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Quick screening method of phenolphthalein doped in Chinese patent medicine, health products and food for losing weight

A technology of Chinese patent medicines and health care products, which is applied in the direction of material analysis by observing the influence of chemical indicators, and analysis by making materials undergo chemical reactions. It can solve problems such as difficult to distinguish, and achieve short detection time, simple operation, low cost effect

Inactive Publication Date: 2010-02-17
广东省汕头市药品检验所
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When anthraquinones meet with alkali, the solution will appear dark red, which is similar to the color of phenolphthalein when met with alkali, so it is difficult to distinguish

Method used

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  • Quick screening method of phenolphthalein doped in Chinese patent medicine, health products and food for losing weight
  • Quick screening method of phenolphthalein doped in Chinese patent medicine, health products and food for losing weight

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0062] The detection kit consists of:

[0063] Reagent A: ethanol solution with a volume concentration of 95%;

[0064] Reagent B: aqueous sodium hydroxide solution with a concentration of 0.5 mol / L.

[0065] The kit also includes 20 filter tips and 20 syringes.

[0066] Take 1 tablet of Qingshen slimming tablet, crush it, add reagent A equivalent to 3 times the mass of Qingshen slimming tablet, shake to dissolve, let stand, filter, and keep the filtrate;

[0067] Take 2ml of reagent B, add 2-5 drops of the filtrate dropwise, shake well, and the color does not change, indicating that the sample does not contain phenolphthalein, and the result is consistent with the reality.

Embodiment 2

[0069] The detection kit consists of:

[0070] Reagent A: ethanol solution with a volume concentration of 90%;

[0071] Reagent B: aqueous sodium hydroxide solution with a concentration of 0.47 mol / L.

[0072] The kit also includes 10 filter tips and 10 syringes.

[0073] Take 1 Luting Slimming Capsule, mix its contents with 50 μg of phenolphthalein, add reagent A equivalent to 3 times the total mass of Luting Slimming Capsule and phenolphthalein, shake to dissolve, let stand, filter, and keep the filtrate;

[0074] Take 2ml of reagent B, add 2-5 drops of the filtrate dropwise, shake well, the color immediately turns rose red, indicating that the sample contains phenolphthalein, and the result is consistent with the actual situation.

Embodiment 3

[0076] The detection kit consists of:

[0077] Reagent A: ethanol solution with a volume concentration of 93%;

[0078] Reagent B: aqueous sodium hydroxide solution with a concentration of 0.53 mol / L.

[0079] The kit also includes 50 filter tips and 50 syringes.

[0080] Take 1 capsule of Miaodantang Natural Slimming Ten Degree Brand Xiumei Capsule, mix its contents with 18 μg of phenolphthalein, add reagent A equivalent to 3 times the total mass of Miaodantang Natural Slimming Ten Degree Brand Xiumei Capsule and phenolphthalein, shake Dissolve, stand still, filter, retain the filtrate;

[0081] Take 2ml of reagent B, add 2-5 drops of the filtrate dropwise, shake well, the color immediately turns rose red, indicating that the sample contains phenolphthalein, and the result is consistent with the actual situation.

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Abstract

The invention relates to a quick screening method of phenolphthalein doped in Chinese patent medicine, health-care products and food for losing weight. The quick screen method comprises the followingsteps: (1) preparing sodium hydroxide solution with the concentration of 0.47mol / L to 0.53mol / L; (2) dissolving a sample by ethanol solution with the volume concentration of 90% to 96%, filtering andtaking filtrate; and (3) dropping 2 to 5 drops of filtrate into the sodium hydroxide solution and judging whether the phenolphthalein is added to the sample or not according to the change of colors. The invention also discloses a special reagent kit for implementing the screening method, comprising the ethanol solution with the volume concentration of 90% to 96% and the sodium hydroxide solution with the concentration of 0.47mol / L to 0.53mol / L. The detecting method is suitable for quickly screening whether the phenolphthalein is doped in the Chinese patent medicine, the health-care products and the food or not on site for basic medicine supervision personnel and has the advantages of low cost, simple operation, high sensitivity and the like.

Description

technical field [0001] The invention relates to the detection of non-biological materials by using a chemical indicator, in particular to a detection method of phenolphthalein. Background technique [0002] According to the World Health Organization, obesity has become the most common chronic disease affecting adults worldwide. European and American medical and sociologists believe that "obesity, AIDS, and drug abuse are the three major social problems today." Preliminary statistics show that more than 250 million people in the world suffer from obesity. What's more serious is that obesity is closely related to mortality. It is estimated that there are currently about 70 million people in the country who need to lose weight. In 2004, the "National Weight Loss Forum" reported that the obesity rate in Beijing was as high as 45%. Slimming products have been accepted and used by more and more obese and beauty-loving people. [0003] With the improvement of living standards, p...

Claims

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Application Information

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IPC IPC(8): G01N21/78
Inventor 黄诺嘉杨文红黄奕滨
Owner 广东省汕头市药品检验所
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