Unlock instant, AI-driven research and patent intelligence for your innovation.

Method for alkalizing silica gel G plate in thin-layer chromatography identification of licorice traditional Chinese medicine preparation

A traditional Chinese medicine preparation and thin-layer chromatography technology, which is applied in the field of medical detection, can solve problems such as poor separation of chromatographic spots, and achieve the effects of easy observation, saving time and cost, and accurate identification results.

Inactive Publication Date: 2019-06-25
FIRST AFFILIATED HOSPITAL OF ANHUI UNIV OF CHINESE MEDICINE
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention provides a method for alkalization of silica gel G plate in thin-layer chromatography identification of licorice traditional Chinese medicine preparations, aiming to solve the problem that most identification methods related to licorice in the prior art use silica gel G plate instead, but in the actual operation process we found that, If ordinary silica gel G thin-layer plates are used instead, due to the strong adsorption of the silica gel thin-layer plates for chemical components with high polarity, the chromatographic spots appear larger and wider due to tailing, resulting in poor separation of chromatographic spots; If hand-made thin-layer plates are used, the chromatographic separation results will also be affected by the particle size of the silica gel used and the thickness uniformity of the prepared silica gel.

Method used

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
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for alkalizing silica gel G plate in thin-layer chromatography identification of licorice traditional Chinese medicine preparation
  • Method for alkalizing silica gel G plate in thin-layer chromatography identification of licorice traditional Chinese medicine preparation
  • Method for alkalizing silica gel G plate in thin-layer chromatography identification of licorice traditional Chinese medicine preparation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A kind of alkalization method of silica gel G plate in thin-layer chromatographic identification of licorice traditional Chinese medicine preparation, comprises the following steps:

[0025] Step 1, the configuration of the alkalization solution: according to the ratio of sodium hydroxide solid: distilled water = 1:100, weigh 10 g of sodium hydroxide solid, add distilled water to dissolve and set the volume to 1000 ml, that is, prepare 1% sodium hydroxide solution;

[0026] Step 2, impregnating the silica gel G plate: put the silica gel G plate to be treated into the container containing the 1% sodium hydroxide solution described in step 1 and soak for 1 minute, and take out the silica gel G plate after 1 minute;

[0027] Step 3, activation of the silica gel G plate: the silica gel G plate described in step 2 is taken out and then air-dried naturally, and after drying, place the silica gel G plate on a heating plate at 105°C and heat for 15-60 minutes;

[0028] Step 4, ...

Embodiment 2

[0031] A kind of alkalization method of silica gel G plate in thin-layer chromatographic identification of licorice traditional Chinese medicine preparation, comprises the following steps:

[0032] Step 1, the configuration of the alkalization solution: according to the ratio of sodium hydroxide solid: distilled water = 1:100, weigh 10 g of sodium hydroxide solid, add distilled water to dissolve and set the volume to 1000 ml, that is, prepare 1% sodium hydroxide solution;

[0033] Step 2, impregnating the silica gel G plates: put the multiple silica gel G plates to be treated into the container containing the 1% sodium hydroxide solution described in step 1 and soak for 1 minute, and take out the silica gel G plates after 1 minute;

[0034] Step 3, activation of silica gel G plates: take out the multiple silica gel G plates described in step 2 and air dry them naturally. After drying, place the silica gel G plates on a heating plate at 105°C for 15 minutes, 30 minutes and 60 mi...

Embodiment 3

[0046] In order to prevent the above-mentioned experimental test solution of different batches from causing unnecessary influence on the present invention, the present embodiment adopts the same type of test solution of different batches to verify the experimental results again, and uses ordinary silica gel G plate as a contrast, The specific operation is as follows:

[0047] A kind of alkalization method of silica gel G plate in thin-layer chromatographic identification of licorice traditional Chinese medicine preparation, comprises the following steps:

[0048] Step 1, the configuration of the alkalization solution: according to the ratio of sodium hydroxide solid: distilled water = 1:100, weigh 10 g of sodium hydroxide solid, add distilled water to dissolve and set the volume to 1000 ml, that is, prepare 1% sodium hydroxide solution;

[0049] Step 2, impregnating the silica gel G plates: put the multiple silica gel G plates to be treated into the container containing the 1%...

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
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a method for alkalizing a silica gel G plate in thin-layer chromatography identification of a licorice traditional Chinese medicine preparation. The method is characterized bycomprising the following steps of 1, the configuration of an alkalizing solution: according to a ratio of sodium hydroxide solid: distilled water = 1:100, weighing xg of sodium hydroxide solid, addingdistilled water to dissolve the sodium hydroxide solid to a constant volume of 100xml, that is, obtaining a 1% sodium hydroxide solution. The method for alkalizing the silica gel G plate in thin-layer chromatography identification of the licorice traditional Chinese medicine preparation impregnates the silica gel G plate with the 1% NaOH solution for 1 minute, naturally dries the silica gel G plate, and activates the silica gel G plate at 105 degrees centigrade for 15 minutes. Compared with the prior art, the silica gel G thin-layer plate impregnation alkalizing method provided in the invention can effectively improve the chromatographic resolution in the licorice thin-layer chromatography identification, saves time cost, is accurate in identification results and easy to observe. Therefore, the method can replace a prefabricated alkaline silica gel G thin-layer plate to be used in the licorice thin-layer chromatography identification of the traditional Chinese medicine preparation.

Description

technical field [0001] The invention belongs to the technical field of medical detection, and in particular relates to an alkalization method of a silica gel G plate in TLC identification of licorice traditional Chinese medicine preparations. Background technique [0002] Licorice has the characteristics of harmonizing urgency, nourishing the lungs, detoxifying, and harmonizing various medicines, so it is often used as a herbal medicine in the prescription of Chinese medicine compound preparations. Therefore, when establishing the quality standards of Chinese medicine compound preparations, it is often used as one of the identification items to control the quality of the preparations . The main components of licorice are flavonoids and saponins, such as: glycyrrhizin and glycyrrhizic acid, which are relatively polar chemical components; therefore, the stationary phase required under the identification item of licorice in the current pharmacopoeia is 1% hydrogen Silica gel G...

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
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G01N30/90
Inventor 陈莉王盛孟楣
Owner FIRST AFFILIATED HOSPITAL OF ANHUI UNIV OF CHINESE MEDICINE