Method for determining content of bismuth in colloidal bismuth pectin or preparation containing colloidal bismuth pectin

A technology of colloidal bismuth pectin and a determination method, which is applied in the direction of material analysis, biological testing, and measuring devices through observation of the impact on chemical indicators, can solve problems such as difficult to use and determine the content of colloidal bismuth pectin and bismuth, and achieve High accuracy, good linear relationship and good repeatability
CN104880428AActive Publication Date: 2015-09-02SHANXI ZHENDONG ANTE BIOPHARMACEUTICAL CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHANXI ZHENDONG ANTE BIOPHARMACEUTICAL CO LTD
Publication Date
2015-09-02
Patent Text Reader

Abstract

The invention provides a method for determining the content of bismuth in colloidal bismuth pectin or a preparation containing the colloidal bismuth pectin. According to the method, the bismuth is dissociated from the colloidal bismuth pectin with protonic acid, the characteristic reaction principle that bismuth reacts with potassium iodide to generate yellow bismuth potassium iodide is used, ultraviolet-visible spectrophotometry is adopted for determining, and the content is calculated through an external standard method. The established method for determining the content of the bismuth in the colloidal bismuth pectin or the preparation containing the colloidal bismuth pectin is high in specificity, good in linearity, high in accuracy, repeatability and sensitivity and capable of serving as a quality control method for the bismuth in the colloidal bismuth pectin or the preparation containing the colloidal bismuth pectin to effectively control product quality.
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Description

technical field

[0001] The invention relates to a method for measuring bismuth content, in particular to a method for measuring bismuth content in macromolecule chelated bismuth-containing substances. Background technique

[0002] Colloidal bismuth pectin is a compound of indeterminate composition formed by pectin and metal bismuth (Bi), yellow powder, containing 14.0%-16.0% pectin bismuth (calculated as bismuth), pH value 8.5-10.5, sedimentation Volume ratio 1-0.97, insoluble in organic solvents such as ethanol, acetone, ether, etc., can form a stable colloidal dispersion in water.

[0003] Colloidal bismuth pectin replaces small molecular acid radicals with biomacromolecular pectin. Compared with other bismuth preparations such as bismuth subgallate, bismuth subnitrate, bismuth salicylate, and bismuth potassium citrate, the colloidal properties are stronger, The viscosity is higher, and the body absorbs less. Colloidal bismuth pectin has a strong affinity with the ulcer ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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