CN110333312A - The device and method of organotin in a kind of extraction plastics - Google Patents
The device and method of organotin in a kind of extraction plastics Download PDFInfo
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- CN110333312A CN110333312A CN201910742668.6A CN201910742668A CN110333312A CN 110333312 A CN110333312 A CN 110333312A CN 201910742668 A CN201910742668 A CN 201910742668A CN 110333312 A CN110333312 A CN 110333312A
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- 229920003023 plastic Polymers 0.000 title claims abstract description 28
- 239000004033 plastic Substances 0.000 title claims abstract description 28
- 238000000605 extraction Methods 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 title claims abstract description 15
- 239000007788 liquid Substances 0.000 claims abstract description 53
- 239000002699 waste material Substances 0.000 claims abstract description 42
- 238000002137 ultrasound extraction Methods 0.000 claims abstract description 40
- 238000001035 drying Methods 0.000 claims abstract description 13
- 230000000149 penetrating effect Effects 0.000 claims description 12
- 229910021642 ultra pure water Inorganic materials 0.000 claims description 12
- 239000012498 ultrapure water Substances 0.000 claims description 12
- 238000010828 elution Methods 0.000 claims description 9
- 238000005516 engineering process Methods 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 239000000428 dust Substances 0.000 claims description 8
- 238000002604 ultrasonography Methods 0.000 claims description 8
- 238000009826 distribution Methods 0.000 claims description 6
- 239000007921 spray Substances 0.000 claims description 2
- 238000002386 leaching Methods 0.000 claims 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 5
- 238000001514 detection method Methods 0.000 abstract description 3
- 238000004458 analytical method Methods 0.000 abstract description 2
- 238000002203 pretreatment Methods 0.000 abstract description 2
- 239000000047 product Substances 0.000 description 18
- -1 polyethylene Polymers 0.000 description 7
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical group OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 6
- 239000003381 stabilizer Substances 0.000 description 6
- 239000004743 Polypropylene Substances 0.000 description 5
- 229920001155 polypropylene Polymers 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 239000004698 Polyethylene Substances 0.000 description 4
- KWTSZCJMWHGPOS-UHFFFAOYSA-M chloro(trimethyl)stannane Chemical compound C[Sn](C)(C)Cl KWTSZCJMWHGPOS-UHFFFAOYSA-M 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 229920000573 polyethylene Polymers 0.000 description 4
- 229920000915 polyvinyl chloride Polymers 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 230000018109 developmental process Effects 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000004800 polyvinyl chloride Substances 0.000 description 3
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 2
- 125000000217 alkyl group Chemical group 0.000 description 2
- 230000003373 anti-fouling effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 238000004949 mass spectrometry Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 229920002554 vinyl polymer Polymers 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- 238000010811 Ultra-Performance Liquid Chromatography-Tandem Mass Spectrometry Methods 0.000 description 1
- QWJYDTCSUDMGSU-UHFFFAOYSA-N [Sn].[C] Chemical compound [Sn].[C] QWJYDTCSUDMGSU-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 238000003556 assay Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000005844 autocatalytic reaction Methods 0.000 description 1
- 239000003899 bactericide agent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 239000000645 desinfectant Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 239000012760 heat stabilizer Substances 0.000 description 1
- 230000003054 hormonal effect Effects 0.000 description 1
- 229910000041 hydrogen chloride Inorganic materials 0.000 description 1
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 description 1
- 239000002917 insecticide Substances 0.000 description 1
- 238000004811 liquid chromatography Methods 0.000 description 1
- 238000001294 liquid chromatography-tandem mass spectrometry Methods 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 238000005374 membrane filtration Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000002574 poison Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000028327 secretion Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D11/00—Solvent extraction
- B01D11/02—Solvent extraction of solids
- B01D11/0261—Solvent extraction of solids comprising vibrating mechanisms, e.g. mechanical, acoustical
- B01D11/0265—Applying ultrasound
-
- 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
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Acoustics & Sound (AREA)
- Health & Medical Sciences (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a kind of device and methods of organotin in extraction plastics, the device includes consumption sample cabinet, sample room, mechanical tweezers, elution-ultrasonic extraction all-in-one machine, finished room, waste liquid chamber, drying air fan and air exhauster, consumption sample cabinet is connect by liquid pump with elution-ultrasonic extraction all-in-one machine, mechanical tweezers are set between sample room and elution-ultrasonic extraction all-in-one machine, and elution-ultrasonic extraction all-in-one machine is separately connected by liquid pump and finished room and waste liquid chamber；The drying air fan is sequentially communicated elution-ultrasonic extraction all-in-one machine and air exhauster by pipeline.The device that the present invention uses can handle plastic sample in bulk, reduce the pre-treatment time for handling a large amount of samples, promote the analysis detection efficiency of organotin.The method that the present invention uses can extract rapidly organotin, and the waste of generation is few, and consumptive material is few.The present invention relates to technical field of environment protection equipment.
