CN208520675U - A kind of sample liquid test tube and it is dried with nitrogen instrument - Google Patents
A kind of sample liquid test tube and it is dried with nitrogen instrument Download PDFInfo
- Publication number
- CN208520675U CN208520675U CN201821228373.4U CN201821228373U CN208520675U CN 208520675 U CN208520675 U CN 208520675U CN 201821228373 U CN201821228373 U CN 201821228373U CN 208520675 U CN208520675 U CN 208520675U
- Authority
- CN
- China
- Prior art keywords
- test tube
- accommodating chamber
- sample liquid
- tube body
- partition
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
Abstract
The utility model relates to a kind of sample liquid test tube and it is dried with nitrogen instrument, is related to chemical analysis test article field.Sample liquid test tube includes the test tube body and partition with accommodating chamber, partition is set in test tube body for accommodating chamber to be divided into the first accommodating chamber and the second accommodating chamber, second accommodating chamber is located at the side that the first accommodating chamber is open far from test tube, and test tube body is equipped with the through-hole being connected to the second accommodating chamber.Sample liquid test tube and it is dried with nitrogen instrument including it, effectively solves the problem of that the subsequent nitrogen for being not easy to observe sample liquid when sample liquid is blown to lower liquid level by nitrogen blows situation.
Description
Technical field
The utility model relates to chemical analysis test article fields, blow in particular to a kind of sample liquid test tube and nitrogen
Dry instrument.
Background technique
With being widely used for pesticide, Pesticide Residue has become the principal element for influencing world agricultural trade, day
Concern and attention of the benefit by national governments and the common people.Current Analytical Techniques of Pesticide Residues mainly includes sample liquid pre-treatment and instrument
Device analytical technology.The mistake that sample liquid pre-treatment refers to the preparation of sample liquid and component to be measured in sample liquid is extracted, purifies, is concentrated
Journey can effectively eliminate matrix interference by sample liquid pre-treatment, reduce the damage to instrument, the accuracy of improvement method, precision
Degree, selectivity and sensitivity.
Gas chromatography analysis method and liquid in nitrogen evaporator, such as Detecting Pesticide can be all used in sample liquid concentration process
It is NY/T761-2008, gas chromatograph-mass spectrometer analysis side that analysis of hplc method (carbamates), which commonly uses examination criteria,
Method working standard GB/T5009.218-2008 and GB23200.8-2016, liquid chromatography-tandem mass spectrometry working standard GB/
T20769-2008, these methods are directed to use in sample liquid pretreatment process and are dried with nitrogen instrument.It is dried with nitrogen instrument
(TermovapSampleConcentrator) also known as are as follows: nitrogen purges instrument, and nitrogen blows concentrating instrument, and sample liquid concentrating instrument, referred to as: nitrogen is blown
Instrument.Working principle is to make the rapid solvent evaporation in sample liquid by the way that nitrogen to be blown into heating sample liquid test tube, separate, to sample liquid
Sample liquid concentration is carried out, obtains expected result quickly.
But sample liquid test tube generally is replaced with the similar glass tube such as colorimetric cylinder at present, due to needing that test tube is inserted into when heating
In water, when liquid nitrogen is blown to lower liquid level, the nitrogen for being not easy to observation sample liquid blows situation.
Utility model content
The purpose of this utility model is to provide a kind of sample liquid test tube, it is suitable for be dried with nitrogen instrument and be used cooperatively, have
Effect solves the problem of that the nitrogen that observation sample liquid is not easy to when sample liquid is blown to lower liquid level by nitrogen blows situation.
The another object of the utility model is that providing one kind is dried with nitrogen instrument, can quickly and effectively carry out to sample liquid dense
Contracting, while the nitrogen convenient for observation sample liquid blows situation.
The embodiments of the present invention are achieved in that
A kind of sample liquid test tube comprising test tube body and partition with accommodating chamber, partition are set in test tube body
For accommodating chamber to be divided into the first accommodating chamber and the second accommodating chamber, the second accommodating chamber is located at the first accommodating chamber and is open far from test tube
Side, test tube body is equipped with the through-hole that is connected to the second accommodating chamber.
Further, in the utility model preferred embodiment, aforementioned barriers are prominent to the side being open far from test tube
Form protruding portion, the inner wall interval setting of protruding portion and the second accommodating chamber.
