CN211318325U - Pretreatment system for measuring ultraviolet absorbent in household product - Google Patents
Pretreatment system for measuring ultraviolet absorbent in household product Download PDFInfo
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- CN211318325U CN211318325U CN201921943772.3U CN201921943772U CN211318325U CN 211318325 U CN211318325 U CN 211318325U CN 201921943772 U CN201921943772 U CN 201921943772U CN 211318325 U CN211318325 U CN 211318325U
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
- G01N30/04—Preparation or injection of sample to be analysed
- G01N30/06—Preparation
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
- G01N30/04—Preparation or injection of sample to be analysed
- G01N30/06—Preparation
- G01N30/08—Preparation using an enricher
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
- G01N30/04—Preparation or injection of sample to be analysed
- G01N30/06—Preparation
- G01N2030/062—Preparation extracting sample from raw material
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Abstract
The utility model discloses a preceding processing system of ultraviolet absorbent in survey house product, including extraction and purification integrative test tube and high-efficient concentrated enrichment device, extraction and purification integrative test tube are including extracting pipe, purification column and the scavenging solution collecting pipe that can dismantle the connection, high-efficient concentrated enrichment device includes the test-tube rack, locates the cavity in the test-tube rack and locates the heating cavity of test-tube rack one side, be equipped with a plurality of test tubes in the cavity, be equipped with snakelike tubular metal resonator and heating module in the heating cavity, nitrogen gas entry is connected to snakelike tubular metal resonator one end, and nitrogen gas pipe is connected to the other end, be equipped with nitrogen gas branch pipe on the nitrogen gas pipe, nitrogen gas branch pipe is leading-in the test tube, the cavity with be linked together between the heating cavity. The pretreatment system is convenient to use, and can greatly shorten the extraction time and improve the extraction efficiency.
Description
Technical Field
The utility model belongs to the technical field of the ultraviolet absorber, concretely relates to survey ultraviolet absorber's pretreatment system in house product.
Background
Industrial products such as plastics, paints, rubbers, synthetic fibers, etc. are exposed to sunlight or strong fluorescence, and self-oxidation reaction is induced by absorption of ultraviolet energy, resulting in degradation of polymers, causing defects in the internal structure of the products, which are manifested by deterioration of the appearance and physical and mechanical properties of the products, which is called a photoaging process. Light stabilizers are known to inhibit the above process. The light stabilizer is added into the high polymer material, and the effect of the light stabilizer on shielding or inhibiting photo-oxidation-reduction or photo-aging is very obvious for preventing the high polymer material from aging and prolonging the service life.
UV-326, UV-350, UV-531, UV-328, UV-327 and UV-1577 are benzotriazole ultraviolet absorbers, which are substances capable of absorbing ultraviolet energy within the wavelength of 290-400nm, then being converted into an excited state, and releasing extra energy in the form of light or heat, and are not changed per se, and can play a role in protection when being added into a product. The benzotriazole ultraviolet light absorber is a product with the largest yield and the largest variety in the ultraviolet light absorbers, and is widely applied to consumer products such as sunscreen cosmetics, plastics, coatings and the like to improve the light resistance of the products. Researches show that the benzotriazole ultraviolet absorbent can be gathered in human bodies, can cause irritation to human skin after long-term contact, has extremely high stability, is not easy to degrade in the environment, and has serious influence on the reproductive capacity of birds and marine organisms.
GB 9685-2016 national food safety Standard for food contact materials and additives for products specifies various benzotriazole ultraviolet absorbers and the limit thereof allowed to be used in food contact materials and products. The detection methods of the benzotriazole ultraviolet absorbers comprise liquid chromatography, gas chromatography-mass spectrometry, liquid chromatography-tandem mass spectrometry and the like, but the detection methods of the benzotriazole ultraviolet absorbers in the coating are less reported, and the detection methods comprise gas chromatography-tandem mass spectrometry and liquid chromatography. In terms of detection methods, detection instruments used for products such as coating products, food contact materials and the like have the same points, but because the matrixes are very different or even completely different, the sample extraction and purification have great difference, and a pretreatment method system which is targeted and meets the requirements of detection equipment needs to be developed.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a preliminary treatment system of ultraviolet absorber in survey house product.