Description
Technical field
The present invention relates to technical field of environment protection equipment, in particular to the device and method of organotin in a kind of extraction plastics.
Background technique
The synthesis of organo-tin compound can trace back to 1852, but until Rocheshkow successfully develops disproportionated reaction
Afterwards, just technical difficulty is solved for the development of organo-tin compound.Organo-tin compound is as plastics industry at the beginning
Stabilizer and catalyst use, by the development of over half a century, organo-tin compound is widely used work at present
The industries such as industry, fishery, traffic, health are mainly used as stabilizer for plastics, anti-fouling ship paint, industrial bactericide, insecticide, doctor
With disinfectant, surface treating agent for glass etc..In the molecular structure of organo-tin compound, at least contain a tin carbon key (Sn-
C), chemical general formula can be expressed as RnSnX4-n, (n=1~4), wherein R is alkyl, alkyl or aromatic radical, and X is inorganic or has
Machine acid group, oxygen or halogen etc..In past half a century, since organotin is as plastic heat stabilizer, marine antifouling
Coating is widely used, and has been had resulted in the typical contamination in waters in global range, has been more toxic, and is had in interference organism
The effects of hormonal synthesis, secretion, conveying, and then the vital movements such as development, growth, behavior or reproduction for influencing organism,
It is determined as important staying quality poison material (PTS) by international community, the numerous and confused statute restrictions organotin in countries in the world
It uses.
Summary of the invention
It is an object of the invention to overcome the deficiencies of existing technologies and insufficient, a kind of effectively extraction plastic sheet-like sample is provided
The device of organotin in product.
It is another object of the present invention to provide a kind of extracting process of organotin in plastics.
The purpose of the present invention can be achieved through the following technical solutions: a kind of device extracting organotin in plastics, including
Consume sample cabinet, sample room, mechanical tweezers, elution-ultrasonic extraction all-in-one machine, finished room, waste liquid chamber, drying air fan and exhaust
Blower, consumption sample cabinet are connect by liquid pump with elution-ultrasonic extraction all-in-one machine, and mechanical tweezers are set to sample room and elution-
Between ultrasonic extraction all-in-one machine, elution-ultrasonic extraction all-in-one machine is separately connected by liquid pump and finished room and waste liquid chamber；It is described dry
Dry blower and pipeline is sequentially communicated elution-ultrasonic extraction all-in-one machine and air exhauster.
Ultrasonic device is installed in elution-ultrasonic extraction all-in-one machine as a preferred technical solution,.Elution-ultrasonic extraction
Elution head, water inlet line, waste pipe and finished product pipeline, water inlet line connection consumption sample cabinet, waste pipe are equipped in all-in-one machine
Road is connect by liquid pump with waste liquid chamber, and finished product pipeline is connect by liquid pump with finished room.
Sample room includes multiple sample cells as a preferred technical solution, and concentric circles distribution is presented in sample cell.
The finished room includes multiple pan tanks as a preferred technical solution, and concentric circles distribution is presented in pan tank.It is described
The external waste liquid pool of finished room.
It is equipped in the consumption sample cabinet as a preferred technical solution, and loads ultrapure water, dust technology and extractant respectively
Equipment.