Further, in the utility model preferred embodiment, the junction of aforementioned barriers and test tube body is set as
One limit plane, test tube body correspond to protruding portion far from first limit plane maximum distance apart be second limit plane, first
It is parallel with the second limit plane to limit plane, through-hole is set between the first limit plane and the second limit plane.
Further, in the utility model preferred embodiment, the above-mentioned tapered setting of protruding portion.
Further, in the utility model preferred embodiment, above-mentioned protruding portion is multiple pipelines for protruding from partition,
The opening of pipeline is connected to the first accommodating chamber, and adjacent any two pipeline enclosure is every setting.
Further, in the utility model preferred embodiment, the position of corresponding first accommodating chamber of above-mentioned test tube body
Equipped with graduation apparatus, the number mark of graduation apparatus is gradually become by the side of the laterally closer test tube opening close to the second accommodating chamber
Greatly.
Further, in the utility model preferred embodiment, above-mentioned test tube body has close to one end that test tube is open
There is dilatation portion, the inner diameter in dilatation portion is become larger by the side for being laterally away from partition close to partition.
Further, in the utility model preferred embodiment, above-mentioned dilatation portion is equipped with guiding groove, the upper table of guiding groove
Face is flushed with test tube opening, and the depth of guiding groove gradually becomes from one end close to test tube body to one end far from test tube body
It is small.
One kind being dried with nitrogen instrument comprising blowing needle, heating water bath mechanism and above-mentioned sample liquid test tube, blowing needle are opened with test tube
Mouth is set in heating water bath mechanism the sample liquid being applied in lancing test pipe, test tube.
Further, in the utility model preferred embodiment, the above-mentioned instrument that is dried with nitrogen further includes ontology, heating water bath
Mechanism is set to ontology, and ontology is equipped with elevating mechanism, and elevating mechanism is connect for driving blowing needle and test tube to be open with blowing needle
Cooperation, blowing needle are communicated with gas cylinder by snorkel, and snorkel is equipped with valve.
The beneficial effect of the utility model embodiment is:
It is located at the side that the first accommodating chamber is open far from test tube by the second accommodating chamber, test tube body is equipped with to be accommodated with second
The set-up mode of the through-hole of chamber connection, sample liquid is made an addition in the first accommodating chamber, test tube body is placed in and is used to heat in water
Sample liquid, wherein the side of corresponding second accommodating chamber of test tube body is placed in water, and test tube opening stretches out the water surface and the first accommodating chamber
On the water surface, water can be injected in the second accommodating chamber by through-hole in advance, and conduction heat keeps the sample liquid in the first accommodating chamber uniform
Heating.During concentration, since the first accommodating chamber is located at the water surface or more, even if the liquid level of sample liquid is lower, it is also convenient for
The nitrogen of observation sample liquid blows situation.
Detailed description of the invention
It, below will be to use required in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment
Attached drawing be briefly described, it should be understood that the following drawings illustrates only some embodiments of the utility model, therefore should not be by
Regard the restriction to range as, for those of ordinary skill in the art, without creative efforts, may be used also
To obtain other relevant attached drawings according to these attached drawings.
Fig. 1 is the structural schematic diagram at the first visual angle of the sample liquid test tube that the utility model embodiment 1 provides；
Fig. 2 is the structural schematic diagram at the second visual angle of the sample liquid test tube that the utility model embodiment 1 provides；
Fig. 3 is the structural schematic diagram for the sample liquid test tube that the utility model other embodiments provide；
Fig. 4 is the structural schematic diagram for being dried with nitrogen instrument that the utility model embodiment 2 provides.
Icon: 10- sample liquid test tube；100- test tube body；120- partition；130- accommodating chamber；The first accommodating chamber of 131-；
The second accommodating chamber of 133-；140- test tube opening；150- guiding groove；160- graduation apparatus；170- through-hole；180- protruding portion；190- expands
Appearance portion；20- is dried with nitrogen instrument；200- ontology；210- blowing needle；211- snorkel；213- gas cylinder；215- valve；220- water-bath
Heating mechanism；230- elevating mechanism；250- power switch；260- temperature display.
Specific embodiment
It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Usually here in attached drawing description and
The component of the utility model embodiment shown can be arranged and be designed with a variety of different configurations.
