CN212514432U - Sample introduction device of gas chromatograph - Google Patents
Sample introduction device of gas chromatograph Download PDFInfo
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- CN212514432U CN212514432U CN202020735297.7U CN202020735297U CN212514432U CN 212514432 U CN212514432 U CN 212514432U CN 202020735297 U CN202020735297 U CN 202020735297U CN 212514432 U CN212514432 U CN 212514432U
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- 238000005070 sampling Methods 0.000 claims abstract description 35
- 238000002347 injection Methods 0.000 claims description 8
- 239000007924 injection Substances 0.000 claims description 8
- 230000005540 biological transmission Effects 0.000 claims description 7
- 230000005611 electricity Effects 0.000 claims description 6
- 239000007787 solid Substances 0.000 claims description 6
- 238000001514 detection method Methods 0.000 abstract description 4
- 239000007789 gas Substances 0.000 description 11
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 3
- 235000017491 Bambusa tulda Nutrition 0.000 description 3
- 241001330002 Bambuseae Species 0.000 description 3
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 3
- 239000011425 bamboo Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 101100520231 Caenorhabditis elegans plc-3 gene Proteins 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 239000012159 carrier gas Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000002337 anti-port Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 238000004587 chromatography analysis Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005264 electron capture Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- XNGIFLGASWRNHJ-UHFFFAOYSA-N phthalic acid Chemical class OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 description 1
- 125000005575 polycyclic aromatic hydrocarbon group Chemical group 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000012855 volatile organic compound Substances 0.000 description 1
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- Sampling And Sample Adjustment (AREA)
Abstract
The utility model discloses a gas chromatograph's sampling device, comprising a base plate, L type backup pad, drive mechanism, advance kind subassembly and joint board, the upper surface left side fixedly connected with slip table of bottom plate, the left and right sides face of slip table all is equipped with the dovetail, the extrados sliding connection of slip table has the slide, the side is provided with the slider with the inside sliding connection of dovetail in the vertical part of slide, the horizontal part upper surface right-hand member fixedly connected with second motor of L type backup pad, the output shaft extrados of second motor rotates with the through-hole inner wall of L type backup pad horizontal part right-hand member to be connected, the lower fixed surface of the output shaft of second motor is connected with electric putter, drive mechanism includes the supporting seat, first motor, screw rod and connecting block, the supporting seat symmetry sets up both ends. The utility model discloses can take a sample and advance the appearance automatically, avoid the pollution that artifical sample brought to the sample, improve detection data, convenient to use.
Description
Technical Field
The utility model relates to a biological analysis experiment technical field specifically is a gas chromatograph's sampling device.
Background
Gas chromatograph, it is a chromatographic analysis instrument using gas as mobile phase, its principle is mainly to utilize the difference of boiling point, polarity and adsorption property of the substance to realize the separation of mixture, the sample to be analyzed is gasified in the gasification chamber and then brought into the chromatographic column by inert gas, the column contains liquid or solid fixed phase, each component in the sample tends to form distribution or adsorption equilibrium between mobile phase and fixed phase, along with the flow of carrier gas, the sample component is repeatedly distributed or adsorbed/desorbed many times during the movement, the component with high distribution concentration in the carrier gas firstly flows out of the chromatographic column, and the component flows out after the component with high distribution concentration in the fixed phase flows out of the chromatographic column, and then the component enters the detector to be measured, the commonly used detector is electron capture detector, hydrogen flame detector, photometric detector and thermal conductivity detector, etc., the gas chromatograph can be used for analyzing the thermally stable organic matter whose boiling point is not more than 500 deg.C in soil, such as volatile organic compounds, organic chlorine, organic phosphorus, polycyclic aromatic hydrocarbons, phthalate esters and the like, have the advantages of rapidness, effectiveness, high sensitivity and the like, and play an important role in the research of soil organic compounds, but the existing gas chromatograph has low automation degree, needs manual sample addition, can cause pollution to samples, influences the accuracy of detection results, and can consume great manpower, thus causing low detection efficiency.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to overcome current defect, provide a gas chromatograph's sampling device, can take a sample and advance the appearance automatically, avoid the pollution that artifical sample brought to the sample, improve the testing data, convenient to use can effectively solve the problem in the background art.
