CN104198477A - Rapid detection kit for mercury in cosmetics and detection method - Google Patents
Rapid detection kit for mercury in cosmetics and detection method Download PDFInfo
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- CN104198477A CN104198477A CN201410404006.5A CN201410404006A CN104198477A CN 104198477 A CN104198477 A CN 104198477A CN 201410404006 A CN201410404006 A CN 201410404006A CN 104198477 A CN104198477 A CN 104198477A
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Abstract
The invention relates to a rapid detection kit for mercury in cosmetics. The kit is prepared from the following components: 5-10ml of a surface active agent, 8-10ml of purified water, 6-10ml of acid solution, 5-10ml of alkaline solution, 5-10ml of sulfide ion reagent and 5-10ml of iodide ion reagent. When the rapid detection kit is used for detection, whether a sample contains mercury or not can be judged according to the characteristic color development reaction of the sample and the alkaline solution, the sulfide ion reagent and the iodide ion reagent, the detection process is simple and rapid, the end point can be judged easily, the accuracy of the result can be improved, the false positive result is reduced, and the kit has low requirements for operators and detection equipment and can meet the requirement of a cosmetic detection department for the random checking of large samples of cosmetics.
Description
Technical field
The invention belongs to cosmetics detection field, be specifically related to quick detection kit and the detection method of Mercury In Cosmetics.
Background technology
Mercury is a kind of poisonous heavy metal, human body is had to harm larger, not only can cause localised skin pigmentation, and cholesteroderma deepens, and prolonged application also can produce more serious damage to human endocrine and nervous system.Heavy metal Hg can make melanin go down in a short time, reaches significant whitening effect, can make skin gloss saturating time simultaneously, pore is careful, and spot acne disappears, in recent years, many illegal enterprises of China are illegally added into it in cosmetics without authorization, and human health has been formed to great threat.In recent years, the detection of Mercury In Cosmetics progressively causes the attention of cosmetics supervision department of China, relevant sampling result demonstration, and China has major part cosmetics to add mercury compound, and part content can reach 0.5%-2.5%.
At present, China's " cosmetics health specification " clearly regulation mercury be the banned substance in cosmetics, wherein also specify that the mercury being caused by cosmetics impurity or other reasons must not exceed 1mg/kg.At present, in China's " cosmetics health specification ", the detection method of regulation mercury is cold-vapour atomic absorption method, atom fluorescent luminosity method etc., these detection method sample pre-treatments complexity, and for up to 2-5h, in sample pretreatment process, can produce a large amount of oxynitrides, ring mirror and testing staff are all brought to harm.For this reason, the invention provides a kind of kit, adopt this kit to carry out the detection of Mercury In Cosmetics, simple to operate, detect rapidly, can meet the large sample selective examination work of cosmetics supervision department to cosmetics.
Summary of the invention
For above-mentioned the deficiencies in the prior art, the invention provides a kind of quick detection kit and detection method of Mercury In Cosmetics.
Technical scheme of the present invention is as follows:
A quick detection kit for Mercury In Cosmetics, comprises following component:
Preferably, described surfactant is selected from one or more in polysorbas20, polysorbate40.
Preferably, the volume ratio of described polysorbas20, polysorbate40 is (26): (15).
Preferably, described acid solution is selected from one or more in nitric acid or hydrochloric acid, and described concentration of nitric acid is 0.30.8mol/L, and described concentration of hydrochloric acid is 1.52.0mol/L.
Preferably, described aqueous slkali is sodium hydroxide solution, and concentration is 25mol/L.
Preferably, described sulphion reagent is thioacetic acid amine aqueous solution, and concentration is 0.3-0.6mol/L.
Preferably, described iodide ion reagent is potassium iodide or sodium iodide aqueous solution, and volumetric concentration is 10-20%.
Adopt kit as above to detect a method for Mercury In Cosmetics, comprise the following steps:
(1) get solid or semi-solid sample 0.5-2g or fluid sample 2-5ml, insert in test tube, add purified water 2-5ml to stir, hydrophobicity sample first adds surfactant 2-5ml, then adds purified water 2-5ml to stir, make sample solution to be measured, add 1 acid solution, insert respectively in the detector tube of three 3-5ml, obtain first part of sample, second part of sample, the 3rd part of sample;
In (2) first parts of samples, add 1 aqueous slkali, observing response;
In (3) second parts of samples, add 1 sulphion reagent, observing response;
In (4) the 3rd parts of samples, add 1 iodide ion reagent, observing response;
In step (2) there is yellowish-brown in reaction solution; There is grey, black in reaction solution in step (3), and in step (4), salmon pink precipitation appears in reaction solution, judges and in sample, contain mercury.
