CN202339348U - Sample introduction device - Google Patents
Sample introduction device Download PDFInfo
- Publication number
- CN202339348U CN202339348U CN2011201595463U CN201120159546U CN202339348U CN 202339348 U CN202339348 U CN 202339348U CN 2011201595463 U CN2011201595463 U CN 2011201595463U CN 201120159546 U CN201120159546 U CN 201120159546U CN 202339348 U CN202339348 U CN 202339348U
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- CN
- China
- Prior art keywords
- selector valve
- sample introduction
- introduction device
- channel selector
- liquid level
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- 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
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Abstract
The utility model discloses a sample introduction device. The sample introduction device comprises reagent bottles, a multi-channel selector valve and an injection pump which are sequentially connected; the reagent bottles actually are standard solution bottles and sampling bottles for mercury, chromium, cadmium, lead and arsenic and are respectively and independently connected with ports of the multi-channel selector valve; the sample introduction device further comprises a full-light liquid level quantitative device which consists of a quantitative pipe and a correlation type LED; and the multi-channel selector valve is connected with the quantitative pipe connected with the injection pump. According to the sample introduction device, the injection pump is used for providing power for sample introduction and sample discharge; the multi-channel selector valve is the flow path among which the water samples in the reagent bottles are switched, and a residual dead zone is avoided; and the full-light liquid level quantitative device is a heavy metal detecting instrument detecting system which can provide synchronous and distortionless water samples and ensure the measuring accuracy and efficiency.
Description
Technical field
The utility model relates to a kind of automatic sampling apparatus, in particular for the automatic sampling apparatus of the water sample in the heavy metal detecting instrument of water body with mark liquid.
Background technology
At present the conventional sample introduction quantitative manner of heavy metal checkout equipment is the peristaltic pump timing mode, and this mode is understood increasingly along with the aging sample introduction error of the use of peristaltic pump and pump line, and very big defective is arranged on sample introduction precision and repeatability.In addition; For the detection of water quality heavy metal, before each the detection water sample of prescribed volume is delivered in the analytical instrument sample chamber is to guarantee to analyze prerequisite accurately at every turn, like fruit volume greater than the setting volume; The ability that sensor detects certainly will be bigger than normal; The concentration of convert is corresponding bigger than normal, otherwise then less than normal, so accurately whether the sample presentation precision has determined analyser from the source analysis result.
Summary of the invention
The purpose of the utility model is to overcome the deficiency of above-mentioned existence, provides a kind of sample introduction to repeat the accurate automatic sampling apparatus of pump pressure.
The purpose of the utility model is accomplished through following technical scheme; A kind of sampling device; Comprise the reagent bottle, hyperchannel selector valve and the syringe pump that connect successively, said reagent bottle is divided into mercury, chromium, cadmium, lead, arsenic five kinds of marks liquid bottle and sampling jar, and said six kinds of reagent bottles are connected separately with each port of hyperchannel selector valve respectively; Sampling device also comprises full light liquid level proportioning device; This full light liquid level proportioning device is by quantity tube and be attached thereto the correlation LED that connects and form, and said hyperchannel selector valve connects this quantity tube, and this quantity tube connects syringe pump.
The utility model provides sample introduction and stock layout driving source by syringe pump, and the hyperchannel selector valve is to switch stream between reagent bottle sample water sample, has avoided residual dead band.Simultaneously, full light liquid level proportioning device adopts quantity tube to connect the structure of correlation LED, and quantity tube uses glass tube to be carrying object; Utilize correlation LED liquid level accurately to be located in the voltage difference of blank pipe when having flow of liquid to cross glass tube; Thereby the volume of FEEDBACK CONTROL syringe pump negative pressure pump suction appearance, the metal detection of attaching most importance to instrument detection system provides synchronous, distortionless water sample, guarantees measuring accuracy and efficient; Can effectively eliminate simultaneously the interference of bubble impurity etc., precision can reach 1uL.
Description of drawings
Fig. 1 is the structural representation of each module of the utility model.
Embodiment
To combine accompanying drawing that the utility model is done detailed introduction below:
As shown in Figure 1: a kind of sampling device; Constitute by the reagent bottle 1 that connects successively, hyperchannel selector valve 2, full light liquid level proportioning device and syringe pump 3; Reagent bottle is divided into mercury, chromium, cadmium, lead, arsenic five kinds of marks liquid bottle and sampling jar, and hyperchannel selector valve 2 each port are connected separately with six kinds of reagent bottles respectively, the correlation LED5 that full light liquid level proportioning device comprises quantity tube 4 and is connected; The hyperchannel selector valve connects this quantity tube, and this quantity tube connects syringe pump.The syringe pump pump housing adopts the quartz glass of antifriction, and piston adopts the structure of teflon and O type circle, makes the reciprocal life-span can reach more than 100,000 times, need not change piston in two years under the normal operating position.The hyperchannel selector valve adopts special ring shooting mode, and public flow pipeline portions adopts corrosion resistant PFA material and liquid pore structure, makes to have prevented the cross pollution of liquid in the noresidue dead band.
The utility model provides sample introduction and stock layout driving source by syringe pump, and the hyperchannel selector valve is to switch stream between reagent bottle sample water sample, has avoided residual dead band.Simultaneously, full light liquid level proportioning device adopts quantity tube to connect the structure of correlation LED, and quantity tube uses glass tube to be carrying object; Utilize correlation LED liquid level accurately to be located in the voltage difference of blank pipe when having flow of liquid to cross glass tube; Thereby the volume of FEEDBACK CONTROL syringe pump negative pressure pump suction appearance, the metal detection of attaching most importance to instrument detection system provides synchronous, distortionless water sample, guarantees measuring accuracy and efficient; Can effectively eliminate simultaneously the interference of bubble impurity etc., precision can reach 1uL.
Claims (1)
1. sampling device; Comprise the reagent bottle, hyperchannel selector valve and the syringe pump that connect successively; It is characterized in that: said reagent bottle is divided into mercury, chromium, cadmium, lead, arsenic five kinds of marks liquid bottle and sampling jar; Said six kinds of reagent bottles are connected separately with each port of hyperchannel selector valve respectively, and sampling device also comprises full light liquid level proportioning device, and this full light liquid level proportioning device is by quantity tube and be attached thereto the correlation LED that connects and form; Said hyperchannel selector valve connects this quantity tube, and this quantity tube connects syringe pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201595463U CN202339348U (en) | 2011-05-17 | 2011-05-17 | Sample introduction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201595463U CN202339348U (en) | 2011-05-17 | 2011-05-17 | Sample introduction device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202339348U true CN202339348U (en) | 2012-07-18 |
Family
ID=46488039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201595463U Expired - Fee Related CN202339348U (en) | 2011-05-17 | 2011-05-17 | Sample introduction device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202339348U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104914198A (en) * | 2014-03-11 | 2015-09-16 | 上海兰博贸易有限公司 | Automatic gas sample injection apparatus and use method thereof |
| CN109342417A (en) * | 2018-11-29 | 2019-02-15 | 深圳市丹耐美克环保科技有限责任公司 | Arsenic content detection device and method in a kind of water sample |
-
2011
- 2011-05-17 CN CN2011201595463U patent/CN202339348U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104914198A (en) * | 2014-03-11 | 2015-09-16 | 上海兰博贸易有限公司 | Automatic gas sample injection apparatus and use method thereof |
| CN109342417A (en) * | 2018-11-29 | 2019-02-15 | 深圳市丹耐美克环保科技有限责任公司 | Arsenic content detection device and method in a kind of water sample |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120718 Termination date: 20130517 |