Rapid detection kit and detection method of hydroquinone in cosmetics

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...

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 Professional testing equipment is required, the operation process is relatively complicated, the experiment time is long, the experiment cost is high, and it is a great test for the patience of on-site inspectors. Therefore, it is necessary to develop a rapid detection method for hydroquinone in cosmetics. Reagent kit and detection method thereof