Therefore, requirement is not intended to limit to the detailed description of the embodiments of the present invention provided in the accompanying drawings below
The scope of the utility model of protection, but it is merely representative of the selected embodiment of the utility model.Based in the utility model
Embodiment, every other embodiment obtained by those of ordinary skill in the art without making creative efforts, all
Belong to the range of the utility model protection.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.
It is in the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", " perpendicular
Directly ", the orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, or
The utility model product using when the orientation or positional relationship usually put, be merely for convenience of description the utility model and letter
Change description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with specific orientation construct and
Operation, therefore should not be understood as limiting the present invention.In addition, term " first ", " second ", " third " etc. are only used for area
Divide description, is not understood to indicate or imply relative importance.
In addition, the terms such as term "horizontal", "vertical", " pendency " are not offered as requiring component abswolute level or pendency, and
It is that can be slightly tilted.It is not to indicate the structure if "horizontal" only refers to that its direction is more horizontal with respect to for "vertical"
It has to fully horizontally, but can be slightly tilted.
In the description of the present invention, it should also be noted that, unless otherwise clearly defined and limited, term " is set
Set ", " installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection,
Or it is integrally connected；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, intermediary can also be passed through
It is indirectly connected, can be the connection inside two elements.For the ordinary skill in the art, it can be managed with concrete condition
Solve the concrete meaning of above-mentioned term in the present invention.
Embodiment 1
Fig. 1 is please referred to, the present embodiment provides a kind of sample liquid test tubes 10, are used to hold heating water bath after liquid, are suitable for
Clearly its in observation sample liquid test tube 10 in the less situation of sample liquid amount is specific changes, and is particularly suitable for and is dried with nitrogen instrument 20
It is used cooperatively.
Specifically, Fig. 1 and Fig. 2 is please referred to, sample liquid test tube 10 includes test tube body 100 and partition 120.
Wherein, test tube body 100 is equipped with accommodating chamber 130, and partition 120 is set in test tube body 100, and partition 120 will hold
Chamber 130 of receiving is divided into the first accommodating chamber 131 and the second accommodating chamber 133, wherein the second accommodating chamber 133 is located at the first accommodating chamber
131 sides far from test tube opening 140 that is to say, the first accommodating chamber 131 is connected to test tube opening 140, the first accommodating chamber
131 for placing sample liquid to be concentrated.
During practical nitrogen is blown, in order to accelerate vaporized gas volatilization, prevent the liquefaction at test tube opening 140 from generating water steaming
Gas wall built-up brings greater impact late-run sample processing, reduces the rate of recovery.Test tube body 100 close to test tube opening 140 one
End has dilatation portion 180, and the inner diameter in dilatation portion 180 is by being laterally away from the side of partition 120 gradually close to the one of partition 120
Become larger.Optionally, corners processing can also be carried out far from one end of partition 120 to dilatation portion 180, that is to say dilatation portion 180
The end face of one end far from partition 120 and its outboard sidewalls rounding off, prevent from cutting hand.
Existing sample liquid usually requires that the volumetric flask of sample injection bottle or low capacity is dissolved and be transferred to solvent after nitrogen is blown
Interior constant volume, while being easy to lose sample liquid during shifting.In order to effectively solve the above problems, optionally, test tube opening 140
Equipped with guiding groove 150, the upper surface of guiding groove 150 is flushed with test tube opening 140, and the depth of guiding groove 150 is by close to test tube sheet
One end of body 100 gradually becomes smaller to one end far from test tube body 100.By the setting of guiding groove 150, it is more advantageous to sample
Liquid is transferred in lesser container, prevents the bring loss that leaks outside in transfer process.
Meanwhile at present in sample pretreatment process, often require that nitrogen is blown to nearly dry or nitrogen and is blown to less than some scale,
In order to guarantee can achieve quantitative demand, reduction subsequent step, while highly enriched precision is mentioned, optionally, test tube body 100
The position of corresponding first accommodating chamber 131 is equipped with graduation apparatus 160, and the number mark of graduation apparatus 160 is by close to the second accommodating chamber 133
The side of one laterally closer test tube opening 140 becomes larger.
When heating need test tube is inserted into water, effectively and uniformly to be heated, but when liquid nitrogen be blown to compared with
When low liquid level, the nitrogen for being not easy to observation sample liquid blows situation.Therefore, in the present embodiment, test tube body 100 is equipped with and the second accommodating chamber
The through-holes 170 of 133 connections can be injected water via through holes 170 in second accommodating chamber 133 by the setting of through-hole 170, for pair
First accommodating chamber 131 is heated, to blow situation when liquid nitrogen is blown to lower liquid level convenient for observing the nitrogen of sample liquid.