Another object of the present invention can be achieved through the following technical solutions: a kind of side extracting organotin in plastics
Method includes the following steps: that the plastic sample that will need to detect is cut into size corresponding with sample cell, is placed in sample cell vertically；
It is indoor that the sample that mechanical tweezers clamp in one of sample cell is sent to elution-ultrasonic extraction one；Mechanical tweezers keep clamping
State, integrally indoor elution dust technology of the head to indoor penetrating 10ml, ultrasonic device stop after opening 20 seconds for elution-ultrasonic extraction
Only, liquid is discharged to waste liquid chamber through waste pipe；Head is eluted to indoor penetrating ultrapure water, the liquid after flushing is arranged through waste pipe
Waste liquid chamber is arrived out；Open drying air fan and the dry elution-ultrasonic extraction one room of air exhauster；Head is eluted to indoor penetrating 10ml
Extractant, ultrasonic device unlatching stop after ten minutes, and liquid is discharged to finished room through finished product pipeline；After extraction elute head to
Elution-indoor penetrating the ultrapure water of ultrasonic extraction one, ultrasonic device stop after opening 5 seconds, are discharged to waste liquid pool through finished product pipeline
It is interior, ultrapure water is sprayed into again, and ultrasound is discharged in waste liquid pool after 5 seconds by finished product pipeline；Aforesaid operations are repeated, until sample is complete
Portion has been extracted.
The extractant is methanol as a preferred technical solution,.The concentration of the dust technology is 10%-20%.
Compared with the prior art, the invention has the following advantages and beneficial effects:
1. the present invention, being capable of batch using the sample room for including multiple sample cells and the finished room including multiple pan tanks
Ground handles plastic sample, reduces the pre-treatment time for handling a large amount of samples, promotes the analysis detection efficiency of organotin.
2. the extraction equipment that the present invention uses is small in size, integrated level is high.
3. extracting process of the invention can extract rapidly organotin, the waste of generation is few, and consumptive material is few.
Detailed description of the invention
Fig. 1 is the apparatus structure schematic diagram that organotin in plastics is extracted in the embodiment of the present invention；
Fig. 2 is sample room structural schematic diagram in the embodiment of the present invention；
Fig. 3 is finished room structural schematic diagram in the embodiment of the present invention；
Fig. 4 is elution in the embodiment of the present invention-ultrasonic extraction all-in-one machine structure schematic diagram.
Wherein: 1: sample room, 2: mechanical tweezers, 3: elution-ultrasonic extraction all-in-one machine, 4: ultrapure water, 5: dust technology, 6: extraction
Take agent, 7: ultrasonic device, 8: drying air fan, 9: air exhauster, 10: liquid pump, 11: finished room, 12: waste liquid chamber, 13: consumption sample case
Body, 14: waste liquid pool, 101: sample cell, 102: rotary shaft, 111: pan tank, 112: rotary shaft, 301: elution head, 302: water inlet
Pipeline, 303: waste pipe, 304: finished product pipeline.
Specific embodiment
Present invention will now be described in further detail with reference to the embodiments and the accompanying drawings, but embodiments of the present invention are unlimited
In this.
The device of organotin includes that consumption sample cabinet, sample room, mechanical tweezers, elution-ultrasound extract in a kind of extraction plastics
Take all-in-one machine, finished room, waste liquid chamber, drying air fan and air exhauster.
Consumption sample cabinet connect by liquid pump with elution-ultrasonic extraction all-in-one machine, it is internal equipped with loading ultrapure water respectively, it is dense
Degree is the dust technology of 10%-20% and the equipment of extractant.
Sample room includes multiple sample cells, and concentric circles distribution is presented in sample cell.Sample need to be cut into 1cm*1cm, put vertically
In sample cell.Sample room centre is equipped with rotary shaft, and sample room can be rotated around rotary shaft.
Mechanical tweezers are set between sample room and elution-ultrasonic extraction all-in-one machine, can cooperate the sample room of rotation, accurately
The corresponding sample of clamping be put into elution-ultrasonic extraction all-in-one machine.