In order to achieve the above object, the utility model provides a following technical scheme: a sample introduction device of a gas chromatograph comprises a bottom plate, an L-shaped supporting plate, a transmission mechanism, a sample introduction assembly and a clamping plate;
a bottom plate: a sliding table is fixedly connected to the left side of the upper surface of the sliding table, dovetail grooves are formed in the left side surface and the right side surface of the sliding table, a sliding plate is connected to the outer arc surface of the sliding table in a sliding mode, and a sliding block connected with the inside of each dovetail groove in a sliding mode is arranged on the inner side surface of the vertical portion of the sliding plate;
l-shaped support plate: the right end of the upper surface of the horizontal part of the L-shaped support plate is fixedly connected with a second motor, the outer arc surface of an output shaft of the second motor is rotatably connected with the inner wall of the through hole at the right end of the horizontal part of the L-shaped support plate, and the lower surface of the output shaft of the second motor is fixedly connected with an electric push rod;
the transmission mechanism is as follows: the sliding plate comprises supporting seats, a first motor, a screw rod and a connecting block, wherein the supporting seats are symmetrically arranged at the front end and the rear end of the upper surface of the sliding table, the first motor is fixedly connected to the outer side surface of the supporting seat at the front side, an output shaft of the first motor is rotatably connected with the inside of a round hole of the supporting seat at the front side, the front end of the screw rod is fixedly connected with the rear end head of the output shaft of the first motor, the rear end of the screw rod is rotatably connected with the inside of a round hole at the upper end of the supporting seat at the rear side, the connecting block;
a sample introduction assembly: the electric push rod is arranged at the bottom end of the electric push rod;
a clamping and connecting plate: the middle part of the right side surface of the connecting block is arranged;
wherein: still include the PLC controller, PLC controller fixed connection is in the upper surface of bottom plate, and external power source is connected to the input electricity of PLC controller, and first motor, second motor and electric putter's input is connected to the output electricity respectively of PLC controller, and this gas chromatograph's sampling device can take a sample and advance the appearance automatically, avoids the pollution that artifical sample brought to the sample, improves the test data, convenient to use.
Further, advance kind the subassembly and include piston rod, piston cylinder and sampling needle, piston rod fixed connection is in electric putter's lower surface, and piston fixed connection is in the lower surface of piston rod, piston cylinder and the extrados sliding connection of piston, and the extrados in top of piston cylinder is equipped with symmetric distribution's engaging lug, and the sampling needle sets up in the bottom of piston cylinder, takes a sample automatically and advances the appearance, avoids artifical sample to cause the pollution to the sample, influences the testing data.
Further, the right-hand member of joint board is equipped with the through-hole, and the through-hole top of joint board is equipped with the first fluting that corresponds with the engaging lug, and first grooved lower extreme is equipped with the second fluting, and the second fluting is the loop configuration, and the grooved excircle radius of second is not less than the distance between two points that two engaging lugs are the farthest, carries out the joint to the engaging lug and fixes, is convenient for sample and advance a kind automatically.
Further, still including solid fixed ring and bearing, fixed ring fixed connection is at L type backup pad horizontal part lower surface right-hand member, the extrados of bearing and solid fixed ring's intrados fixed connection, the intrados of bearing and electric putter's extrados top fixed connection play the fixed effect of support to electric putter, reduce the torsion to second motor output shaft.
Further, still include sample bottle and advance kind bottle, sample bottle and advance kind bottle all set up in the upper surface right side of bottom plate, and sample bottle and advance kind bottle all correspond with the sample needle, are convenient for advance kind and sample automatically.
Compared with the prior art, the beneficial effects of the utility model are that:
the output shaft of the first motor drives the screw to rotate, the screw drives the connecting block to move, the connecting block drives the L-shaped supporting plate and the clamping plate to move to the upper part of the sampling bottle respectively, the electric push rod drives the piston cylinder to move downwards through the piston rod and the piston, the piston cylinder drives the connecting lug to move until the lower surface of the connecting lug is attached to the lower surface of the second groove, the output shaft of the second motor drives the connecting lug to rotate ninety degrees, so that the upper surface of the connecting lug is clamped with the lower surface of the second groove, the sampling needle is stretched into the sampling bottle by the piston cylinder at the moment, then the electric push rod is controlled to retract, the electric push rod drives the piston to move upwards through the piston rod, the piston slides relative to the inner wall of the piston cylinder to form negative pressure at the lower end of the piston cylinder, a sample is sucked into the piston cylinder, then the second motor is controlled to rotate ninety degrees again, then make electric putter continue to contract and drive the piston section of thick bamboo and rise, according to above-mentioned principle, first motor antiport drives backup pad and joint board and removes to the top of advancing the kind bottle, start electric putter and make engaging lug and the laminating of the grooved upper surface of second, then electric putter continues to stretch out and presses the piston rod downwards, the piston rod drives the relative piston section of thick bamboo of piston section of thick bamboo and removes, inject the sample into and advance kind inside the kind bottle, this gas chromatograph's sampling device can take a sample and advance the kind automatically, avoid the pollution that the manual sampling brought the sample, improve the detected data, degree of automation is high, high durability and convenient use.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic view of the partial sectional plane structure of the present invention.
