Test paper for quickly detecting phenothalin, detection kit thereof and detection method thereof

Abstract

The invention provides a method for preparing a test paper for quickly detecting phenothalin, a detection kit and a detection method. The test paper is prepared by soaking neutral filter paper in alkaline solution at a pH value of 11 to 12, taking the filter paper out and drying the filter paper. The alkaline solution may be solution of NaOH, Na2CO3 or KOH. The test paper prepared by the method is assembled with ethanol solution to form the detection kit. The method for detecting phenothalin by using the test paper for detection comprises: adding a test product in the ethanol solution, shaking the ethanol solution and standing the ethanol solution; soaking the test paper for detection in the processed solution of the test product; and taking the test paper for detection out of the solution, wherein if the test paper shows a rose color, that the test product contains phenothalin can be determined, and if the test paper does not show a rose color, that the test product does not contain phenothalin can be determined. The test paper, the related kit and the method for quickly detecting phenothalin can quickly and accurately detect phenothalin, particularly can detect whether phenothalin is illegally added in weight-reducing Chinese patent medicaments, health-care foods and other foods in situ, are simple and convenient in operation, suitable for in-situ detection and can realize semi-quantitative detection.

Description

Technical field [0001] The invention relates to a detection technology of phenolphthalein, in particular to a rapid detection test paper for phenolphthalein, a detection kit and a detection method thereof. Background technique [0002] With the improvement of living standards, people realize that obesity seriously affects their health, and at the same time realize that using western medicine to lose weight quickly will bring serious side effects. However, it takes a long time for the weight loss effect of traditional Chinese medicine to show up, and it is difficult to arouse people's desire to buy. Therefore, in the face of huge market and profits, some unscrupulous manufacturers take advantage of consumers’ eagerness to lose weight and the misunderstanding of the non-toxic side effects of traditional Chinese medicines, and add a large number of chemical weight loss prohibited by national laws and regulations to weight-loss Chinese patent medicines, health foods and foods. Drugs...

AI Technical Summary

Problems solved by technology

Although high-performance liquid chromatography, thin-layer chromatography, and liquid chromatography-mass spectrometry can accurately identify and quantify phenolphthalein in traditional Chinese medicines, these methods have long detection cycles and cumbersome processes, and are not suitable for on-site batch screening.

In addition, chromatographic detection and analysis instruments are expensive, bulky, and the cost of detection and analysis is high. Operators are required to have a high level of professional skills, and it is difficult for grassroots drug supervisors to master their operations. They are not suitable for screening large quantities of drugs

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