tuber analgesic of the present invention, when making preparation, can add the medicine acceptable carrier as required, these carriers can be any carriers that is fit to make preparation of the present invention, as: benzoic acid or sylvite, sweet mellow wine, sorbierite, sorbic acid or sylvite, xylitol, maltose, glucose, fructose, dextran, glycocoll, starch, sucrose, lactose, mannitol, Nepal's methyl esters, Nepal's ethyl ester, Nepal's propyl ester, Nepal's butyl ester, sodium pyrosulfite, sodium bisulfite, sodium thiosulfate, cysteine hydrochloride, mercaptoacetic acid, methionine, vitamin A, vitamin C, vitamin E, vitamin D, azone, the EDTA disodium, EDTA calcium sodium, the alkali-metal carbonate of monovalence, acetate, phosphate or its aqueous solution, hydrochloric acid, acetic acid, sulfuric acid, phosphoric acid, amino acid, sodium chloride, potassium chloride, sodium lactate, silicon derivative, cellulose and derivant thereof, alginates, gelatin, polyvinylpyrrolidone, glycerine, propylene glycol, ethanol, soil temperature 60-80, Arlacel-80, beeswax, sheep oil, whiteruss, hexadecanol, gallate ester, agar, triethanolamine, basic amino acid, urea, allantoin, surfactant, polyglycol, cyclodextrin, beta-schardinger dextrin-, phospholipid material etc.
Compound corydalis tuber analgesic preparation, particularly capsule preparations of the present invention, it is as follows that its function cures mainly usage and dosage:
[function cures mainly] dredges the gas pain relieving.Be used for stomachache due to emotional depression and the hyperactive liver-qi attacking the stomach, gastral cavilty distending pain, costalgia of chest, cramp.
[usage and dosage] is oral, one time 2～4,3 times on the one.
[storage] sealing.
[specification] every dress 0.3g.
[term of validity] tentative 2 years.
The present invention is to provide method of quality control, particularly capsule preparations, be the quality of control compound corydalis tuber analgesic preparation at above compound corydalis tuber analgesic preparation.At its characteristics and prescription of the present invention, we provide following method of quality control:
Method of quality control of the present invention may further comprise the steps:
The observation of proterties, the discriminating of content, the inspection of content is carried out assay to the composition that contains, and therefore, the main step of method of quality control of the present invention is:
The observation of proterties, step is:
[proterties] this product is a capsule, and content is lark powder or particle; Bitter.
The discriminating of content, step is:
This product content 4g is got in [discriminating] (1), adds methyl alcohol 50ml, sonicated 30 minutes, filter, filtrate evaporate to dryness, residue add water 10ml makes dissolving, adds strong ammonia solution and transfers to alkalescence (pH8～9), extract 3 times with the ether jolting, each 10ml merges ether extracted liquid, volatilizes, residue adds methyl alcohol 1ml makes dissolving, as need testing solution.Other gets corydalis tuber control medicinal material 1g, adds methyl alcohol 50ml, gets control medicinal material solution with legal system.It is an amount of that other gets the tetrahydropalmatine reference substance, adds methyl alcohol and make the solution that every 1ml contains 0.5mg, in contrast product solution.Test according to thin-layered chromatography (an appendix VI of Chinese Pharmacopoeia version in 2005 B), draw each 2～3 μ l of above-mentioned three kinds of solution, put respectively on same silica gel g thin-layer plate with the 1%NaOH preparation, with toluene-acetone (9: 2) is developping agent, launch, take out, dry, put the iodine cylinder and take out after about 3 minutes, inspect under the daylight.In the test sample chromatogram, with control medicinal material and the corresponding position of reference substance chromatogram on, show the fluorescence spot of same color.
(2) get this product content 4g, the 10ml that adds diethyl ether, close plug, jolting 10 minutes filters, and filtrate volatilizes, and residue adds acetone 1ml, and dissolving is as need testing solution.Other gets the Paeonol reference substance, adds acetone and makes the solution that every 1ml contains 2mg, in contrast product solution.According to thin-layered chromatography (an appendix VI of Chinese Pharmacopoeia version in 2005 B) test, draw each 10 μ l of above-mentioned need testing solution reference substance solution, put respectively on same silica gel g thin-layer plate, with cyclohexane-ethyl acetate (3: 1) is developping agent, launches, and takes out, dry, spray is with the 5%FeCl of hcl acidifying
3It is clear that ethanolic solution, hot blast blow to the spot colour developing.In the test sample chromatogram, with the corresponding position of reference substance chromatogram on, show the spot of same color.
The inspection of content, step is:
[inspection] should meet every regulation relevant under the capsule item (an appendix I of Chinese Pharmacopoeia version in 2005 L).
The composition that contains is carried out assay, and step is:
[assay] measured according to high performance liquid chromatography (an appendix VI of Chinese Pharmacopoeia version in 2005 D).
Chromatographic condition and system suitability test are filling agent with octadecylsilane chemically bonded silica; Moving phase: methyl alcohol-0.1% phosphoric acid solution (transferring pH6.0) (55: 45) with triethylamine; Detect wavelength: 280nm; Sample size: 10 μ l.Column temperature: 40 ℃, number of theoretical plate must not calculate with the tetrahydropalmatine peak and is lower than 3000.
It is an amount of that the tetrahydropalmatine reference substance is got in the preparation of reference substance solution, and accurate the title decides, and adds methyl alcohol and makes the solution that every 1ml contains 46 μ g, promptly.
This product content 1.0g under the content uniformity item is got in the preparation of need testing solution, the accurate title, decide, put in the tool plug conical flask, accurate strong ammonia solution-methyl alcohol (1: 20) mixed solution 50ml that adds, claim to decide weight, water-bath refluxed 60 minutes behind the cold soaking 1h, put cold, claim to decide weight again, supply the weight that subtracts mistake with strong ammonia solution-methyl alcohol (1: 20) mixed solution, shake up, precision is got subsequent filtrate 25ml, put in the tool plug conical flask, decompression and solvent recovery is to doing, and the accurate methyl alcohol 5ml that adds of residue makes dissolving, shakes up, filter (0.45 μ m), promptly.