The above object of the present invention can be achieved by the following technical solutions: the utility model provides a survey preceding processing system of ultraviolet absorbent in house product, including extraction and purify integrative test tube and right the extraction and purify the scavenging solution in the integrative test tube and carry out concentrated high-efficient concentrated enrichment device, extraction and purify integrative test tube including can dismantle extraction pipe, purification column and the scavenging solution collecting pipe of connection, high-efficient concentrated enrichment device includes the test-tube rack, locates the cavity in the test-tube rack and the heating cavity of locating test-tube rack one side, be equipped with a plurality of test tubes in the cavity, be equipped with snakelike tubular metal resonator and heating module in the heating cavity, nitrogen gas entry is connected to snakelike tubular metal resonator one end, and nitrogen gas pipe is connected to the other end, be equipped with nitrogen gas branch pipe on the nitrogen gas pipe, nitrogen gas branch pipe channels into in the test tube, the cavity with be linked together between the.
Preferably, the extraction tube is a tube body with one end provided with a conical bottom and the other end provided with a threaded opening, the purification column consists of a tube body, a purification material arranged in the tube body and sieve plates arranged at two ends of the purification material, and two ends of the tube body are provided with threaded openings; the purified liquid collecting pipe is a pipe body with one end provided with a circular bottom and the other end provided with a threaded opening; the extraction tube and the purified liquid collection tube are made of plastic materials without ultraviolet absorbent.
Preferably, the chamber is communicated with the heating chamber through a blowing mechanism.
Compared with the prior art, the utility model has the advantages of as follows:
(1) the utility model discloses extraction and purification integrative test tube can greatly shorten the extraction time and improve extraction efficiency including the extraction pipe, purification column and the scavenging solution collecting pipe that can dismantle the connection, convenient to use.
(2) The utility model discloses well high-efficient concentrated enrichment device is different from traditional water bath heating, metal contact heating mode's nitrogen blowing enrichment device, the utility model discloses a device both can heat nitrogen gas and can heat the sample in the nitrogen blowpipe (being the test tube), and nitrogen gas after the heating and nitrogen blowpipe (being the test tube) heating combined action can improve organic reagent volatilization rate greatly, improve the speed of concentrated enrichment, reduce the nitrogen gas consumption, improve efficiency.
Drawings
FIG. 1 is a schematic view of an extraction and purification integrated tube in a pretreatment system for measuring UV absorbers in household products in example 1, in which FIG. A is a schematic view of an extraction and purification integrated tube, and FIG. B is a schematic view of an extraction and purification integrated tube after detachment;
FIG. 2 is a schematic structural diagram of the high-efficiency concentration and enrichment apparatus in the pretreatment system for measuring ultraviolet absorbers in household products in example 1.
Detailed Description
The present invention will be further described with reference to specific embodiments, but the scope of the invention as claimed is not limited to the following embodiments.
Example 1
As shown in fig. 1-2, the pretreatment system for measuring ultraviolet light absorbers in household products according to the present embodiment includes an integrated extraction and purification tube 1 and a high-efficiency concentration device 2 for concentrating purified liquid in the integrated extraction and purification tube 1 (i.e., the high-efficiency concentration device 2 is used for concentrating purified liquid in the integrated extraction and purification tube 1). Extraction and purify integrative test tube 1 including dismantling the extraction tube 11, purifying column 12 and the scavenging solution collecting pipe 13 of connection (as shown in A picture and B picture in fig. 1), high-efficient concentrated enrichment facility 2 includes test-tube rack 21, locates cavity 22 in the test-tube rack 21 and locates the heating cavity 23 of test-tube rack 21 one side, be equipped with a plurality of test tubes 24 in the cavity 22, be equipped with snakelike tubular metal resonator 25 and heating module 26 in the heating cavity 23, nitrogen gas entry is connected to snakelike tubular metal resonator 25 one end, and nitrogen gas pipe 27 is connected to the other end, be equipped with nitrogen gas branch pipe 28 on the nitrogen gas pipe 27, nitrogen gas branch pipe 28 channels into in the test tube 24, cavity 22 with be linked together between the heating cavity 23.
Specifically, the extraction tube 11 is a tube body with a tapered bottom at one end and a threaded opening at the other end.
The purifying column 12 is composed of a tube body, a purifying material arranged in the tube body and sieve plates arranged at two ends of the purifying material, and threaded openings are arranged at two ends of the tube body.
The purified liquid collecting pipe 13 is a pipe body having a circular bottom at one end and a threaded opening at the other end.
The extraction pipe 11 and the purified liquid collection pipe 13 are made of a plastic material containing no ultraviolet absorber.
