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Method for enriching and detecting aminomercury chloride in cosmetics

A technology of aminomercuric chloride and detection method, which is applied in the field of enrichment and detection of heavy metals in cosmetics, can solve the problems of lack of effective methods, inability to identify and divide various compounds containing mercury, lack of verification methods, etc., and achieve simple detection The effect of the method

Inactive Publication Date: 2002-12-25
SHANXI INST OF COAL CHEM CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Mercury chloride is relatively easy to be detected, while aminomercuric chloride is often missed. The existing atomic absorption mercury method can only give the total mercury, and cannot identify and distinguish various compounds containing mercury such as chlorinated mercury. Mercury, aminomercuric chloride; there is a missing phenomenon in the detection of aminomercuric chloride, and there is still a lack of appropriate verification methods; for cosmetics, especially unknown cosmetics, there is a lack of effective methods for enriching aminomercuric chloride

Method used

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  • Method for enriching and detecting aminomercury chloride in cosmetics
  • Method for enriching and detecting aminomercury chloride in cosmetics
  • Method for enriching and detecting aminomercury chloride in cosmetics

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] (1) Weigh 10g of cosmetics in quantitative filter paper, continuously extract with absolute ethanol, place the extracted residue at 100°C, and blow off the solvent until the residue weighs;

[0028] (2) Continuously extract the above residue with hexane, extract the residue at 100° C., and blow off the solvent until it reaches a constant weight;

[0029] (3) The hexane extraction residue was continuously extracted with tetrahydrofuran, and the insoluble residue was kept at 110° C. until the residue was at a constant weight;

[0030] (4) pulverize the residue extracted by tetrahydrofuran until the particle size is less than 320 mesh;

[0031] (5) Use the D / max-rA X-ray diffraction instrument to scan the sample in the fourth step under the conditions of 40Kv / 30mA, rotating anode CuKa, and Ni filter, and print the spectrum.

[0032] figure 1 is the X-ray spectrum of the sample, figure 2 It is pure sample standard spectrum

[0033] It can be seen from the X-spectrum sp...

Embodiment 2

[0035] (1) Weigh 10g of cosmetics in quantitative filter paper, continuously extract with absolute ethanol, place the extracted residue at 110°C, and blow off the solvent until the residue weighs;

[0036] (2) Continuously extract the above residue with hexane, extract the residue at 90° C., and blow off the solvent until it reaches a constant weight;

[0037] (3) Continuously extract the hexane extraction residue with tetrahydrofuran, and place the residue at 110° C. to dry until the residue has a constant weight;

[0038] (4) pulverize the residue extracted by tetrahydrofuran until the particle size is less than 320 mesh;

[0039] (5) The residue extracted by tetrahydrofuran and potassium bromide are compressed into tablets at a weight ratio of 1: 150-200, and the resolution is Δγ=4cm-1,64 under the condition of Nicolet Magna 550 Fourier infrared spectrometer Scan the sample in step 4 and print the spectrum.

[0040] image 3 is the spectrum of the sample infrared spectru...

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Abstract

A process for enriching and detecting the content of the aminomercury chloride in cosmetics is characterized by that other components in cosmetics are dissolved in alcohol, hexane and tetrahydrofuran, and the residual enriched aminomercury chloride is qualitatively detected by X-ray spectrum and infrared spectrum.

Description

[0001] Field: [0002] The invention belongs to a method for enrichment and detection of heavy metals in cosmetics, in particular to an analysis method capable of enrichment and qualitative and quantitative detection of aminomercuric chloride in cosmetics. Background technique: [0003] In modern life, people attach great importance to the protection and beauty of the face. With the development of this trend, various cosmetics are constantly being developed and poured into the market. Among many cosmetics, "whitening" skin cosmetics are very popular. With the development of such products, aminomercuric chloride has also become a member of the "whitening" skin category. [0004] Aminomercuric chloride was originally a drug for treating skin diseases, but its use as a cosmetic has always been controversial. In order to ensure the health of the people, my country has clearly stipulated the content of total mercury in cosmetics, which mainly includes mercuric chloride and aminome...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/40G01N21/35G01N23/20
Inventor 张昌鸣董庆年王贵香杨建丽刘振宇
Owner SHANXI INST OF COAL CHEM CHINESE ACAD OF SCI
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