Accurate respectively reference substance solution and each the 10 μ l of need testing solution of drawing of determination method inject liquid chromatograph, measure, promptly.
Every of this product contains corydalis tuber with tetrahydropalmatine (C
21H
25NO
4) meter, must not be less than 0.049mg.
The present invention has carried out detailed research to the proterties of emodin content limit and this product in the fleece-flower root medicinal material, discriminating, inspection, assay etc.
1. proterties
According to many batch samples character description, this product is a capsule, and content is lark powder or particle; Bitter.
2 differentiate
2.1 the corydalis tuber thin layer is differentiated
Reach " modern practical Chinese crude drug authenticate technology " corydalis tuber thin layer discrimination method with reference to Chinese Pharmacopoeia one one of version in 2000, with corydalis tuber in corydalis tuber control medicinal material and the tetrahydropalmatine discriminating side.Method one: get this product content 4g, add methyl alcohol 50ml, sonicated 30 minutes, filter, filtrate evaporate to dryness, residue add water 10ml dissolving, add strong ammonia solution and transfer to alkalescence (pH8～9), with extracted by ether 3 times, each 10ml merges ether solution, evaporate to dryness, residue adds methyl alcohol 1ml makes dissolving, as need testing solution.Get the negative sample 4g that lacks corydalis tuber medicinal material, get negative controls with legal system.Other gets corydalis tuber control medicinal material 1g, adds methyl alcohol 50ml, gets control medicinal material solution with legal system.It is an amount of to get the tetrahydropalmatine reference substance again, adds methyl alcohol and makes the solution that every 1ml contains 0.5mg, in contrast product solution.According to thin-layered chromatography (appendix VI B) test, draw each 2～3 μ l of above-mentioned solution, put respectively on same silica gel g thin-layer plate with the 1%NaOH preparation, with toluene-acetone (9: 2) is developping agent, launches, and takes out, dry, put the iodine cylinder and take out after about 3 minutes, inspect under the daylight.
Method two: identical with the sample preparation and the coloration method of method one, using normal hexane-chloroform-methanol (7.5: 4: 1) instead is developping agent, launches.The result shows that with toluene-acetone (9: 2) be developping agent, separates better, and spot is more clear, and is negative noiseless, through test of many times, and the method favorable reproducibility.So list quality standard in.
2.2 the paniculate swallowwort thin layer is differentiated
Differentiate with reference to " modern practical Chinese crude drug authenticate technology " paniculate swallowwort thin-layer chromatography, with paniculate swallowwort in the Paeonol reference substance discriminating side.Get this product content 4g, the 10ml that adds diethyl ether, close plug, jolting 10 minutes filters, and filtrate volatilizes, and residue adds acetone 1ml, and dissolving is as need testing solution.Get the negative control product 4g that lacks paniculate swallowwort, get negative controls with legal system.Other gets the Paeonol reference substance, adds acetone and makes the solution that every 1ml contains 2mg, in contrast product solution.According to the thin-layered chromatography test, draw above-mentioned need testing solution 5 μ l, reference substance solution 10 μ l, put on same silica gel g thin-layer plate respectively.Method one: with cyclohexane-ethyl acetate (3: 1) is developping agent, launches, and takes out, and dries, and spray is with the 5%FeCl of hcl acidifying
3It is clear that ethanolic solution, hot blast blow to the spot colour developing.
Method two: with cyclohexane-chloroform-absolute ethyl alcohol (7: 3: 1) is developping agent, launches, and takes out, and dries, and spray is with the 2,4 dinitrophenyl hydrazine test solution, and daylight is inspected.Method one spray as a result is with the 5%FeCl of hcl acidifying
3Behind the ethanolic solution, the hot blast colour developing, spot is more clear obviously, and is negative noiseless.Through test of many times, the method favorable reproducibility.So list quality standard in.
3 check
3.1 heavy metal inspection: by " appendix an IX of Chinese pharmacopoeia version in 2000 the E heavy metal inspection technique second method inspection.
Get this product content 2.0g, 4.0g respectively, put in the crucible of ignition to constant weight, slowly blazing to charing fully, put cold, add sulfuric acid 1.0ml, make just moistening, after eliminating with low-temperature heat to sulfuric acid, add nitric acid 0.5ml, evaporate to dryness after eliminating to the nitrogen oxide steam, is put cold, blazingly make complete ashing at 500～600 ℃, put coldly, add hydrochloric acid 2ml and put evaporate to dryness in the water-bath, add water 15ml, drip ammonia solution to instructions phenolphthalein solution is shown neutral, add acetate buffer (pH3.5) 2ml again, the low-grade fever dissolving is in the dislocation nessler colorimetric tube, thin up becomes 25ml, gets sample hose 1,2.Other gets the reagent of preparation need testing solution, puts evaporate to dryness in the porcelain dish, adds acetate buffer (pH3.5) 2ml and water 15ml, after the low-grade fever dissolving, in the dislocation nessler colorimetric tube, add standard lead solution 2ml (every 1ml is equivalent to the Pb of 10 μ g), be diluted with water to 25ml again, get standard lead solution pipe.Check [" Chinese pharmacopoeia version in 2000 appendix IXE heavy metal inspection technique (second method)], promptly. in accordance with the lawThe color that three batch sample testing result sample hose solution 1,2 show all is shallower than standard lead solution pipe color, illustrates that this product content of beary metal is lower than 10/1000000ths, and is up to specification.So do not list quality standard in.
3.2 arsenic salt is checked: by " appendix an IXF of Chinese pharmacopoeia version in 2000 the arsenic salt inspection technique first method inspection.
Get this product content 1.0g, 2.0g respectively, put in the crucible of ignition to constant weight adding calcium hydroxide 0.5g, mixing, add water and stir on a small quantity, drying, burning with little baked wheaten cake earlier makes charing, again 500～600 ℃ of blazing ashing extremely fully, add hydrochloric acid 5ml, water 21ml gets sample hose 1,2.Check [Chinese Pharmacopoeia version in 2000 appendix IX F arsenic salt inspection technique (first method)], promptly in accordance with the law.The arsenic spot color that testing result three batch samples are produced is shallower than standard arsenic spot color, illustrates that this product arsenic salt content all is lower than 2/1000000ths, and is up to specification.So do not list quality standard in.
