CN208526665U - A kind of pipettor for Fast Determination of Pesticide Residue - Google Patents
A kind of pipettor for Fast Determination of Pesticide Residue Download PDFInfo
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- CN208526665U CN208526665U CN201821261915.8U CN201821261915U CN208526665U CN 208526665 U CN208526665 U CN 208526665U CN 201821261915 U CN201821261915 U CN 201821261915U CN 208526665 U CN208526665 U CN 208526665U
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- Prior art keywords
- pipettor
- head
- fluid suction
- pesticide residue
- sieve plate
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Abstract
A kind of pipettor for Fast Determination of Pesticide Residue, is related to Detecting Pesticide field, solves the problems, such as that the liquid relief tool for being currently used for Fast Determination of Pesticide Residue still results in Detecting Pesticide accuracy.The pipettor: the upper port of suction pipe is connected with pipettor ontology, and the lower port of suction pipe is arranged in end cap.Fluid suction head is identical as the structure of drainage head.Fluid suction head is the radially projecting pipe fitting in middle part, is provided with filter element in the protruding portion of fluid suction head, and filter element includes upper sieve plate, lower sieve plate and positioned at solid-phase adsorbent between the two.The upper port of fluid suction head and the upper port of drainage head are arranged on the bottom plate of end cap, and are connected with the inner space of end cap.When the pipettor carries out imbibition operation, blanking cover is used to block the lower port of drainage head.When the pipettor carries out drain operation, blanking cover is used to block the lower port of fluid suction head.Quick detection of the pipettor described in the utility model especially suitable for pesticide residue.
Description
Technical field
The utility model relates to a kind of pipettors, are related to Detecting Pesticide field.
Background technique
Authorization Notice No. be the utility model patent of 203044027 U of CN disclose it is a kind of it is being used cooperatively with pipettor,
Suction pipe for Fast Determination of Pesticide Residue.The suction pipe isolates and purifies ability with excellent, by making containing interfering substance
Sample solution is contacted with solid-phase adsorbent, is adsorbed on interfering substance on solid-phase adsorbent, in the process for drawing and being discharged solution
In, purifying twice is carried out to solution, with it is efficient, quickly and easily obtain sample extracting solution.
However, the suction pipe but has the following problems in use:
Original interference in sample solution when suction pipe has drawn sample solution, between lower sieve plate and suction nozzle tip
Substance is simultaneously unadsorbed.In addition to this, during purifying body to sample solution progress first time purifying, by lower sieve plate
The interfering substance filtered out can be attached on the bottom surface of lower sieve plate and enter the script between lower sieve plate and suction nozzle tip
It is just mixed in the sample solution of interfering substance.When sample solution is discharged in suction pipe, the sample solution containing interfering substance can be advanced
Enter in the sense channel of rapid detector for pesticide residue.Therefore, into the sample in the sense channel of rapid detector for pesticide residue
Still more interfering substance is mixed in product solution, this reduces the accuracy of Detecting Pesticide to a certain extent.
Utility model content
The utility model is to solve to be currently used for the liquid relief tool of Fast Determination of Pesticide Residue to still result in pesticide residue
The problem of accuracy in detection reduces, proposes a kind of pipettor for Fast Determination of Pesticide Residue.
Pipettor described in the utility model for Fast Determination of Pesticide Residue includes pipettor ontology, suction pipe 1, end cap
2, fluid suction head 3, drainage head 4 and blanking cover 5；
The upper port of suction pipe 1 is connected with pipettor ontology, and the lower port of suction pipe 1 is arranged in end cap 2；
Fluid suction head 3 is identical as the structure of drainage head 4；
Fluid suction head 3 is the radially projecting pipe fitting in middle part, and filter element is provided in the protruding portion of fluid suction head 3, and filtering is single
Member is including upper sieve plate 6, lower sieve plate 7 and positioned at solid-phase adsorbent 8 between the two；
The upper port of fluid suction head 3 and the upper port of drainage head 4 are arranged on the bottom plate of end cap 2, and interior with end cap 2
Portion space is connected；
When the pipettor carries out imbibition operation, blanking cover 5 is used to block the lower port of drainage head 4；
When the pipettor carries out drain operation, blanking cover 5 is used to block the lower port of fluid suction head 3.
As preferably, suction pipe 1 is threadedly coupled with end cap 2.
As preferably, blanking cover 5 is threadedly coupled with fluid suction head 3 or drainage head 4.
As preferably, the lower port of fluid suction head 3 is sharp mouth.
As preferably, upper sieve plate 6 and lower sieve plate 7 are polyethylene sieve plate.
As preferably, solid-phase adsorbent 8 is titanium dioxide, the granularity of titanium dioxide be greater than upper sieve plate 6 screen-aperture and
The screen-aperture of lower sieve plate 7.
Pipettor described in the utility model for Fast Determination of Pesticide Residue uses before pipette samples solution
Blanking cover blocks the lower port of drainage head, to prevent sample solution from entering in suction pipe through drainage head.Sample solution through fluid suction head into
During entering suction pipe, the filter element in fluid suction head carries out first time purifying to sample solution.In discharge sample solution
When, the lower port of fluid suction head is blocked using blanking cover, so that the sample solution in suction pipe after first time purifying is through drainage head
It enters in the sense channel of rapid detector for pesticide residue, the filter element in drainage head is used for through first time purifying
Sample solution afterwards carries out second of purifying.Therefore, with the existing liquid relief tool phase for Fast Determination of Pesticide Residue
Than when carrying out the quick detection of pesticide residue using pipettor described in the utility model, into Fast Determination of Pesticide Residue
Sample solution in the sense channel of instrument contains relatively small number of interfering substance, and then Detecting Pesticide is effectively promoted
Accuracy.