The present invention compared with prior art, beneficial effect be embodied in following some:
Mercury compound may NaOH etc. aqueous slkali react, produce yellowish-brown, mercury can react with sulphion, occurs grey, black, and mercury can react with iodide ion, there is salmon pink precipitation, the present invention, according to the characteristic chromogenic reaction of above-mentioned mercury, carries out qualitative detection to the mercury in cosmetics, easy and simple to handle, terminal easily judges, less demanding to operating personnel and checkout equipment.
2. the present invention reacts in judgement sample whether contain mercury by three kinds of characteristics of mercury, has improved the accuracy of result, has avoided false-positive appearance.
3. the present invention is carrying out before chromogenic reaction, first adopt acid solution to infiltrate to sample aqueous solution, can make mercury ion move to sample surfaces, accelerated the reaction of mercury aqueous slkali, iodide ion and sulphion in subsequent operation, Reaction time shorten, has also improved being quick on the draw property.
Embodiment
Embodiment 1
A quick detection kit for Mercury In Cosmetics, comprises following component:
Described concentration of nitric acid is 0.3mol/L.
Described concentration of sodium hydroxide solution is 2mol/L.
Described thioacetic acid amine aqueous solution concentration is 0.3mol/L.
Described liquor kalii iodide volumetric concentration is 10%.
Adopt kit as above to detect a method for Mercury In Cosmetics, comprise the following steps:
(1) get skin whitener 0.5, insert in test tube, add purified water 2ml to stir, make sample solution to be measured, add 1 nitric acid, insert respectively in the detector tube of three 3ml, obtain first part of sample, second part of sample, the 3rd part of sample;
In (2) first parts of samples, add 1 aqueous slkali, observing response;
In (3) second parts of samples, add 1 sulphion reagent, observing response;
In (4) the 3rd parts of samples, add 1 iodide ion reagent, observing response;
In step (2) there is yellowish-brown in reaction solution; In step (3) there is grey in reaction solution, and in step (4), salmon pink precipitation appears in reaction solution, judges in this skin whitener and contains mercury.
Embodiment 2
A quick detection kit for Mercury In Cosmetics, comprises following component:
Described concentration of hydrochloric acid is 1.5mol/L.
Described concentration of sodium hydroxide solution is 5mol/L.
Described thioacetic acid amine aqueous solution concentration is 0.6mol/L.
Described IodineSodium Solution volumetric concentration is 20%.
Adopt kit as above to detect a method for Mercury In Cosmetics, comprise the following steps:
(1) get whitening water 2ml, insert in test tube, add purified water 2-5ml to stir, make sample solution to be measured, add 1 hydrochloric acid, insert respectively in the detector tube of three 5ml, obtain first part of sample, second part of sample, the 3rd part of sample;
In (2) first parts of samples, add 1 aqueous slkali, observing response;
In (3) second parts of samples, add 1 sulphion reagent, observing response;
In (4) the 3rd parts of samples, add 1 iodide ion reagent, observing response;
In step (2) there is yellowish-brown in reaction solution; In step (3) there is black in reaction solution, and in step (4), salmon pink precipitation appears in reaction solution, judges in this whitening water and contains mercury.
Embodiment 3
A quick detection kit for Mercury In Cosmetics, comprises following component:
Described surfactant is the mixed liquor of polysorbas20, polysorbate40, and described polysorbas20, the volume ratio of polysorbate40 are 2: 1.
Described concentration of nitric acid is 0.8mol/L.
Described concentration of sodium hydroxide solution is 3.5mol/L.
Described thioacetic acid amine aqueous solution concentration is 0.5mol/L.
The volumetric concentration of described liquor kalii iodide is 15%.