3.3 other: should meet that " regulation under Chinese pharmacopoeia appendix capsule of version in 2000 (appendix IL) is carried out moisture, disintegration time limited, content uniformity, limit test of microbe to three batches of pilot products respectively, and the result is all up to specification, sees Table 1.
Table 1 three batch sample check results
4. assay research
This strain changes agent by four traditional Chinese medicine materials such as corydalis tuber (vinegar system), rhizoma cyperi (vinegar system), Fructus meliae toosendan, paniculate swallowworts, main ingredient in the corydalis tuber side of being, so the content assaying method of the contained tetrahydropalmatine of corydalis tuber in the preparation has been set up in research through test of many times, and has carried out methodological study.
4.1 Tianjin, instrument island LC-10ATvp high performance liquid chromatograph, the LC-10ATvp infusion pump; SPD-10Avp secondary array detector; The SCL-10Avp system controller; CTO-10ASvp thermocolumn case; The CLASS-VP6.1 workstation data processing system; Microsyringe (25 μ l), HAMILTON company; Supersonic wave cleaning machine (250W, Beijing's Medical Devices two factories).
4.2 (Nat'l Pharmaceutical ﹠ Biological Products Control Institute provides, for assay usefulness, lot number: 110726-200409) for reagent reagent methyl alcohol (chromatographically pure), water for injection, tetrahydropalmatine reference substance.
4.3 chromatographic condition chromatographic column: the C18 of Chinese nation (4.6 * 200mm); Moving phase: methyl alcohol-0.1% phosphoric acid solution (transferring pH6.0) (55: 45) with triethylamine; Detect wavelength: 280nm; Sample size: 10 μ l.Column temperature: 40 ℃, flow velocity: 1.2ml/min.
4.4 system suitability test
Get tetrahydropalmatine reference substance solution, need testing solution respectively, reach the negative controls injection liquid chromatograph that lacks corydalis tuber, record chromatogram.As seen, under this test condition, the tetrahydropalmatine peak becomes swarming to separate (degree of separation is greater than 1.5) fully with close other, and negative sample is noiseless.Theoretical cam curve does not hang down 3000 in the tetrahydropalmatine peak.
4.5 linear relationship is investigated
4.5.1 the preparation of standard solution
Precision takes by weighing tetrahydropalmatine reference substance 11.55mg, puts in the 50ml measuring bottle, and dissolve with methanol shakes up to scale, and the accurate 10ml that draws puts in the 50ml measuring bottle, and dissolve with methanol shakes up to scale, promptly gets (every 1ml contains tetrahydropalmatine 46.20 μ g).
4.5.2 the drafting of typical curve
Accurate tetrahydropalmatine reference substance solution (46.20 μ g/ml) 4,7,10,13, the 16 μ l that draw, inject liquid chromatograph respectively, record chromatogram (Fig. 5, table 2), with peak area mass number X (μ g) being carried out linear regression calculates, get equation of linear regression: A=694465.37X-3101.40, r=0.9998.Became the curve of initial point to get with this group data fitting: A=688776.40X, r=0.9997.The μ g number of 4 μ l reference substance sample introductions is calculated in order to last regression equation and fit equation respectively, and both relative deviations are 0.30% as a result.So adopt one point method to calculate content.The tetrahydropalmatine sample size is good in 0.1848～0.7392 μ g scope internal linear relation.
Table 2 tetrahydropalmatine linear relationship is investigated
4.6 extract the investigation of solvent load
Respectively extraction solvent load 30,50,70ml are investigated.Get the about 1g of this product content, the accurate title, decide, put in the tool plug conical flask, precision adds strong ammonia solution-methyl alcohol (1: 20) mixed solution 30 respectively, 50,70ml claims to decide weight, and water-bath refluxed 60 minutes behind the cold soaking 1h, put cold, claim again to decide weight, supply the weight that subtracts mistake, shake up with strong ammonia solution-methyl alcohol (1: 20) mixed solution, precision is got half of subsequent filtrate respective volume respectively, put in the tool plug conical flask decompression and solvent recovery to doing, the accurate methyl alcohol 5ml that adds of residue makes dissolving, (filtering 0.45 μ m), promptly get test liquid, get 10 μ l and inject liquid chromatograph, measure its tetrahydropalmatine content, the results are shown in Table 3.
Table 3 extracts the investigation (n=3) of solvent load
As seen the result selects for use when extracting solvent load and being 50ml and 70ml from table, and extraction effect is all good, for saving solvent so the selective extraction solvent load is 50ml.
4.7 the investigation of reflux extracting time
Respectively to reflux extracting time: 30, investigated in 45,60,75 minutes.Get the about 1g of this product content, the accurate title, decide, put in the tool plug conical flask, precision adds strong ammonia solution-methyl alcohol (1: 20) mixed solution 50ml, claims to decide weight water-bath backflow 30 respectively behind the cold soaking 1h, 45,60,75 minutes, put cold, claim again to decide weight, supply the weight that subtracts mistake, shake up with strong ammonia solution-methyl alcohol (1: 20) mixed solution, precision is got subsequent filtrate 25ml, put in the tool plug conical flask decompression and solvent recovery to doing, the accurate methyl alcohol 5ml that adds of residue makes dissolving, (filtering 0.45 μ m), promptly get test liquid, get 10 μ l and inject liquid chromatograph, measure its tetrahydropalmatine content, the results are shown in Table 4.
The different reflux extracting times of table 4 are to the investigation (n=3) of tetrahydropalmatine extraction effect
From table the result as seen, water-bath refluxes and tetrahydropalmatine can be extracted fully in 60 minutes behind the cold soaking 1h, so selection refluxing extraction 60 minutes.
4.8 precision test
Accurate tetrahydropalmatine reference substance solution (46.20 μ g/ml) the 10 μ l that draw repeat sample introduction 5 times, record chromatogram (Fig. 7), and trying to achieve average peak area is 333052.6, relative standard deviation is 0.62%, the results are shown in Table 5.
