Rapid detection kit and detection method of hydroquinone in cosmetics

A technology for detection kits and cosmetics, which is used in material analysis by observing the influence of chemical indicators, and analysis by chemical reaction of materials, etc., can solve the problems of high experimental cost, long experimental time, and complicated operation process. , to achieve the effect of high sensitivity, reduced detection cost and simple operation

Inactive Publication Date: 2016-01-13
GUANGZHOU ANNUO FOOD SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

High-performance liquid chromatography and liquid chromatography-mass chromatography are the most advanced modern analysis methods, which have the advantages of high separation efficiency and high sensitivity. Using the standard control method, the content of hydroquinone in the sample can be detected very accurately, but these Professio

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Take 1g of a certain brand of whitening and flawless essence cream into the reaction bottle, add 1ml of pure water, shake well to be tested, add dropwise 250 microliters of 0.5% sodium hydroxide solution into the reaction bottle, shake well, observe after 2 minutes , the content of the reaction bottle is brown, then it can be judged that the whitening and flawless essence cream of this embodiment contains hydroquinone components.

Embodiment 2

[0032] Take 1ml of whitening and freckle removing cream of a certain brand and add it to the reaction bottle, add 1ml of pure water, shake well to be tested, add dropwise 150 microliters of 2% sodium hydroxide solution into the reaction bottle, shake well, observe after 5 minutes, the reaction If the content of the bottle is brownish black, it can be judged that the whitening and freckle removing cream of this embodiment contains hydroquinone.

Embodiment 3

[0034] Take 1ml of a certain brand of freckle and whitening cream and add it to the reaction bottle, add 1ml of ethanol, shake well to be tested, add dropwise 250 microliters of 2.5% sodium hydroxide solution into the reaction bottle, shake well, observe after 2-3 minutes , the content of the reaction bottle is brownish yellow, then it can be judged that the freckle-removing and whitening cream of this embodiment contains hydroquinone components.

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PUM

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Abstract

The invention provides a rapid detection kit and a detection method of hydroquinone in cosmetics. The rapid detection kit comprises a solvent reagent and an alkaline reagent, and experiment expendables such as reaction bottles, pipettes, and sample spoons; wherein the solvent reagent is purified water, or one or a mixture of a plurality of organic solvents selected from ethyl alcohol, methyl alcohol, ether, and dichloromethane; the alkaline reagent is an alkaline ionic solution or a solid alkali; the alkaline ionic solution is one selected from sodium hydroxide, potassium hydroxide, sodium hydride, or aqueous solutions of sodium hydroxide, potassium hydroxide, and sodium hydride; and preferably the concentration of the alkaline ionic solution ranges from 0.5 to 5%. The rapid detection method is mainly used for rapidly detecting that whether hydroquinone is illegally added into cosmetics which are used for whitening and removing freckles; operation of the rapid detection method is simple and convenient; no precise or large-scale equipment is needed; detection time is short; detection can be finished in 2 to 5min; judgment can be made only via direct observation of color change; and detection steps are simplified greatly.

Description

technical field [0001] The invention relates to a rapid detection kit for hydroquinone in cosmetics and a detection method thereof. Background technique [0002] At present, with the improvement of domestic living standards, women's demand for beauty is increasing, and various whitening products are emerging in an endless stream. It is also very common to add various whitening functional ingredients in cosmetics, and hydroquinone is one of them. Although the treatment pigment increases There are many chemical components in hydroquinone, but hydroquinone is cheap and easy to get, and it is sold in various chemical reagent stores, which makes it very common to illegally add it to cosmetics. In my country's 2014 random inspection of online cosmetics, most of the whitening and freckle-removing cosmetics have detected the chemical ingredients of hydroquinone, phenol or betamethasone. [0003] Hydroquinone, also known as hydroquinone, is a compound formed by replacing the two par...

Claims

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Application Information

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IPC IPC(8): G01N21/78
Inventor 杨鹏博马丽张陇清
Owner GUANGZHOU ANNUO FOOD SCI & TECH CO LTD
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