Wherein, on the basis of the first accommodating chamber 131 is located on the water surface, in order to improve connecing for the first accommodating chamber 131 and water
Contacting surface product can also form protruding portion 180 to the side far from test tube opening 140 is prominent to partition 120, protruding portion 180 and the
The inner wall interval of two accommodating chambers 133 is arranged, and protruding portion 180 is located at underwater, by improving first baffle and the second accommodating chamber
The contact area of water in 133 improves heating efficiency and improves thickening efficiency.
Further, in this embodiment the tapered setting of protruding portion 180.Protruding portion 180 can splice institute with multiple tapers
It obtains or protruding portion 180 is square, rotary table or cylinder of beveling etc..Referring to Fig. 3, the utility model others are implemented
In example, protruding portion 180 is multiple pipelines for protruding from partition 120, and the opening of pipeline is connected to the first accommodating chamber 131, adjacent
Two pipeline enclosures are every setting.
Specifically, the junction of partition 120 and test tube body 100 is set as the first limit plane, and test tube body 100 is corresponding prominent
Portion 180 is set as the second limit plane far from the maximum distance apart of the first limit plane out, and the first limit plane and the second limit are flat
Face is parallel, and through-hole 170 is set between the first limit plane and the second limit plane, within this range, utmostly guarantees
The receiving volume of water effectively improves water for the degree of heat of the sample liquid in the first accommodating chamber 131 and the uniformity of heating.
Wherein, the quantity of through-hole 170 can be one, two, three or five etc., be preferably one in the present embodiment,
Effectively water can be confined in the second accommodating chamber 133, constantly the first accommodating chamber 131 is heated.
Existing sample liquid is generally placed in progress nitrogen in the similar glass tube such as colorimetric cylinder and blows, but there are pipe height to spend for colorimetric cylinder
Height, diameter is small, and liquefaction is easy during nitrogen is blown and generates vapor wall built-up, brings greater impact to late-run sample processing,
Reduce the rate of recovery.Therefore, in actual use process, the height of sample liquid test tube 10 is shortened, and to sample liquid test tube
10 diameter suitably widen, and is separately designed to nozzle horn-like, distributes in time to be conducive to steam, reduce its
140 liquefaction of test tube opening.For example, the height of the first accommodating chamber 131 is 7.5cm, the height of the second accommodating chamber 133 is 3.5cm,
In the first accommodating chamber 131 height refer to the junction of partition 120 and test tube body 100 the distance between to test tube opening 140,
The height of second accommodating chamber 133 is the junction of partition 120 and test tube body 100 between the bottom wall of the second accommodating chamber 133
Distance.
Test tube body 100 corresponds to the straight of diameter second accommodating chamber 133 corresponding with test tube body 100 of the first accommodating chamber 131
Diameter can be identical, can not also be identical, meanwhile, the first accommodating chamber 131 and the second accommodating chamber 133 can be it is cylindric, can also
Think that the area of section at both ends is different round table-like, those skilled in the art can be configured according to actual demand.For example, this reality
It applies in example, the diameter of the outer wall of corresponding first accommodating chamber 131 of test tube body 100 is 2.5cm, and test tube body 100 corresponding second is held
Receive chamber 133 outer wall diameter be 2cm.
The working principle of sample liquid test tube 10 is:
Sample liquid is made an addition in the first accommodating chamber 131, test tube body 100 is placed in and is used to heat sample liquid in water, wherein
The side of corresponding second accommodating chamber 133 of test tube body 100 is placed in water, and test tube opening 140 stretches out the water surface and the first accommodating chamber
131 are located on the water surface, and protruding portion 180 is located at underwater, and water is entered in the second accommodating chamber 133 by through-hole 170 uniformly to be heated
Sample liquid.During concentration, since the first accommodating chamber 131 is located at the water surface or more, situation is blown convenient for observing the nitrogen of sample liquid,
Simultaneously according to graduation apparatus 160, obtain quantitative concentrate, also, pass through the setting of guiding groove 150, by concentrate be transferred into
In the volumetric flask of sample bottle or low capacity when constant volume, sample liquid is effectively prevent to lose.