The test of table 5 tetrahydropalmatine precision
4.9 replica test
It is an amount of to get this product content, and the preparation method by test liquid under the assay item in the quality standard prepares 5 parts of test liquids respectively, and sample introduction 10 μ l measure peak area, and the tetrahydropalmatine average content is 0.4527mg/g, and RSD is 0.15%.Show that repeatability is good, the results are shown in Table 6.
The replica test of tetrahydropalmatine in the table 6 preparation test sample
4.10 stability test
It is an amount of to get this product content, prepares test liquid by the preparation method of test liquid under the assay item in the quality standard, measures its tetrahydropalmatine peak area respectively at 0,2,4,6,8 hour, and average peak area is 334514, and RSD is 1.26%.The result shows that tetrahydropalmatine is stable in 8 hours in the need testing solution, the results are shown in Table 7.
The stability test of tetrahydropalmatine in the table 7 preparation test sample
4.11 recovery test
Adopt the application of sample absorption method, it is an amount of that precision takes by weighing this product content (average content is 0.4527mg/g) respectively, put in the tool plug conical flask, accurate tetrahydropalmatine reference substance (is solvent with strong ammonia solution-methyl alcohol (1: 20), make contain tetrahydropalmatine be 4.62 μ g/ml) the solution 50ml that adds, the accurate draft of sighting target contains the survey method and prepares 5 parts of need testing solutions, sample introduction 10 μ l, the record chromatogram is measured content, calculate recovery rate (seeing Table 8).
Tetrahydropalmatine is measured recovery test in table 8 need testing solution
The result: average recovery rate is 99.61%, and RSD is 1.34%, proves that this method is feasible.
4.12 sample determination and content limit are determined
Prepare need testing solution and reference substance solution by the quality standard draft, sample introduction 10 μ l write down chromatogram respectively, measure peak area, are calculated as follows content:
In the formula: Ai: the need testing solution peak area
As: reference substance solution peak area
Cs: reference substance (tetrahydropalmatine) solution concentration (mg/ml)
W: sampling amount (g)
M: average loading amount (g/ grain)
According to the assay method of tetrahydropalmatine in the quality standard (draft), test agent in 7 batches of test specimens and 3 batches is measured its contained tetrahydropalmatine content, measurement result sees Table 9.
Tetrahydropalmatine assay result (n=2) in table 9 10 batch samples
Corydalis tuber is used as medicine for the medicinal material fine powder in this product technology, so think that tetrahydropalmatine all shifts.Therefore the tetrahydropalmatine content limit is calculated as follows in the preparation:
Tetrahydropalmatine medicinal material amount in tetrahydropalmatine content limit (mg/ grain)=preparation * corydalis tuber medicinal material tetrahydropalmatine limit * rate of transform * 1000=98/1000 * 0.050% * 100% * 1000=0.049 (mg/ grain).((C21H25NO4) must not be less than 0.049mg in tetrahydropalmatine so tentative every of this product contains corydalis tuber medicinal material.10 batch sample measurement results are all in scope.It is higher that Yin Ben criticizes medicinal material content, so that formulation content all has slightly is higher.
More than this product described in the method for quality control of the present invention, be meant compound analgesic capsule of corydalis tuber according to technology preparation of the present invention, when other formulations are measured, refer to corresponding other formulations.
The invention has the advantages that: method of quality control of the present invention has guaranteed that the quality inspection standard of preparation of the present invention can be than the qualitative character of effectively controlling preparation comprehensively, have accuracy and advance, can be used as the effective technology means of the stability of quality control and investigation technology.Be of great importance to improving the quality of products.
Embodiment:
Further specify the present invention by the following examples, but not as limitation of the present invention.
The quality control of embodiment 1 compound analgesic capsule of corydalis tuber
Method of quality control of the present invention may further comprise the steps:
The observation of proterties, step is:
[proterties] this product is a capsule, and content is lark powder or particle; Bitter.
The discriminating of content, step is:
This product content 4g is got in [discriminating] (1), adds methyl alcohol 50ml, sonicated 30 minutes, filter, filtrate evaporate to dryness, residue add water 10ml makes dissolving, adds strong ammonia solution and transfers to alkalescence (pH8～9), extract 3 times with the ether jolting, each 10ml merges ether extracted liquid, volatilizes, residue adds methyl alcohol 1ml makes dissolving, as need testing solution.Other gets corydalis tuber control medicinal material 1g, adds methyl alcohol 50ml, gets control medicinal material solution with legal system.It is an amount of that other gets the tetrahydropalmatine reference substance, adds methyl alcohol and make the solution that every 1ml contains 0.5mg, in contrast product solution.Test according to thin-layered chromatography (an appendix VI of Chinese Pharmacopoeia version in 2005 B), draw each 2～3 μ l of above-mentioned three kinds of solution, put respectively on same silica gel g thin-layer plate with the 1%NaOH preparation, with toluene-acetone (9: 2) is developping agent, launch, take out, dry, put the iodine cylinder and take out after about 3 minutes, inspect under the daylight.In the test sample chromatogram, with control medicinal material and the corresponding position of reference substance chromatogram on, show the fluorescence spot of same color.
(2) get this product content 4g, the 10ml that adds diethyl ether, close plug, jolting 10 minutes filters, and filtrate volatilizes, and residue adds acetone 1ml, and dissolving is as need testing solution.Other gets the Paeonol reference substance, adds acetone and makes the solution that every 1ml contains 2mg, in contrast product solution.According to thin-layered chromatography (an appendix VI of Chinese Pharmacopoeia version in 2005 B) test, draw each 10 μ l of above-mentioned need testing solution reference substance solution, put respectively on same silica gel g thin-layer plate, with cyclohexane-ethyl acetate (3: 1) is developping agent, launches, and takes out, dry, spray is with the 5%FeCl of hcl acidifying
3It is clear that ethanolic solution, hot blast blow to the spot colour developing.In the test sample chromatogram, with the corresponding position of reference substance chromatogram on, show the spot of same color.