Specifically, as shown in fig. 1, the sample extraction and purification integrated test tube 1 in this embodiment is composed of three parts, namely an extraction tube 11, a purification column 12 and a purified liquid collection tube 13. The extraction tube 11 and the purified liquid collecting tube 13 are made of plastic materials without ultraviolet absorbent, the extraction tube 11 adopts a conical bottom design, and the tube orifice is designed as a threaded interface so as to be conveniently connected with the purifying column 12; the purified liquid collecting pipe 13 adopts a round design, and the pipe orifice is designed as a threaded interface so as to be convenient for connecting with the purifying column 12. The extraction column 12 is designed with screw interfaces (threaded openings) at both ends for connecting the extraction tube 11 and the purified liquid collection tube 13. The two ends of the extraction column 12 are provided with sieve plates, sample purification reagents (purification materials) are filled between the two sieve plates, and the purification reagents are fixed through the sieve plates. The purifying reagent in the extraction column 12 comprises Florisil powder, neutral alumina powder, chromatographic silica gel powder, PSA powder and graphitized carbon black adsorbent (GCB) powder which are mixed according to a certain proportion.
Specifically, the high-efficiency concentration and enrichment device 2 in the embodiment is a nitrogen concentration device which provides a heat source through a blast heating method. Different from the nitrogen of traditional water bath heating, metal contact heating mode and blow enrichment facility, the utility model discloses a sample in nitrogen blowpipe (being test tube 24) can not only be heated to the device nitrogen gas but also can be heated. Specifically, nitrogen is heated to a certain temperature through the heating module 26, and then is introduced into a nitrogen blowing pipe (namely the test tube 24) containing a sample extracting solution, so that the heating combined action of the heated nitrogen and the nitrogen blowing pipe (namely the test tube 24) can greatly improve the volatilization speed of the organic reagent, improve the speed of concentration and enrichment, reduce the consumption of the nitrogen and improve the efficiency.
Specifically, the chamber 22 is communicated with the heating chamber 23 through a blowing mechanism 29.
As shown in fig. 2, the high-efficiency concentration and enrichment apparatus 2 in the present embodiment is composed of a test tube rack 21, a chamber 22, a test tube 24, a heating chamber 23, a serpentine metal tube 25, a heating module 26, a nitrogen conduit 27, a nitrogen branch tube 28, and an air blowing mechanism 29.
Wherein the test tube 24 can directly adopt the purified liquid collecting tube 13 in the extraction and purification integrated test tube 1. It is also possible to transfer the purification solution in the purification solution collection tube 13 to the test tube 24.
Nitrogen gas gets into snakelike tubular metal resonator 25 from nitrogen gas entry, heating module 26 control heating temperature, heat the nitrogen gas in the snakelike tubular metal resonator 25, nitrogen gas after the heating passes through nitrogen gas pipe 27 and then gets into nitrogen gas branch pipe 28 and sweeps the concentration to the sample in the test tube 24, set up simultaneously in the blower mechanism 29 of cavity 22 lower right corner position for the test tube 24 provides heat energy in carrying the heat that heating module 26 provided to cavity 22 from the bottom like the blower fan, test-tube rack 21 and cavity 22 are integrative purpose and form a confined space, test tube 24 is fixed on test-tube rack 21 through the hole that test-tube rack 21 reserved. The device has great difference with the nitrogen blowing appearance heating method on the market, can make the volatilization speed of extract faster in the test-tube rack 21, and efficiency is higher.
Snakelike tubular metal resonator 25 adopts snakelike design can increase the residence time of nitrogen gas in the pipe, and nitrogen gas rate of heating is faster, is heated more evenly. The metal is made of stainless steel with good heat conduction effect.
And the heating module 26 is arranged in the cavity 3 and used for providing a heat source, and the outer wall of the cavity can be provided with a temperature adjusting module for controlling the heating temperature.
And the air blowing mechanism 29 is used for conveying the heat energy of the heating module 26 to the cavity of the test tube 24 and providing heat energy for nitrogen blowing. The blower 29 is arranged at the lower end of the wall of the lower right corner of the chamber 22, so that the blower is lower than or parallel to the test tube 24, and heat input from the bottom is ensured. Specifically, the blowing mechanism 29 may be a blowing fan.
The test tube rack 21 and the chamber 22 are integrated to form a closed space to prevent heat loss, the test tube rack 21 is reserved with holes for placing the test tubes 24, and the test tubes 24 are inserted into the holes and fixed on the test tube rack 21.
Claims (3)
1. The utility model provides a survey preceding processing system of ultraviolet absorbent in house product, characterized by is including extraction and purify integrative test tube (1) and right the extract and purify the scavenging solution in integrative test tube (1) and carry out concentrated high-efficient concentrated enrichment facility (2), extraction and purify integrative test tube (1) including can dismantle extraction pipe (11), purification column (12) and scavenging solution collecting pipe (13) of connection, high-efficient concentrated enrichment facility (2) include test-tube rack (21), locate cavity (22) in test-tube rack (21) and locate heating chamber (23) of test-tube rack (21) one side, be equipped with a plurality of test tubes (24) in cavity (22), be equipped with snakelike tubular metal resonator (25) and heating module (26) in heating chamber (23), nitrogen gas entry is connected to snakelike tubular metal (25) one end, other end connecting nitrogen gas pipe (27), and a nitrogen branch pipe (28) is arranged on the nitrogen guide pipe (27), the nitrogen branch pipe (28) is introduced into the test tube (24), and the chamber (22) is communicated with the heating chamber (23).