Elution-ultrasonic extraction all-in-one machine is separately connected by liquid pump and finished room and waste liquid chamber.Drying air fan passes through pipeline
It is sequentially communicated elution-ultrasonic extraction all-in-one machine and air exhauster.Elution-ultrasonic extraction may be implemented in drying air fan, air exhauster
Drying in all-in-one machine.Ultrasonic device is installed, ultrasonic device can be in the sample elution stage in elution-ultrasonic extraction all-in-one machine
Achieve the purpose that high-efficiency washing by the ultrasound of short time, efficient extraction is reached by the ultrasound of certain time in the sample extraction stage
The purpose taken.Elution head, water inlet line, waste pipe and finished product pipeline, water inlet pipe are equipped with inside elution-ultrasonic extraction all-in-one machine
Road connection consumption sample cabinet, waste pipe are connect by liquid pump with waste liquid chamber, and finished product pipeline is connect by liquid pump with finished room.
Finished room includes multiple pan tanks, and concentric circles distribution is presented in pan tank.Finished room centre is equipped with rotary shaft, at
Product room can be rotated around rotary shaft.The finished product that each sample extraction obtains can flow into corresponding pan tank.
Using the common three famous brands water supply in Guangzhou City with plastic pipe as process object, by plastic pipe, manufacturer is straight
Pick sample.There are 10 parts of polyvinyl chloride (abbreviation PVC-U) tubing, 10 parts of polyethylene (abbreviation PE) tubing and 10 parts of polypropylene respectively
(abbreviation PP-R) tubing.And trimethyltin chloride TMT content in the plastic pipe is measured based on Liquid Chromatography/Mass Spectrometry.
The plastic pipe sample detected will be needed to be cut into 1cm*1cm, be placed in sample cell vertically, mechanical tweezers are successively by sample
Product are sent to elution-ultrasonic extraction one interior, and mechanical tweezers keep clamp position at this time, elute head to the dilute of indoor penetrating 10ml
Nitric acid, ultrasonic device stop after opening 20 seconds, and liquid is discharged to waste liquid chamber through waste pipe.It is ultrapure to indoor penetrating to elute head
Water, the liquid after flushing are discharged to waste liquid chamber through waste pipe.Open drying air fan and the dry elution-ultrasonic extraction of air exhauster
Integrated room.Head is eluted to indoor penetrating 10ml methanol, after ultrasonic extraction in 10 minutes, liquid is transported to pair through finished product pipeline
In the pan tank answered.After extraction, elution head was discharged for cleaning through finished product pipeline to indoor penetrating ultrapure water, ultrasound 5 seconds
Into waste liquid pool, ultrapure water is sprayed into again, and ultrasound is discharged in waste liquid pool after 5 seconds by finished product pipeline, cleans finished product pipeline.
After the membrane filtration for being 0.22 μm by aperture by the indoor extract liquor of finished product, with UPLC-MS/MS (ultra high efficiency
Liquid Chromatography-Tandem Mass Spectrometry) Lai Jinhang assay.
Chromatographic condition are as follows: chromatographic column: C18 (2.1mm × 150mm × 2.7 μm)；Column temperature: 40 DEG C；Flow velocity: 0.30ml/min；
Sample volume: 10 μ l.Mass Spectrometry Conditions are as follows: corresponding spray voltage, entrance potential, focus voltage value be respectively equal to 5500V, 10V, with
And 400V；It is 550 DEG C that used ion source temperature value, which is then equal to used ion source temperature value,；Gas and auxiliary gas in source
Flow value is equal to 55L/min, gas curtain atmospheric pressure 20psi；Residence time 40ms.
The testing result of plastic pipe TMT is as shown in table 1.Wherein used calculation formula is X=C × V/m, wherein X
For TMT content in sample, unit is milligrams per kilogram (mg/kg)；C is TMT content in measurement liquid, and unit is micrograms per millilitre (μ
g/ml)；V is measurement liquid constant volume, and unit is milliliter (ml)；M is sample quality, and unit is gram (g).
