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Method for determining menthol content in traditional Chinese medicine composition through gas chromatography

A gas chromatography and gas chromatography technology, applied in the field of traditional Chinese medicine preparation detection, can solve the problems of long measurement time and complicated procedures

Pending Publication Date: 2020-06-16
GUILIN SANJIN PHARMACEUTICALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, in the above method, there are defects such as the need to adopt the temperature programming method, the measurement time is long, and the program is complicated.

Method used

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  • Method for determining menthol content in traditional Chinese medicine composition through gas chromatography
  • Method for determining menthol content in traditional Chinese medicine composition through gas chromatography
  • Method for determining menthol content in traditional Chinese medicine composition through gas chromatography

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Embodiment 1

[0034] A method for determining the content of menthol in a Chinese medicine composition by gas chromatography, the preparation of the Chinese medicine composition is watermelon frost sore throat spray, characterized in that the method for determining the content of menthol is as follows:

[0035] 1) Preparation of reference substance solution: take an appropriate amount of menthol reference substance, accurately weigh it, add absolute ethanol to make a solution containing 0.2mg per 1ml;

[0036] 2) Preparation of the test solution: Take 1ml of Watermelon Frost Sore Throat Spray, put it in a 100ml measuring bottle, add absolute ethanol to dilute to the mark, shake well, and you get it;

[0037] 3) Chromatographic conditions: chromatographic column: capillary column (HP-FFAP, manufacturer: Agilent, column length: 30 m, inner diameter: 0.53 mm, film thickness: 1.0 μm) with cross-linked bond and polyethylene glycol as stationary phase. Detector: FID, column temperature is 120°C; ...

Embodiment 2

[0041] A method for determining the content of menthol in a Chinese medicine composition by gas chromatography, the preparation of the Chinese medicine composition is Shuyanqing spray, characterized in that the method for determining the content of menthol is as follows:

[0042] 1) Preparation of reference substance solution: take an appropriate amount of menthol reference substance, accurately weigh it, add absolute ethanol to make a solution containing 0.2mg per 1ml;

[0043] 2) Preparation of the test solution: take 1ml of Shuyanqing spray, put it in a 100ml measuring bottle, add absolute ethanol to dilute to the mark, shake well, and you get it;

[0044] 3) Chromatographic conditions: chromatographic column: capillary column (HP-FFAP, manufacturer: Agilent, column length: 30 m, inner diameter: 0.53 mm, film thickness: 1.0 μm) with cross-linked bond and polyethylene glycol as stationary phase. Detector: FID, column temperature is 120°C; inlet temperature is 220°C; detector...

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Abstract

The invention belongs to the detection field of traditional Chinese medicine preparations, and particularly relates to a method for determining a menthol content in a traditional Chinese medicine composition through gas chromatography. The method comprises preparation of a test solution, preparation of a reference solution, chromatographic conditions and a determination method, wherein a column temperature under the chromatographic conditions is constant-temperature operation. And the constant temperature operation is that the column temperature is controlled at 120 DEG C. According to the method for determining the menthol content in the traditional Chinese medicine composition through the gas chromatography, a temperature programming method is not needed, and defects that in the prior art, the temperature programming method needs to be adopted, measuring time is long, and procedures are complex are overcome.

Description

technical field [0001] The invention belongs to the field of detection of traditional Chinese medicine preparations, and in particular relates to a method for measuring menthol content in traditional Chinese medicine compositions by gas chromatography. Background technique [0002] Watermelon Frost Sore Throat Spray and Shuyanqing Spray are made of watermelon frost, baicalin, mountain bean root, mountain silver flower, menthol, borax, licorice and other traditional Chinese medicines, and are two kinds produced by Guilin Sanjin Pharmaceutical Co., Ltd. It can be used as a traditional Chinese medicine preparation for acute pharyngitis caused by wind-heat. Symptoms are: sore throat, dry and burning throat, red and swollen throat, or dysphagia; acute pharyngitis or acute attack of chronic pharyngitis, see the above syndromes. [0003] Menthol is a saturated cyclic alcohol obtained from the fresh stems and leaves of Mentha haplocalyx Briq. through steam distillation, freezing and...

Claims

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Application Information

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IPC IPC(8): G01N30/02
CPCG01N30/02G01N2030/025
Inventor 邹节明任云
Owner GUILIN SANJIN PHARMACEUTICALS CO LTD
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