2. The pretreatment system for measuring ultraviolet absorbers in household products according to claim 1, wherein: the extraction tube (11) is a tube body with one end provided with a conical bottom and the other end provided with a threaded opening, the purification column (12) is composed of a tube body, a purification material arranged in the tube body and sieve plates arranged at two ends of the purification material, and threaded openings are arranged at two ends of the tube body; the purified liquid collecting pipe (13) is a pipe body with a round bottom at one end and a threaded opening at the other end; the extraction pipe (11) and the purified liquid collection pipe (13) are made of plastic materials which do not contain ultraviolet absorbers.
3. The pretreatment system for measuring ultraviolet absorbers in household products according to claim 1, wherein: the chamber (22) is communicated with the heating chamber (23) through a blowing mechanism (29).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910355143.7A CN110057946A (en) | 2019-04-29 | 2019-04-29 | A kind of method and preprocessing system of micrometric measurement family product middle-ultraviolet lamp absorbent |
| CN2019103551437 | 2019-04-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211318325U true CN211318325U (en) | 2020-08-21 |
Family
ID=67321563
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910355143.7A Withdrawn CN110057946A (en) | 2019-04-29 | 2019-04-29 | A kind of method and preprocessing system of micrometric measurement family product middle-ultraviolet lamp absorbent |
| CN201921943772.3U Active CN211318325U (en) | 2019-04-29 | 2019-11-12 | Pretreatment system for measuring ultraviolet absorbent in household product |
| CN201911100339.8A Active CN110658291B (en) | 2019-04-29 | 2019-11-12 | Method for precisely measuring ultraviolet absorbent in household product and pretreatment system |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910355143.7A Withdrawn CN110057946A (en) | 2019-04-29 | 2019-04-29 | A kind of method and preprocessing system of micrometric measurement family product middle-ultraviolet lamp absorbent |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911100339.8A Active CN110658291B (en) | 2019-04-29 | 2019-11-12 | Method for precisely measuring ultraviolet absorbent in household product and pretreatment system |
Country Status (1)
| Country | Link |
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| CN (3) | CN110057946A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110057946A (en) * | 2019-04-29 | 2019-07-26 | 广东产品质量监督检验研究院（国家质量技术监督局广州电气安全检验所、广东省试验认证研究院、华安实验室） | A kind of method and preprocessing system of micrometric measurement family product middle-ultraviolet lamp absorbent |
| CN113341015B (en) * | 2021-06-04 | 2023-09-22 | 国家烟草质量监督检验中心 | Method for determining triazole fungicide in plant-derived food |
| CN113295801B (en) * | 2021-06-04 | 2023-04-25 | 国家烟草质量监督检验中心 | Method for determining fipronil in plant-derived food |
| CN114425178A (en) * | 2021-12-27 | 2022-05-03 | 桐庐雷泰生物科技有限公司 | Capsaicin purification device |
| CN115350502A (en) * | 2022-08-16 | 2022-11-18 | 北京市农林科学院 | Method for rapidly extracting ultraviolet absorbent in degradable film |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203772630U (en) * | 2013-11-07 | 2014-08-13 | 六角体科技（天津）有限公司 | Sample cup for pretreatment all-in-one machine |
| CN204255737U (en) * | 2014-12-10 | 2015-04-08 | 成都雅源科技有限公司 | A kind of Nitrogen evaporator with preheating system |
| CN110057946A (en) * | 2019-04-29 | 2019-07-26 | 广东产品质量监督检验研究院（国家质量技术监督局广州电气安全检验所、广东省试验认证研究院、华安实验室） | A kind of method and preprocessing system of micrometric measurement family product middle-ultraviolet lamp absorbent |
-
2019
- 2019-04-29 CN CN201910355143.7A patent/CN110057946A/en not_active Withdrawn
- 2019-11-12 CN CN201921943772.3U patent/CN211318325U/en active Active
- 2019-11-12 CN CN201911100339.8A patent/CN110658291B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN110057946A (en) | 2019-07-26 |
| CN110658291B (en) | 2022-11-15 |
| CN110658291A (en) | 2020-01-07 |
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