The detection case of 1 different type plastic pipe TMT of table
In 10 parts of polychloroethylene pipes detected, contain trimethyltin chloride TMT.And polyvinyl piping materials and polypropylene
Trimethyltin chloride is not detected in tubing.Its reason is that polyvinyl chloride is poor to the stability of light and heat, and through a long time is exposed to the sun
Or 100 DEG C or more, generation hydrogen chloride will be decomposed, and further autocatalysis is decomposed, and causes to change colour, physical mechanical property
Decline rapidly.So in order to promote the stability of plastic products, preventing its aging when manufacturing igelite, producing
Corresponding stabilizer must be added in the process, mainly based on organic tin stabilizer.And trimethyltin chloride is that production is organic
By-product when tin stabilizer, thus depositing for trimethyltin chloride can be usually found inside polyvinyl chloride (PVC-U) tubing
?.And polyethylene (PE), polypropylene (PP-R) have good heat resistance, and its chemical stability is fine, try various chemistry
Agent is all more stable, so need not still further add stabilizer in process of production.Therefore in polyvinyl piping materials and polypropylene pipe
TMT is not detected not due to produced by equipment deficiency.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
Limitations on the scope of the patent of the present invention therefore cannot be interpreted as.It should be pointed out that for those of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to guarantor of the invention
Protect range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (10)
1. the device of organotin in a kind of extraction plastics, which is characterized in that including consumption sample cabinet, sample room, mechanical tweezers, leaching
- ultrasonic extraction all-in-one machine, finished room, waste liquid chamber, drying air fan and air exhauster are washed, consumption sample cabinet passes through liquid pump and leaching
- ultrasonic extraction all-in-one machine connection is washed, mechanical tweezers are set between sample room and elution-ultrasonic extraction all-in-one machine, elution-ultrasound
Extraction all-in-one machine is separately connected by liquid pump and finished room and waste liquid chamber；The drying air fan is sequentially communicated elution-by pipeline
Ultrasonic extraction all-in-one machine and air exhauster.
2. the apparatus according to claim 1, which is characterized in that be equipped with ultrasound in the elution-ultrasonic extraction all-in-one machine
Equipment.
3. the apparatus according to claim 1, which is characterized in that be equipped in the elution-ultrasonic extraction all-in-one machine elution head,
Water inlet line, waste pipe and finished product pipeline, water inlet line connection consumption sample cabinet, waste pipe are connected by liquid pump and waste liquid chamber
It connects, finished product pipeline is connect by liquid pump with finished room.
4. the apparatus according to claim 1, which is characterized in that the sample room includes multiple sample cells, and sample cell is presented
Concentric circles distribution.
5. the apparatus according to claim 1, which is characterized in that the finished room includes multiple pan tanks, and pan tank is presented
Concentric circles distribution.
6. the apparatus according to claim 1, which is characterized in that the external waste liquid pool of finished room.
7. the apparatus according to claim 1, which is characterized in that be equipped in the consumption sample cabinet load respectively ultrapure water,
The equipment of dust technology and extractant.
8. using the method for organotin in any one of claim 1-7 described device extraction plastics, which is characterized in that including as follows
Step:
The plastic sample detected will be needed to be cut into size corresponding with sample cell, be placed in sample cell vertically；
It is indoor that the sample that mechanical tweezers clamp in one of sample cell is sent to elution-ultrasonic extraction one；
Mechanical tweezers keep clamp position, integrated indoor elution dust technology of the head to indoor penetrating 10ml of elution-ultrasonic extraction,
Ultrasonic device stops after opening 20 seconds, and liquid is discharged to waste liquid chamber through waste pipe；Head is eluted to indoor penetrating ultrapure water, is rinsed
Liquid afterwards is discharged to waste liquid chamber through waste pipe；
Open drying air fan and the dry elution-ultrasonic extraction one room of air exhauster；
Head is eluted to indoor penetrating 10ml extractant, ultrasonic device unlatching stops after ten minutes, and liquid is discharged to through finished product pipeline
Finished room；
Head is eluted after extraction to elution-indoor penetrating ultrapure water of ultrasonic extraction one, ultrasonic device stops after opening 5 seconds,
It is discharged in waste liquid pool through finished product pipeline, sprays into ultrapure water again, ultrasound is discharged in waste liquid pool after 5 seconds through finished product pipeline；
Aforesaid operations are repeated, until sample has all been extracted.
9. the method for organotin in a kind of extraction plastics according to claim 8, which is characterized in that the extractant is first
Alcohol.
10. the method for organotin in a kind of extraction plastics according to claim 8, which is characterized in that the dust technology
Concentration is 10%-20%.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115078605A (en) * | 2022-06-15 | 2022-09-20 | 宁波中普检测技术服务有限公司 | Method for detecting isooctyl thioglycolate di-n-octyl tin in polyvinyl chloride plastic |
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