Detailed description of the invention
Hereinafter the pesticide residue described in the utility model that is used for quickly will be examined based on the embodiments and with reference to the accompanying drawings
The pipettor of survey is described in more detail, in which:
Fig. 1 is the installation diagram of suction pipe, end cap, fluid suction head, drainage head and blanking cover that embodiment refers to.
Specific embodiment
The pipettor described in the utility model for Fast Determination of Pesticide Residue is made below in conjunction with attached drawing further
Explanation.
Embodiment: the present embodiment is explained in detail below with reference to Fig. 1.
Described in the present embodiment for Fast Determination of Pesticide Residue pipettor include pipettor ontology, suction pipe 1, end cap 2,
Fluid suction head 3, drainage head 4 and blanking cover 5；
The upper port of suction pipe 1 is connected with pipettor ontology, and the lower port of suction pipe 1 is arranged in end cap 2；
Fluid suction head 3 is identical as the structure of drainage head 4；
Fluid suction head 3 is the radially projecting pipe fitting in middle part, and filter element is provided in the protruding portion of fluid suction head 3, and filtering is single
Member is including upper sieve plate 6, lower sieve plate 7 and positioned at solid-phase adsorbent 8 between the two；
The upper port of fluid suction head 3 and the upper port of drainage head 4 are arranged on the bottom plate of end cap 2, and interior with end cap 2
Portion space is connected；
When the pipettor carries out imbibition operation, blanking cover 5 is used to block the lower port of drainage head 4；
When the pipettor carries out drain operation, blanking cover 5 is used to block the lower port of fluid suction head 3.
The suction pipe 1 of the present embodiment is threadedly coupled with end cap 2.
The blanking cover 5 of the present embodiment is threadedly coupled with fluid suction head 3 or drainage head 4.
The lower port of the fluid suction head 3 of the present embodiment is sharp mouth.
The upper sieve plate 6 of the present embodiment and lower sieve plate 7 are polyethylene sieve plate.
The solid-phase adsorbent 8 of the present embodiment is titanium dioxide, and the granularity of titanium dioxide is greater than the screen-aperture and lower sieve of upper sieve plate 6
The screen-aperture of plate 7.
Although describing the utility model herein with reference to specific embodiment, it should be understood that, this
A little embodiments are only the examples of the principles of the present invention and application.It should therefore be understood that can implement to illustrative
Example carries out many modifications, and can be designed that other arrangements, practical without departing from sheet as defined in the appended claims
Novel spirit and scope.It should be understood that can be combined not by being different from mode described in original claim
Same dependent claims and feature described herein.It will also be appreciated that combining feature described in separate embodiments
It can be used in other embodiments.
Claims (6)
1. a kind of pipettor for Fast Determination of Pesticide Residue, which is characterized in that the pipettor includes pipettor ontology, inhales
Manage (1), end cap (2), fluid suction head (3), drainage head (4) and blanking cover (5)；
The upper port of suction pipe (1) is connected with pipettor ontology, and the lower port setting of suction pipe (1) is in end cap (2)；
Fluid suction head (3) is identical as the structure of drainage head (4)；
Fluid suction head (3) is the radially projecting pipe fitting in middle part, and filter element is provided in the protruding portion of fluid suction head (3), and filtering is single
Member includes upper sieve plate (6), lower sieve plate (7) and positioned at solid-phase adsorbent (8) between the two；
The upper port of fluid suction head (3) and the upper port of drainage head (4) are arranged on the bottom plate of end cap (2), and with end cap (2)
Inner space be connected；
When the pipettor carries out imbibition operation, blanking cover (5) is used to block the lower port of drainage head (4)；
When the pipettor carries out drain operation, blanking cover (5) is used to block the lower port of fluid suction head (3).
2. being used for the pipettor of Fast Determination of Pesticide Residue as described in claim 1, which is characterized in that suction pipe (1) and end cap
(2) it is threadedly coupled.
3. being used for the pipettor of Fast Determination of Pesticide Residue as claimed in claim 2, which is characterized in that blanking cover (5) and imbibition
Head (3) or drainage head (4) are threadedly coupled.
4. being used for the pipettor of Fast Determination of Pesticide Residue as claimed in claim 3, which is characterized in that under fluid suction head (3)
Port is sharp mouth.
5. as claimed in claim 4 be used for Fast Determination of Pesticide Residue pipettor, which is characterized in that upper sieve plate (6) and under
Sieve plate (7) is polyethylene sieve plate.
6. being used for the pipettor of Fast Determination of Pesticide Residue as claimed in claim 5, which is characterized in that solid-phase adsorbent (8)
Granularity for titanium dioxide, titanium dioxide is greater than the screen-aperture of upper sieve plate (6) and the screen-aperture of lower sieve plate (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821261915.8U CN208526665U (en) | 2018-08-03 | 2018-08-03 | A kind of pipettor for Fast Determination of Pesticide Residue |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821261915.8U CN208526665U (en) | 2018-08-03 | 2018-08-03 | A kind of pipettor for Fast Determination of Pesticide Residue |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208526665U true CN208526665U (en) | 2019-02-22 |
Family
ID=65377813
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821261915.8U Active CN208526665U (en) | 2018-08-03 | 2018-08-03 | A kind of pipettor for Fast Determination of Pesticide Residue |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208526665U (en) |
-
2018
- 2018-08-03 CN CN201821261915.8U patent/CN208526665U/en active Active
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