In the figure: 1. the sampling device comprises a base plate, a sliding table 2, a sliding table 201, a dovetail groove 202, a sliding plate 3, a PLC controller, an L-shaped supporting plate 4, an L-shaped supporting plate 5, a transmission mechanism 51, a supporting seat 52, a first motor 53, a screw rod 54, a connecting block 54, a second motor 6, an electric push rod 7, a sampling assembly 8, a piston rod 81, a piston rod 82, a piston 83, a piston cylinder 84, a sampling needle 831, a connecting lug 831, a clamping plate 9, a first groove 91, a second groove 92, a sampling bottle 10, a sampling bottle 11, a sampling bottle 12, a fixing ring 13 and a bearing.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-2, the sample injection device of the gas chromatograph provided by the present invention includes a bottom plate 1, an L-shaped supporting plate 4, a transmission mechanism 5, a sample injection assembly 8 and a clamping plate 9;
bottom plate 1: the left side of the upper surface of the sliding table 2 is fixedly connected with the sliding table 2, the left side surface and the right side surface of the sliding table 2 are both provided with dovetail grooves 201, the outer arc surface of the sliding table 2 is connected with a sliding plate 202 in a sliding manner, and the inner side surface of the vertical part of the sliding plate 202 is provided with a sliding block which is connected with the inside of the dovetail grooves 201;
l-shaped support plate 4: the right end of the upper surface of the horizontal part of the L-shaped support plate is fixedly connected with a second motor 6, the outer arc surface of an output shaft of the second motor 6 is rotatably connected with the inner wall of a through hole at the right end of the horizontal part of the L-shaped support plate 4, and the lower surface of the output shaft of the second motor 6 is fixedly connected with an electric push rod 7;
the transmission mechanism 5: the sampling device comprises a supporting seat 51, a first motor 52, a screw 53 and a connecting block 54, wherein the supporting seat 51 is symmetrically arranged at the front end and the rear end of the upper surface of a sliding table 2, the first motor 52 is fixedly connected to the outer side surface of the supporting seat 51 at the front side, an output shaft of the first motor 52 is rotatably connected with the inside of a round hole of the supporting seat 51 at the front side, the front end of the screw 53 is fixedly connected with the rear end head of the output shaft of the first motor 52, the rear end of the screw 53 is rotatably connected with the inside of a round hole at the upper end of the supporting seat 51 at the rear side, the connecting block 54 is fixedly connected to the upper surface of a sliding plate 202, the connecting block 54 is in threaded connection with the screw 53, the PLC 3 controls the first motor 52 to be started, the output shaft of the first motor 52 drives the screw 53 to rotate;
and (3) a sample injection assembly 8: the sampling device comprises a piston rod 81, a piston 82, a piston cylinder 83 and a sampling needle 84, wherein the piston rod 81 is fixedly connected to the lower surface of the electric push rod 7, the piston 82 is fixedly connected to the lower surface of the piston rod 81, the piston cylinder 83 is in sliding connection with the outer arc surface of the piston 82, symmetrically-distributed connecting lugs 831 are arranged on the outer arc surface of the top end of the piston cylinder 83, and the sampling needle 84 is arranged at the bottom end of the piston cylinder 83 to automatically sample and sample, so that the pollution of manual sampling to samples is avoided, and detection data are influenced;
the clamping plate 9: is arranged in the middle of the right side surface of the connecting block 54; the right end of the clamping plate 9 is provided with a through hole, the top end of the through hole of the clamping plate 9 is provided with a first open slot 91 corresponding to the connecting lug 831, the lower end of the first open slot 91 is provided with a second open slot 92, the second open slot 92 is of an annular structure, the outer radius of the second open slot 92 is not smaller than the distance between the two farthest points of the two connecting lugs 831, the connecting lugs 831 are clamped and fixed, the electric push rod 7 drives the piston cylinder 83 to move downwards through the piston rod 81 and the piston 82, the piston cylinder 83 drives the connecting lugs 831 to move until the lower surfaces of the connecting lugs 831 are attached to the lower surfaces of the second open slot 92, the second motor 6 is started, the output shaft of the second motor 6 sequentially passes through the electric push rod 7, the piston rod 81, the piston 82 and the piston cylinder 83 to drive the connecting lugs 831 to rotate ninety degrees, so that the upper surfaces of the connecting lugs 831 are clamped with the lower surfaces of the second open slot 92, then the electric push rod 7 is controlled to retract, the electric push rod 7 drives the piston 82 to move upwards through the piston rod 81, the piston 82 slides relative to the inner wall of the piston cylinder 83 to enable the lower end of the piston cylinder 83 to form negative pressure, and the sample is sucked into the piston cylinder 83.