The inspection of content, step is:
[inspection] should meet every regulation relevant under the capsule item (an appendix I of Chinese Pharmacopoeia version in 2005 L).
The composition that contains is carried out assay, and step is:
[assay] measured according to high performance liquid chromatography (an appendix VI of Chinese Pharmacopoeia version in 2005 D).
Chromatographic condition and system suitability test are filling agent with octadecylsilane chemically bonded silica; Moving phase: methyl alcohol-0.1% phosphoric acid solution (transferring pH6.0) (55: 45) with triethylamine; Detect wavelength: 280nm; Sample size: 10 μ l.Column temperature: 40 ℃, number of theoretical plate must not calculate with the tetrahydropalmatine peak and is lower than 3000.
It is an amount of that the tetrahydropalmatine reference substance is got in the preparation of reference substance solution, and accurate the title decides, and adds methyl alcohol and makes the solution that every 1ml contains 46 μ g, promptly.
This product content 1.0g under the content uniformity item is got in the preparation of need testing solution, the accurate title, decide, put in the tool plug conical flask, accurate strong ammonia solution-methyl alcohol (1: 20) mixed solution 50ml that adds, claim to decide weight, water-bath refluxed 60 minutes behind the cold soaking 1h, put cold, claim to decide weight again, supply the weight that subtracts mistake with strong ammonia solution-methyl alcohol (1: 20) mixed solution, shake up, precision is got subsequent filtrate 25ml, put in the tool plug conical flask, decompression and solvent recovery is to doing, and the accurate methyl alcohol 5ml that adds of residue makes dissolving, shakes up, filter (0.45 μ m), promptly.
Accurate respectively reference substance solution and each the 10 μ l of need testing solution of drawing of determination method inject liquid chromatograph, measure, promptly.
Every of this product contains corydalis tuber with tetrahydropalmatine (C
21H
25NO
4) meter, must not be less than 0.049mg.
The quality control of embodiment 2 compound YUANHU ZHITONG KELIs
Method of quality control of the present invention may further comprise the steps:
The observation of proterties, step is:
[proterties] this product is a granule, is lark powder or particle; Bitter.
The discriminating of content, step is:
This product 4g is got in [discriminating] (1), adds methyl alcohol 50ml, sonicated 30 minutes, filter, filtrate evaporate to dryness, residue add water 10ml makes dissolving, adds strong ammonia solution and transfers to alkalescence (pH8～9), extract 3 times with the ether jolting, each 10ml merges ether extracted liquid, volatilizes, residue adds methyl alcohol 1ml makes dissolving, as need testing solution.Other gets corydalis tuber control medicinal material 1g, adds methyl alcohol 50ml, gets control medicinal material solution with legal system.It is an amount of that other gets the tetrahydropalmatine reference substance, adds methyl alcohol and make the solution that every 1ml contains 0.5mg, in contrast product solution.Test according to thin-layered chromatography (an appendix VI of Chinese Pharmacopoeia version in 2005 B), draw each 2～3 μ l of above-mentioned three kinds of solution, put respectively on same silica gel g thin-layer plate with the 1%NaOH preparation, with toluene-acetone (9: 2) is developping agent, launch, take out, dry, put the iodine cylinder and take out after about 3 minutes, inspect under the daylight.In the test sample chromatogram, with control medicinal material and the corresponding position of reference substance chromatogram on, show the fluorescence spot of same color.
(2) get this product 4g, the 10ml that adds diethyl ether, close plug, jolting 10 minutes filters, and filtrate volatilizes, and residue adds acetone 1ml, and dissolving is as need testing solution.Other gets the Paeonol reference substance, adds acetone and makes the solution that every 1ml contains 2mg, in contrast product solution.According to thin-layered chromatography (an appendix VI of Chinese Pharmacopoeia version in 2005 B) test, draw each 10 μ l of above-mentioned need testing solution reference substance solution, put respectively on same silica gel g thin-layer plate, with cyclohexane-ethyl acetate (3: 1) is developping agent, launches, and takes out, dry, spray is with the 5%FeCl of hcl acidifying
3It is clear that ethanolic solution, hot blast blow to the spot colour developing.In the test sample chromatogram, with the corresponding position of reference substance chromatogram on, show the spot of same color.
The inspection of content, step is:
[inspection] should meet every regulation relevant under the granule item (appendix of Chinese Pharmacopoeia version in 2005).
The composition that contains is carried out assay, and step is:
[assay] measured according to high performance liquid chromatography (an appendix VI of Chinese Pharmacopoeia version in 2005 D).
Chromatographic condition and system suitability test are filling agent with octadecylsilane chemically bonded silica; Moving phase: methyl alcohol-0.1% phosphoric acid solution (transferring pH6.0) (55: 45) with triethylamine; Detect wavelength: 280nm; Sample size: 10 μ l.Column temperature: 40 ℃, number of theoretical plate must not calculate with the tetrahydropalmatine peak and is lower than 3000.
It is an amount of that the tetrahydropalmatine reference substance is got in the preparation of reference substance solution, and accurate the title decides, and adds methyl alcohol and makes the solution that every 1ml contains 46 μ g, promptly.
This product 1.0g under the content uniformity item is got in the preparation of need testing solution, the accurate title, decide, put in the tool plug conical flask, accurate strong ammonia solution-methyl alcohol (1: 20) mixed solution 50ml that adds, claim to decide weight, water-bath refluxed 60 minutes behind the cold soaking 1h, put cold, claim to decide weight again, supply the weight that subtracts mistake with strong ammonia solution-methyl alcohol (1: 20) mixed solution, shake up, precision is got subsequent filtrate 25ml, put in the tool plug conical flask, decompression and solvent recovery is to doing, and the accurate methyl alcohol 5ml that adds of residue makes dissolving, shakes up, filter (0.45 μ m), promptly.
Accurate respectively reference substance solution and each the 10 μ l of need testing solution of drawing of determination method inject liquid chromatograph, measure, promptly.
The quality control of embodiment 3 compound tablet of Corydalis tuber for alleviating pains
Method of quality control of the present invention may further comprise the steps:
The observation of proterties, step is:
[proterties] this product is a tablet, and content is lark powder or particle; Bitter.