Adopt kit as above to detect a method for Mercury In Cosmetics, comprise the following steps:
(1) get early frost 1g, add surfactant 2ml, then add purified water 3ml to stir, make sample solution to be measured, add 1 nitric acid, insert respectively in the detector tube of three 3-5ml, obtain first part of sample, second part of sample, the 3rd part of sample;
In (2) first parts of samples, add 1 aqueous slkali, observing response;
In (3) second parts of samples, add 1 sulphion reagent, observing response;
In (4) the 3rd parts of samples, add 1 iodide ion reagent, observing response;
In step (2) there is not yellowish-brown in reaction solution; In step (3) there is not grey, black in reaction solution, and in step (4), salmon pink precipitation does not appear in reaction solution, judges in sample and does not contain mercury.
Above-described embodiment is only the preferred embodiment of the present invention, and should not be construed as limitation of the invention, and those skilled in the art are according to announcement of the present invention, and not departing from improvement and the amendment that category of the present invention makes all should be within protection scope of the present invention.
Claims (9)
1. a quick detection kit for Mercury In Cosmetics, is characterized in that, comprises following component:
2. the quick detection kit of Mercury In Cosmetics according to claim 1, is characterized in that, described surfactant is selected from one or more in polysorbas20, polysorbate40.
3. the quick detection kit of Mercury In Cosmetics according to claim 2, is characterized in that, described polysorbas20, the volume ratio of polysorbate40 are (2-6): (1-5).
4. the quick detection kit of Mercury In Cosmetics according to claim 1, is characterized in that, described acid solution is selected from one or more in nitric acid or hydrochloric acid, and described concentration of nitric acid is 0.3-0.8mol/L, and described concentration of hydrochloric acid is 1.5-2.0mol/L.
5. the quick detection kit of Mercury In Cosmetics according to claim 1, is characterized in that, described aqueous slkali is sodium hydroxide solution, and concentration is 2-5mol/L.
6. the quick detection kit of Mercury In Cosmetics according to claim 1, is characterized in that, described sulphion reagent is thioacetic acid amine aqueous solution, and concentration is 0.3-0.6mol/L.
7. the quick detection kit of Mercury In Cosmetics according to claim 1, is characterized in that, described iodide ion reagent is potassium iodide or sodium iodide aqueous solution, and volumetric concentration is 10-20%.
8. adopt kit as claimed in claim 17 to detect a method for Mercury In Cosmetics, it is characterized in that, comprise the following steps:
(1) get solid or semi-solid sample 0.5-2g or fluid sample 2-5ml, insert in test tube, add purified water 2-5ml to stir, hydrophobicity sample first adds surfactant 2-5ml, then adds purified water 2-5ml to stir, make sample solution to be measured, add 1 acid solution, insert respectively in the detector tube of three 3-5ml, obtain first part of sample, second part of sample, the 3rd part of sample;
In (2) first parts of samples, add 1 aqueous slkali, observing response;
In (3) second parts of samples, add 1 sulphion reagent, observing response;
In (4) the 3rd parts of samples, add 1 iodide ion reagent, observing response.
9. the method for detection Mercury In Cosmetics according to claim 8, is characterized in that, in step (2), yellowish-brown appears in reaction solution; There is grey, black in reaction solution in step (3), and in step (4), salmon pink precipitation appears in reaction solution, judges and in sample, contain mercury.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410404006.5A CN104198477A (en) | 2014-08-16 | 2014-08-16 | Rapid detection kit for mercury in cosmetics and detection method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410404006.5A CN104198477A (en) | 2014-08-16 | 2014-08-16 | Rapid detection kit for mercury in cosmetics and detection method |
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| CN201410404006.5A Pending CN104198477A (en) | 2014-08-16 | 2014-08-16 | Rapid detection kit for mercury in cosmetics and detection method |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101782522A (en) * | 2010-02-09 | 2010-07-21 | 广东省疾病预防控制中心 | Quick detection method of mercury in cosmetics and reagent kit thereof |
| CN103616378A (en) * | 2013-11-28 | 2014-03-05 | 中山鼎晟生物科技有限公司 | Method for detecting mercury in cosmetics |
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2014
- 2014-08-16 CN CN201410404006.5A patent/CN104198477A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101782522A (en) * | 2010-02-09 | 2010-07-21 | 广东省疾病预防控制中心 | Quick detection method of mercury in cosmetics and reagent kit thereof |
| CN103616378A (en) * | 2013-11-28 | 2014-03-05 | 中山鼎晟生物科技有限公司 | Method for detecting mercury in cosmetics |
Non-Patent Citations (1)
| Title |
|---|
| 北京医学院药学系药化教研组编: "《中等医药学校试用教科书 药物化学》", 30 June 1963 * |
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