Wherein: still including solid fixed ring 12 and bearing 13, solid fixed ring 12 fixed connection in the 4 horizontal part lower surface right-hand members of L type backup pad, the extrados of bearing 13 and the intrados fixed connection who gu fixed ring 12, the extrados top fixed connection of bearing 13 and electric putter 7 plays the fixed effect of support to electric putter 7, reduces the torsion to the output shaft of second motor 6.
Wherein: still including sampling bottle 10 and sample bottle 11, sampling bottle 10 and sample bottle 11 all set up in the upper surface right side of bottom plate 1, and sampling bottle 10 and sample bottle 11 all correspond with sampling needle 84, are convenient for advance kind and sample automatically.
Wherein: still include PLC controller 3, PLC controller 3 fixed connection is in the upper surface of bottom plate 1, and external power source is connected to PLC controller 3's input electricity, and first motor 52, second motor 6 and electric putter 7's input are connected to PLC controller 3's output electricity respectively.
When in use: the PLC 3 controls the first motor 52 to start, the output shaft of the first motor 52 drives the screw rod 53 to rotate, the screw rod 53 drives the connecting block 54 to move, the connecting block 54 drives the L-shaped supporting plate 4 and the clamping plate 9 to move to the upper part of the sampling bottle 10 respectively, the electric push rod 7 is started, the electric push rod 7 drives the piston cylinder 83 to move downwards through the piston rod 81 and the piston 82, the piston cylinder 83 drives the connecting lug 831 to move until the lower surface of the connecting lug 831 is attached to the lower surface of the second slot 92, the second motor 6 is started, the output shaft of the second motor 6 drives the connecting lug 831 to rotate ninety degrees through the electric push rod 7, the piston rod 81, the piston 82 and the piston cylinder 83 in sequence, so that the upper surface of the connecting lug 831 is clamped with the lower surface of the second slot 92, at the moment, the sampling needle 84 is extended into the sampling bottle 10 through the piston cylinder 83, then the electric push rod 7 is controlled to retract, the piston 82 slides relative to the inner wall of the piston cylinder 83 to enable the lower end of the piston cylinder 83 to form negative pressure, a sample is sucked into the piston cylinder 83, then the second motor 6 is controlled to rotate ninety degrees again, the upper surface of the first slot 91 is enabled to be separated from the limit of the connecting lug 831, then the electric push rod 7 is enabled to continue to contract to drive the piston cylinder 83 to ascend, according to the principle, the first motor 52 rotates reversely to drive the supporting plate 4 and the clamping plate 9 to move to the upper portion of the sample feeding bottle 11, the electric push rod 7 is started to enable the connecting lug 831 to be attached to the upper surface of the second slot 92, then the electric push rod 7 continues to stretch out to press the piston rod 81 downwards, the piston rod 81 drives the piston cylinder 83 to move relative to the piston cylinder 83, and the.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. A sampling device of a gas chromatograph is characterized in that: comprises a bottom plate (1), an L-shaped supporting plate (4), a transmission mechanism (5), a sample injection assembly (8) and a clamping plate (9);
base plate (1): the left side of the upper surface of the sliding table (2) is fixedly connected with the sliding table, the left side surface and the right side surface of the sliding table (2) are respectively provided with a dovetail groove (201), the outer arc surface of the sliding table (2) is connected with a sliding plate (202) in a sliding manner, and the inner side surface of the vertical part of the sliding plate (202) is provided with a sliding block which is connected with the inside of the dovetail groove (;
l-shaped support plate (4): the right end of the upper surface of the horizontal part of the L-shaped support plate is fixedly connected with a second motor (6), the outer arc surface of an output shaft of the second motor (6) is rotatably connected with the inner wall of a through hole at the right end of the horizontal part of the L-shaped support plate (4), and the lower surface of the output shaft of the second motor (6) is fixedly connected with an electric push rod (7);