The discriminating of content, step is:
40 of this product are got in [discriminating] (1), add methyl alcohol 50ml, sonicated 30 minutes, filter, filtrate evaporate to dryness, residue add water 10ml makes dissolving, adds strong ammonia solution and transfers to alkalescence (pH8～9), extract 3 times with the ether jolting, each 10ml merges ether extracted liquid, volatilizes, residue adds methyl alcohol 1ml makes dissolving, as need testing solution.Other gets corydalis tuber control medicinal material 1g, adds methyl alcohol 50ml, gets control medicinal material solution with legal system.It is an amount of that other gets the tetrahydropalmatine reference substance, adds methyl alcohol and make the solution that every 1ml contains 0.5mg, in contrast product solution.Test according to thin-layered chromatography (an appendix VI of Chinese Pharmacopoeia version in 2005 B), draw each 2～3 μ l of above-mentioned three kinds of solution, put respectively on same silica gel g thin-layer plate with the 1%NaOH preparation, with toluene-acetone (9: 2) is developping agent, launch, take out, dry, put the iodine cylinder and take out after about 3 minutes, inspect under the daylight.In the test sample chromatogram, with control medicinal material and the corresponding position of reference substance chromatogram on, show the fluorescence spot of same color.
(2) get 40 of this product, the 10ml that adds diethyl ether, close plug, jolting 10 minutes filters, and filtrate volatilizes, and residue adds acetone 1ml, and dissolving is as need testing solution.Other gets the Paeonol reference substance, adds acetone and makes the solution that every 1ml contains 2mg, in contrast product solution.According to thin-layered chromatography (an appendix VI of Chinese Pharmacopoeia version in 2005 B) test, draw each 10 μ l of above-mentioned need testing solution reference substance solution, put respectively on same silica gel g thin-layer plate, with cyclohexane-ethyl acetate (3: 1) is developping agent, launches, and takes out, dry, spray is with the 5%FeCl of hcl acidifying
3It is clear that ethanolic solution, hot blast blow to the spot colour developing.In the test sample chromatogram, with the corresponding position of reference substance chromatogram on, show the spot of same color.
The inspection of content, step is:
[inspection] should meet every regulation relevant under the tablet item (appendix of Chinese Pharmacopoeia version in 2005).
The composition that contains is carried out assay, and step is:
[assay] measured according to high performance liquid chromatography (an appendix VI of Chinese Pharmacopoeia version in 2005 D).
Chromatographic condition and system suitability test are filling agent with octadecylsilane chemically bonded silica; Moving phase: methyl alcohol-0.1% phosphoric acid solution (transferring pH6.0) (55: 45) with triethylamine; Detect wavelength: 280nm; Sample size: 10 μ l.Column temperature: 40 ℃, number of theoretical plate must not calculate with the tetrahydropalmatine peak and is lower than 3000.
It is an amount of that the tetrahydropalmatine reference substance is got in the preparation of reference substance solution, and accurate the title decides, and adds methyl alcohol and makes the solution that every 1ml contains 46 μ g, promptly.
10 of this product are got under the content uniformity item in the preparation of need testing solution, the accurate title, decide, put in the tool plug conical flask, accurate strong ammonia solution-methyl alcohol (1: 20) mixed solution 50ml that adds, claim to decide weight, water-bath refluxed 60 minutes behind the cold soaking 1h, put cold, claim to decide weight again, supply the weight that subtracts mistake with strong ammonia solution-methyl alcohol (1: 20) mixed solution, shake up, precision is got subsequent filtrate 25ml, put in the tool plug conical flask, decompression and solvent recovery is to doing, and the accurate methyl alcohol 5ml that adds of residue makes dissolving, shakes up, filter (0.45 μ m), promptly.
Accurate respectively reference substance solution and each the 10 μ l of need testing solution of drawing of determination method inject liquid chromatograph, measure, promptly.
Every of this product contains corydalis tuber with tetrahydropalmatine (C
21H
25NO
4) meter, must not be less than 0.049mg.
Claims (4)
1, a kind of detection method of compound corydalis tuber analgesic preparation, described compound corydalis tuber analgesic preparation is a compound corydalis tuber analgesic oral formulations, comprise capsule, granule, tablet, oral liquid, syrup, described detection method comprises the discriminating step, described discriminating is the traditional Chinese medicine ingredients of differentiating in the compound corydalis tuber analgesic preparation, and described traditional Chinese medicine ingredients is selected from corydalis tuber, paniculate swallowwort, it is characterized in that, differentiate to be:
A, get this product content 4g, add methyl alcohol 50ml, sonicated 30 minutes, filter, filtrate evaporate to dryness, residue add water 10ml makes dissolving, adds strong ammonia solution and transfers pH8 to 9 to be alkalescence, extract 3 times with the ether jolting, each 10ml merges ether extracted liquid, volatilizes, residue adds methyl alcohol 1ml makes dissolving, as need testing solution.Other gets corydalis tuber control medicinal material 1g, adds methyl alcohol 50ml, gets control medicinal material solution with legal system.It is an amount of that other gets the tetrahydropalmatine reference substance, adds methyl alcohol and make the solution that every 1ml contains 0.5mg, in contrast product solution.Test according to an appendix VI of Chinese Pharmacopoeia version in 2005 B thin-layered chromatography, draw each 2～3 μ l of above-mentioned three kinds of solution, put respectively on same silica gel g thin-layer plate with the 1%NaOH preparation, with toluene-acetone is developping agent at 9: 2, launch, take out, dry, put the iodine cylinder and take out after about 3 minutes, inspect under the daylight.In the test sample chromatogram, with control medicinal material and the corresponding position of reference substance chromatogram on, show the fluorescence spot of same color;
B, get this product content 4g, the 10ml that adds diethyl ether, close plug, jolting 10 minutes filters, and filtrate volatilizes, and residue adds acetone 1ml, and dissolving is as need testing solution.Other gets the Paeonol reference substance, adds acetone and makes the solution that every 1ml contains 2mg, in contrast product solution.According to the test of an appendix VI of Chinese Pharmacopoeia version in 2005 B thin-layered chromatography, draw each 10 μ l of above-mentioned need testing solution reference substance solution, put respectively on same silica gel g thin-layer plate, with cyclohexane-ethyl acetate is developping agent at 3: 1, launches, and takes out, dry, spray is with the 5%FeCl of hcl acidifying
3It is clear that ethanolic solution, hot blast blow to the spot colour developing.In the test sample chromatogram, with the corresponding position of reference substance chromatogram on, show the spot of same color.