Embodiment 2
Referring to figure 4., the present embodiment provides one kind to be dried with nitrogen instrument 20 comprising ontology 200, blowing needle 210, water-bath add
The sample liquid test tube 10 that heat engine structure 220, embodiment 1 provide.
Wherein, heating water bath mechanism 220 is set to ontology 200, and test tube is set in heating water bath mechanism 220, and test tube is opened
Mouth 140 stretches out the water surface in heating water bath mechanisms 220, while the first accommodating chamber 131 is located on the water surface, and protruding portion 180 is located at
Underwater.
Ontology 200 be equipped with elevating mechanism 230, elevating mechanism 230 connect with blowing needle 210 for drive blowing needle 210 and
140 cooperation of test tube opening purges invisible spectro sample liquid to keep blowing needle 210 corresponding with test tube opening 140.Wherein, blowing needle
210 are communicated with gas cylinder 213 by snorkel 211, and snorkel 211 is equipped with valve 215.
In order to more accurately control heating temperature, ontology 200 is equipped with the temperature sensor for detecting water temperature, and (figure is not
Show), power switch 250 and temperature display 260, temperature sensor be electrically connected with temperature display 260, power switch 250
It is electrically connected with heating water bath mechanism 220.
The working principle for being dried with nitrogen instrument 20 is:
Sample liquid test tube 10 is set in heating water bath mechanism 220, test tube opening 140 is stretched out heating water bath mechanism 220 and contained
The liquid level of some liquid, is connected to power supply, during which heated water bath heating mechanism 220 to target temperature constantly passes through blowing needle
210 carry out purging invisible spectro sample liquid, when being concentrated into target enrichment, turn off the power switch 250 stoppings heating, and close valve
Door 215 stops blowing.
To sum up, sample liquid test tube provided by the utility model and it is dried with nitrogen instrument including it, can be blown in sample liquid by nitrogen
When lower liquid level, the nitrogen that can also accurately carry out observation sample liquid blows situation.
The above is only the preferred embodiments of the utility model, are not intended to limit the utility model, for this field
Technical staff for, various modifications and changes may be made to the present invention.Within the spirit and principle of the utility model,
Any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (10)
1. a kind of sample liquid test tube, which is characterized in that it includes the test tube body and partition with accommodating chamber, the partition setting
In in the test tube body for the accommodating chamber to be divided into the first accommodating chamber and the second accommodating chamber, second accommodating chamber position
In the side that first accommodating chamber is open far from test tube, the test tube body is logical equipped with what is be connected to second accommodating chamber
Hole.
2. sample liquid test tube according to claim 1, which is characterized in that the side that the partition is open to the separate test tube
It is prominent to form protruding portion, the inner wall interval setting of the protruding portion and second accommodating chamber.
3. sample liquid test tube according to claim 2, which is characterized in that the partition and the junction of the test tube body are set
For the first limit plane, it is that the test tube body, which correspond to maximum distance apart of the protruding portion far from the first limit plane,
Two limit planes, the first limit plane is parallel with the second limit plane, and the through-hole is set to first limit
Between plane and the second limit plane.
4. sample liquid test tube according to claim 3, which is characterized in that the tapered setting of protruding portion.
5. sample liquid test tube according to claim 3, which is characterized in that the protruding portion is multiple to protrude from the partition
Pipeline, the opening of the pipeline are connected to first accommodating chamber, and pipeline enclosure described in adjacent any two is every setting.
6. sample liquid test tube according to claim 1, which is characterized in that the test tube body corresponds to first accommodating chamber
Position is equipped with graduation apparatus, and the number mark of the graduation apparatus is by the laterally closer test tube opening close to the second accommodating chamber
Side becomes larger.
7. sample liquid test tube described in -6 any one according to claim 1, which is characterized in that the test tube body is close to the examination
One end of tube opening has dilatation portion, and the inner diameter in the dilatation portion is by being laterally away from the partition close to the one of the partition
Side become larger.
8. sample liquid test tube according to claim 7, which is characterized in that the dilatation portion is equipped with guiding groove, the guiding groove
Upper surface and the test tube opening flush, the depth of the guiding groove is from one end close to the test tube body to far from described
One end of test tube body gradually becomes smaller.
9. one kind is dried with nitrogen instrument, which is characterized in that including blowing needle, heating water bath mechanism and claim 1-8 any one
The sample liquid test tube, the blowing needle and the test tube are open to applied to the purging invisible spectro sample liquid, the test tube
It is set in the heating water bath mechanism.
