A high efficient liquid phase analysis method of sodium tanshinone IIA sulfonate
A high-performance liquid analysis and high-performance liquid chromatography technology, applied in the field of medicine, can solve the problems of ineffective analysis, poor precision and sensitivity, and low sensitivity.
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Embodiment 1
[0024] Example 1 Liquid phase analysis of raw materials and preparations of sodium tanshinone IIA sulfonate.
[0025] Take an appropriate amount of raw materials or preparations of this product, and make a 0.5mg / ml solution with mobile phase for testing.
[0026] Analytical column: reversed-phase chromatographic column, C18 column or C8 column, etc.
[0027] Detection wavelength: 271nm or 228nm.
[0028] Flow rate: 0.5ml / min-1.5ml / min
[0029] High-efficiency liquid phase mobile phase conditions: the organic phase can be methanol or acetonitrile, and the aqueous phase can be phosphate buffer or ion pair test solution;
[0030] The aqueous phase phosphate buffer salt is one or more of phosphate solution of 1-100mmol / L, sodium dihydrogen phosphate, disodium hydrogen phosphate, potassium dihydrogen phosphate, dipotassium hydrogen phosphate, ammonium dihydrogen phosphate, etc. , adjust the pH value to 2.5-4.0 with phosphoric acid.
Embodiment 2
[0034] Example 2 Raw material tanshinone IIA sodium sulfonate related substance specificity test.
[0035] With mobile phase methanol: 20mmol / l sodium dihydrogen phosphate solution pH value 3.5 (70:30) as solvent, prepare the following solutions respectively:
[0036] ① Take tanshinone IIA sodium sulfonate raw material equivalent to about 5mg, add 1ml of 1mol / L hydrochloric acid solution, let it stand for 2-3 hours, add mobile phase to dilute to 10ml;
[0037] ②Take tanshinone IIA sodium sulfonate raw material equivalent to about 5mg, add 1ml of 1mol / L sodium hydroxide solution, let it stand for 2-3 hours, add mobile phase to dilute to 10ml;
[0038] ③ Take about 5 mg of tanshinone IIA sodium sulfonate raw material, add 1 ml of 3% hydrogen peroxide solution, let it stand for 2-3 hours, add mobile phase to dilute to 10 ml;
[0039] ④ Take tanshinone IIA sodium sulfonate raw material to prepare a solution of tanshinone IIA sodium sulfonate equivalent to 0.5mg / ml and place it at...
Embodiment 3
[0043] Example 3 Determination of related substances of Tanshinone IIA sodium sulfonate raw material.
[0044]Take three batches of raw materials of sodium tanshinone IIA sulfonate, the manufacturer Shanghai Ziyuan Pharmaceutical Co., Ltd., accurately weigh an appropriate amount (equivalent to about 5mg), put it in a 10ml measuring bottle, add about 10ml of mobile phase, and ultrasonicate for 20 minutes to make sodium tanshinone IIA sulfonate Dissolve the raw material, add mobile phase to the mark, shake well, and filter. Accurately measure an appropriate amount of continued filtrate, and dilute it with mobile phase into a solution containing 0.5 mg of sodium tanshinone IIA sulfonate per 1 ml, as the test solution; accurately measure 1 ml of need test solution, put in a 100 ml measuring bottle, and dilute with mobile phase To the mark, as a control solution; take 10 μl of the control solution and inject it into the liquid chromatograph, and adjust the detection sensitivity so ...
PUM
Property | Measurement | Unit |
---|---|---|
wavelength | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com