2, detection method as claimed in claim 1 is characterized in that, described method also comprises the assay step, and described assay is that the content of the middle pharmaceutically active ingredient tetrahydropalmatine in the compound corydalis tuber analgesic preparation is measured, and the assay method step is as follows:
According to an appendix VI of Chinese Pharmacopoeia version in 2005 D high effective liquid chromatography for measuring;
Chromatographic condition and system suitability test are filling agent with octadecylsilane chemically bonded silica; Moving phase: methyl alcohol-0.1% phosphoric acid solution 55: 45, and transfer pH to 6.0 with triethylamine; Detect wavelength: 280nm; Sample size: 10 μ l.Column temperature: 40 ℃, number of theoretical plate must not calculate with the tetrahydropalmatine peak and is lower than 3000;
It is an amount of that the tetrahydropalmatine reference substance is got in the preparation of reference substance solution, and accurate the title decides, and adds methyl alcohol and makes the solution that every 1ml contains 46 μ g, promptly;
This product content 1.0g under the content uniformity item is got in the preparation of need testing solution, the accurate title, decide, put in the tool plug conical flask, accurate 1: the 20 mixed solution 50ml of strong ammonia solution-methyl alcohol that adds, claim to decide weight, water-bath refluxed 60 minutes behind the cold soaking 1h, put cold, claim to decide weight again, supply the weight that subtracts mistake with 1: 20 mixed solution of strong ammonia solution-methyl alcohol, shake up, precision is got subsequent filtrate 25ml, put in the tool plug conical flask, decompression and solvent recovery is to doing, and the accurate methyl alcohol 5ml that adds of residue makes dissolving, shakes up, filter with filter membrane 0.45 μ m, promptly;
Accurate respectively reference substance solution and each the 10 μ l of need testing solution of drawing of determination method inject liquid chromatograph, measure, promptly; Every of this product contains corydalis tuber with tetrahydropalmatine C
21H
25NO
4Meter must not be less than 0.049mg.
3, detection method as claimed in claim 1 is characterized in that, described method is as follows for the capsule step:
The observation of proterties, step is:
Proterties this product is a capsule, and content is lark powder or particle; Bitter;
The discriminating of content, step is:
Differentiate a, get this product content 4g, add methyl alcohol 50ml, sonicated 30 minutes, filter, filtrate evaporate to dryness, residue add water 10ml makes dissolving, adds strong ammonia solution and transfers pH8 to 9 to be alkalescence, extract 3 times with the ether jolting, each 10ml merges ether extracted liquid, volatilizes, residue adds methyl alcohol 1ml makes dissolving, as need testing solution.Other gets corydalis tuber control medicinal material 1g, adds methyl alcohol 50ml, gets control medicinal material solution with legal system.It is an amount of that other gets the tetrahydropalmatine reference substance, adds methyl alcohol and make the solution that every 1ml contains 0.5mg, in contrast product solution.Test according to an appendix VI of Chinese Pharmacopoeia version in 2005 B thin-layered chromatography, draw each 2～3 μ l of above-mentioned three kinds of solution, put respectively on same silica gel g thin-layer plate with the 1%NaOH preparation, with toluene-acetone is developping agent at 9: 2, launch, take out, dry, put the iodine cylinder and take out after about 3 minutes, inspect under the daylight.In the test sample chromatogram, with control medicinal material and the corresponding position of reference substance chromatogram on, show the fluorescence spot of same color;
B, get this product content 4g, the 10ml that adds diethyl ether, close plug, jolting 10 minutes filters, and filtrate volatilizes, and residue adds acetone 1ml, and dissolving is as need testing solution.Other gets the Paeonol reference substance, adds acetone and makes the solution that every 1ml contains 2mg, in contrast product solution.According to the test of an appendix VI of Chinese Pharmacopoeia version in 2005 B thin-layered chromatography, draw each 10 μ l of above-mentioned need testing solution reference substance solution, put respectively on same silica gel g thin-layer plate, with cyclohexane-ethyl acetate is developping agent at 3: 1, launches, and takes out, dry, spray is with the 5%FeCl of hcl acidifying
3It is clear that ethanolic solution, hot blast blow to the spot colour developing.In the test sample chromatogram, with the corresponding position of reference substance chromatogram on, show the spot of same color;
The inspection of content, step is:
Inspection should meet relevant every regulation under an appendix I of Chinese Pharmacopoeia version in 2005 the L capsule item;
The composition that contains is carried out assay, and step is:
Assay is according to an appendix VI of Chinese Pharmacopoeia version in 2005 D high effective liquid chromatography for measuring;
Chromatographic condition and system suitability test are filling agent with octadecylsilane chemically bonded silica; Moving phase: methyl alcohol-0.1% phosphoric acid solution 55: 45, and transfer pH to 6.0 with triethylamine; Detect wavelength: 280nm; Sample size: 10 μ l.Column temperature: 40 ℃, number of theoretical plate must not calculate with the tetrahydropalmatine peak and is lower than 3000;
It is an amount of that the tetrahydropalmatine reference substance is got in the preparation of reference substance solution, and accurate the title decides, and adds methyl alcohol and makes the solution that every 1ml contains 46 μ g, promptly;
This product content 1.0g under the content uniformity item is got in the preparation of need testing solution, the accurate title, decide, put in the tool plug conical flask, accurate 1: the 20 mixed solution 50ml of strong ammonia solution-methyl alcohol that adds, claim to decide weight, water-bath refluxed 60 minutes behind the cold soaking 1h, put cold, claim to decide weight again, supply the weight that subtracts mistake with 1: 20 mixed solution of strong ammonia solution-methyl alcohol, shake up, precision is got subsequent filtrate 25ml, put in the tool plug conical flask, decompression and solvent recovery is to doing, and the accurate methyl alcohol 5ml that adds of residue makes dissolving, shakes up, filter with filter membrane 0.45 μ m, promptly;
Accurate respectively reference substance solution and each the 10 μ l of need testing solution of drawing of determination method inject liquid chromatograph, measure, promptly;
Every of this product contains corydalis tuber with tetrahydropalmatine C
21H
25NO
4Meter must not be less than 0.049mg.