10. according to claim 9 be dried with nitrogen instrument, which is characterized in that being dried with nitrogen instrument further includes ontology, the water-bath
Heating mechanism is set to the ontology, and the ontology is equipped with elevating mechanism, and the elevating mechanism connect with the blowing needle and is used for
It drives the blowing needle and the test tube to be open to cooperate, the blowing needle is communicated with gas cylinder by snorkel, and the snorkel is set
There is valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821228373.4U CN208520675U (en) | 2018-08-01 | 2018-08-01 | A kind of sample liquid test tube and it is dried with nitrogen instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821228373.4U CN208520675U (en) | 2018-08-01 | 2018-08-01 | A kind of sample liquid test tube and it is dried with nitrogen instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208520675U true CN208520675U (en) | 2019-02-19 |
Family
ID=65332854
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821228373.4U Expired - Fee Related CN208520675U (en) | 2018-08-01 | 2018-08-01 | A kind of sample liquid test tube and it is dried with nitrogen instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208520675U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115993284A (en) * | 2023-03-24 | 2023-04-21 | 成都圣恩生物科技股份有限公司 | Nitrogen blowing instrument |
-
2018
- 2018-08-01 CN CN201821228373.4U patent/CN208520675U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115993284A (en) * | 2023-03-24 | 2023-04-21 | 成都圣恩生物科技股份有限公司 | Nitrogen blowing instrument |
| CN115993284B (en) * | 2023-03-24 | 2023-05-30 | 成都圣恩生物科技股份有限公司 | Nitrogen blowing instrument |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107091767B (en) | Solid-phase microextraction sampling-thermal desorption method and device for water pollutants | |
| CN102680545B (en) | Test instrument for detecting electrolyte item and total carbon dioxide | |
| CN208520675U (en) | A kind of sample liquid test tube and it is dried with nitrogen instrument | |
| CN104075932B (en) | A kind of laser ablation sample room of many target position | |
| WO2021047537A1 (en) | Rotary evaporator for accurately and quantitatively recovering multiple solvents or concentrating multiple samples at one time | |
| CN103675082A (en) | Sample introduction device for improving detection sensitivity of ion mobility spectrometry (IMS) | |
| CN110132785B (en) | Adhesive or coating moisture and total volatile organic content rapid determination equipment | |
| US20230333132A1 (en) | Automatic sensor screening and detection device | |
| CN204287133U (en) | For detecting the device of organic compound concentrations in soil | |
| CN103252264A (en) | Multichannel liquid sample injector | |
| CN106645367A (en) | Online detector combining ultrasonic atomization and ion mobility spectrometry and application | |
| CN204255738U (en) | A kind of dual-purpose type Nitrogen evaporator | |
| CN113281444A (en) | Method for determining heavy metals in cosmetics by inductively coupled plasma mass spectrometer | |
| CN219532688U (en) | Nitrogen blowing instrument | |
| CN103792277A (en) | Laser dot type scanning oxygen-nitrogen-hydrogen-argon-helium determinater and laser dot type scanning oxygen-nitrogen-hydrogen-argon-helium determination method | |
| CN216727371U (en) | Test tube fixing mechanism for water bath nitrogen blowing instrument | |
| CN220590070U (en) | Laboratory no-pipeline drip | |
| CN206488981U (en) | Micro constant volume nitrogen evaporator | |
| CN213348940U (en) | Rotary evaporation constant volume device | |
| CN216012903U (en) | Quick sperm dyeing apparatus | |
| CN111257399A (en) | Direct mass spectrum detection device for high-throughput measurement of volatile organic compounds in blood | |
| JPS5742856A (en) | Absorbing and desorbing method for automatic chemical analytical apparatus | |
| CN215375341U (en) | Fast food inspection reagent box | |
| CN219551663U (en) | Multi-channel full-automatic quartz crystal microbalance testing instrument | |
| CN208399249U (en) | A kind of nitrogen evaporator containing special nozzle needle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210401 Address after: 325401 Building 1, No.1 square road, Binhai New Area, Pingyang County, Wenzhou City, Zhejiang Province Patentee after: Pingyang Institute of quality inspection and testing Address before: 325000 No.1, Guangchang Road, Binhai New Area, Pingyang County, Wenzhou City, Zhejiang Province Patentee before: Bao Zhongzan |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190219 Termination date: 20210801 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |