Test paper for quickly detecting phenothalin, detection kit thereof and detection method thereof
A detection kit and detection test paper technology, which is applied in the direction of material analysis by observing the influence on chemical indicators, and analysis by chemical reaction of materials, etc. It is difficult for supervisors to grasp the operation and other problems, so as to improve the efficiency of supervision and inspection, easy and convenient operation, and standardize the market order.
Inactive Publication Date: 2010-06-02
广东省汕头市药品检验所
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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.
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Method used
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Embodiment 1
[0018] The preparation method of the detection test paper in this embodiment is as follows: take a neutral filter paper, soak it in a NaOH solution with a pH of 11 for 0.5 minutes, take it out, and dry it. Among them, the concentration of NaOH is 3% by mass volume percentage.
Embodiment 2
[0020] The preparation method of the test paper in this embodiment is as follows: take neutral filter paper and place it in Na with pH 12 2 CO 3 Soak in the solution for 1 minute, take it out, and air dry. Among them, Na 2 CO 3 The mass volume percentage concentration of 10%.
Embodiment 3
[0022] The preparation method of the detection test paper in this embodiment is as follows: take a neutral filter paper, soak it in a KOH solution with a pH of 12 for 0.7 minutes, take it out, and dry it. Among them, the mass volume percentage concentration of KOH is 8%.
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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...
Claims
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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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