transmission mechanism (5): the sliding table comprises a supporting seat (51), a first motor (52), a screw rod (53) and a connecting block (54), wherein the supporting seat (51) is symmetrically arranged at the front end and the rear end of the upper surface of a sliding table (2), the first motor (52) is fixedly connected to the outer side surface of the supporting seat (51) at the front side, an output shaft of the first motor (52) is rotatably connected with the inside of a round hole of the supporting seat (51) at the front side, the front end of the screw rod (53) is fixedly connected with the rear end head of the output shaft of the first motor (52), the rear end of the screw rod (53) is rotatably connected with the inside of a round hole at the upper end of the supporting seat (51) at the rear side, the connecting block (54) is fixedly connected to the upper surface of a sliding;
sample introduction assembly (8): is arranged at the bottom end of the electric push rod (7);
clamping plate (9): is arranged in the middle of the right side surface of the connecting block (54);
wherein: still include PLC controller (3), PLC controller (3) fixed connection is in the upper surface of bottom plate (1), and external power source is connected to the input electricity of PLC controller (3), and the input of first motor (52), second motor (6) and electric putter (7) is connected to the output of PLC controller (3) electricity respectively.
2. The sample injection device of a gas chromatograph according to claim 1, characterized in that: advance appearance subassembly (8) and include piston rod (81), piston (82), piston cylinder (83) and sampling needle (84), piston rod (81) fixed connection is in the lower surface of electric putter (7), piston (82) fixed connection in the lower surface of piston rod (81), piston cylinder (83) and the extrados sliding connection of piston (82), and the extrados in top of piston cylinder (83) is equipped with engaging lug (831) of symmetric distribution, and sampling needle (84) set up in the bottom of piston cylinder (83).
3. The sample injection device of a gas chromatograph according to claim 2, characterized in that: the right-hand member of joint board (9) is equipped with the through-hole, and the through-hole top of joint board (9) is equipped with first fluting (91) that correspond with engaging lug (831), and the lower extreme of first fluting (91) is equipped with second fluting (92), and second fluting (92) are loop configuration, and the excircle radius of second fluting (92) is not less than the distance between two points that two engaging lugs (831) are furthest.
4. The sample injection device of a gas chromatograph according to claim 1, characterized in that: still including solid fixed ring (12) and bearing (13), gu fixed ring (12) fixed connection in L type backup pad (4) horizontal part lower surface right-hand member, the extrados of bearing (13) and the intrados fixed connection who gu fixed ring (12), the extrados top fixed connection of the intrados of bearing (13) and electric putter (7).
5. The sample injection device of a gas chromatograph according to claim 2, characterized in that: still including sampling bottle (10) and advance kind bottle (11), sampling bottle (10) and advance kind bottle (11) all set up in the upper surface right side of bottom plate (1), and sampling bottle (10) and advance kind bottle (11) all correspond with sample needle (84).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020735297.7U CN212514432U (en) | 2020-05-07 | 2020-05-07 | Sample introduction device of gas chromatograph |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020735297.7U CN212514432U (en) | 2020-05-07 | 2020-05-07 | Sample introduction device of gas chromatograph |
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| Publication Number | Publication Date |
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| CN212514432U true CN212514432U (en) | 2021-02-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020735297.7U Expired - Fee Related CN212514432U (en) | 2020-05-07 | 2020-05-07 | Sample introduction device of gas chromatograph |
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| CN (1) | CN212514432U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114018648A (en) * | 2021-11-02 | 2022-02-08 | 扬州市天诗美景日化有限公司 | Wash and protect product production with quantitative sampling device |
| CN115575654A (en) * | 2022-12-09 | 2023-01-06 | 华测检测认证集团股份有限公司 | Device and method for detecting allergen in cosmetics |
-
2020
- 2020-05-07 CN CN202020735297.7U patent/CN212514432U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114018648A (en) * | 2021-11-02 | 2022-02-08 | 扬州市天诗美景日化有限公司 | Wash and protect product production with quantitative sampling device |
| CN115575654A (en) * | 2022-12-09 | 2023-01-06 | 华测检测认证集团股份有限公司 | Device and method for detecting allergen in cosmetics |
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Granted publication date: 20210209 |