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Method for determining ricinine content in castor beans

A technology of castor bean and ricinole, applied in the field of chemical detection, can solve the problems of long time consumption, high professional level requirements of technicians and the like

Inactive Publication Date: 2018-06-15
WUZHOU INST FOR FOOD & DRUG CONTROL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] This method takes a long time and requires high professional level of technicians

Method used

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  • Method for determining ricinine content in castor beans
  • Method for determining ricinine content in castor beans
  • Method for determining ricinine content in castor beans

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] 1. Instruments and reagents

[0024] 1.1 Instrument:

[0025] Electronic analytical balance (XA205DU), ASE350 fast solvent extraction instrument (DIONEX, USA), ThermoU3000UHPLC liquid chromatograph

[0026] 1.2 Water: Class 1 water in accordance with GB / T 6682.

[0027] 2. Method

[0028] 2.1 Preparation of reference substance solution: Take an appropriate amount of ricinine reference substance, accurately weigh it, and add methanol to make a solution containing 0.17 mg of naringin per 1 ml.

[0029] 2.2 Preparation of test solution

[0030] 2.2.1 The method for preparing the test article in the first edition of the 2015 Chinese Pharmacopoeia:

[0031] Take about 2.5g of the powder (passed through the No. 2 sieve), accurately weigh it, put it in a Soxhlet extractor, add an appropriate amount of petroleum ether (60~90℃), heat and reflux for 4 hours, discard the petroleum ether liquid and medicine residue Evaporate the solvent, transfer to a conical flask with stopper, add 50% methan...

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Abstract

The invention discloses a method for determining ricinine content in castor beans, and belongs to the field of chemical detection. The method has the advantages of short extraction time and high detection precision. In the method, castor bean powder is extracted by an ASE method, a methanol extract is collected; and the ricinine content in the methanol extract is determined by a HPLC method. The method can replace a method in the pharmacopoeia to extract ricinine in the castor beans and determine the ricinine content in the castor beans.

Description

Technical field [0001] The invention belongs to the field of chemical detection, in particular to a method for determining the content of ricinine in castor beans. Background technique [0002] The method for preparing the test product in the 2015 edition of the Chinese Pharmacopoeia: Take about 2.5g of the powder (passed through the second sieve), accurately weigh it, put it in a Soxhlet extractor, and add an appropriate amount of petroleum ether (60~90℃). Heat reflux for extraction for 4 hours, discard the petroleum ether solution, evaporate the solvent from the medicine residue, transfer to a stoppered conical flask, accurately add 50% methanol 50ml, weigh it, heat and reflux for 2 hours, let it cool, and then weigh it. , Use 50% methanol to make up the lost weight, shake well, filter, and take the filtrate to get it. [0003] This method is time-consuming and requires a high level of professionalism for technicians. Summary of the invention [0004] In view of the above shortc...

Claims

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Application Information

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IPC IPC(8): G01N30/02G01N30/06
Inventor 陈学松钟水桥梁峰
Owner WUZHOU INST FOR FOOD & DRUG CONTROL