4, detection method as claimed in claim 1 is characterized in that, described method is as follows for the sheet step:
The observation of proterties, step is:
Proterties this product is a tablet, and content is lark powder or particle; Bitter;
The discriminating of content, step is:
Differentiate a, get 40 of this product, add methyl alcohol 50ml, sonicated 30 minutes, filter, filtrate evaporate to dryness, residue add water 10ml makes dissolving, adds strong ammonia solution and transfers pH8 to 9 to be alkalescence, extract 3 times with the ether jolting, each 10ml merges ether extracted liquid, volatilizes, residue adds methyl alcohol 1ml makes dissolving, as need testing solution.Other gets corydalis tuber control medicinal material 1g, adds methyl alcohol 50ml, gets control medicinal material solution with legal system.It is an amount of that other gets the tetrahydropalmatine reference substance, adds methyl alcohol and make the solution that every 1ml contains 0.5mg, in contrast product solution.Test according to an appendix VI of Chinese Pharmacopoeia version in 2005 B thin-layered chromatography, draw each 2～3 μ l of above-mentioned three kinds of solution, put respectively on same silica gel g thin-layer plate with the 1%NaOH preparation, with toluene-acetone is developping agent at 9: 2, launch, take out, dry, put the iodine cylinder and take out after about 3 minutes, inspect under the daylight.In the test sample chromatogram, with control medicinal material and the corresponding position of reference substance chromatogram on, show the fluorescence spot of same color;
B, get 40 of this product, the 10ml that adds diethyl ether, close plug, jolting 10 minutes filters, and filtrate volatilizes, and residue adds acetone 1ml, and dissolving is as need testing solution.Other gets the Paeonol reference substance, adds acetone and makes the solution that every 1ml contains 2mg, in contrast product solution.According to the test of an appendix VI of Chinese Pharmacopoeia version in 2005 B thin-layered chromatography, draw each 10 μ l of above-mentioned need testing solution reference substance solution, put respectively on same silica gel g thin-layer plate, with cyclohexane-ethyl acetate is developping agent at 3: 1, launches, and takes out, dry, spray is with the 5%FeCl of hcl acidifying
3It is clear that ethanolic solution, hot blast blow to the spot colour developing.In the test sample chromatogram, with the corresponding position of reference substance chromatogram on, show the spot of same color;
The inspection of content, step is:
Inspection should meet relevant every regulation under an appendix tablet of Chinese Pharmacopoeia version in 2005 item;
The composition that contains is carried out assay, and step is:
Assay is according to an appendix VI of Chinese Pharmacopoeia version in 2005 D high effective liquid chromatography for measuring;
Chromatographic condition and system suitability test are filling agent with octadecylsilane chemically bonded silica; Moving phase: methyl alcohol-0.1% phosphoric acid solution 55: 45, and transfer pH to 6.0 with triethylamine; Detect wavelength: 280nm; Sample size: 10 μ l.Column temperature: 40 ℃, number of theoretical plate must not calculate with the tetrahydropalmatine peak and is lower than 3000;
It is an amount of that the tetrahydropalmatine reference substance is got in the preparation of reference substance solution, and accurate the title decides, and adds methyl alcohol and makes the solution that every 1ml contains 46 μ g, promptly;
10 of this product are got under the content uniformity item in the preparation of need testing solution, the accurate title, decide, put in the tool plug conical flask, accurate 1: the 20 mixed solution 50ml of strong ammonia solution-methyl alcohol that adds, claim to decide weight, water-bath refluxed 60 minutes behind the cold soaking 1h, put cold, claim to decide weight again, supply the weight that subtracts mistake with 1: 20 mixed solution of strong ammonia solution-methyl alcohol, shake up, precision is got subsequent filtrate 25ml, put in the tool plug conical flask, decompression and solvent recovery is to doing, and the accurate methyl alcohol 5ml that adds of residue makes dissolving, shakes up, filter with filter membrane 0.45 μ m, promptly;
Accurate respectively reference substance solution and each the 10 μ l of need testing solution of drawing of determination method inject liquid chromatograph, measure, promptly;
Every of this product contains corydalis tuber with tetrahydropalmatine C
21H
25NO
4Meter must not be less than 0.049mg.
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| CN101435812A (en) * | 2008-12-15 | 2009-05-20 | 青岛华仁太医药业有限公司 | Puyuanhewei capsule quality standard detecting method |
| CN102210795A (en) * | 2010-04-05 | 2011-10-12 | 葫芦岛国帝药业有限责任公司 | Traditional Chinese medicine composition for treating various pains |
| CN103033585A (en) * | 2011-09-30 | 2013-04-10 | 西安千禾药业有限责任公司 | Method for detecting medicaments for treating mammitis and hyperplasia of mammary glands |
| CN105467039A (en) * | 2015-12-29 | 2016-04-06 | 甘肃陇神戎发药业股份有限公司 | HPLC measurement method for content of multi-index components in rhizoma corydalis pain relieving drop pills |
| CN109316543A (en) * | 2018-10-22 | 2019-02-12 | 江苏七0七天然制药有限公司 | A kind of compound analgesic capsule of corydalis tuber and preparation method thereof |
| CN112394120A (en) * | 2020-12-01 | 2021-02-23 | 江苏七○七天然制药有限公司 | Method for detecting components of compound rhizoma corydalis pain-relieving medicine |
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| 中药成方制剂第7册. 药典委员会，123，药典委员会. 1993 |
| 中药成方制剂第7册. 药典委员会，123，药典委员会. 1993 * |
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