CN202372481U - Opposite-phase high performance liquid chromatography detection device for total nitrogen in sewage - Google Patents
Opposite-phase high performance liquid chromatography detection device for total nitrogen in sewage Download PDFInfo
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- CN202372481U CN202372481U CN 201120537655 CN201120537655U CN202372481U CN 202372481 U CN202372481 U CN 202372481U CN 201120537655 CN201120537655 CN 201120537655 CN 201120537655 U CN201120537655 U CN 201120537655U CN 202372481 U CN202372481 U CN 202372481U
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Abstract
An opposite-phase high performance liquid chromatography detection device for total nitrogen in sewage belongs to the technical field of water analysis. The detection device comprises a mobile phase memorizer, a vacuum degassing device, a gradient valve, a high pressure pump, a sample introduction device, a chromatographic column, an ultraviolet detector and a data output device which are sequentially connected, wherein the sample introduction device comprises a six-hole piece, a three-slot piece and a sample Loop, and the three-slot piece is provided with three arc-shaped grooves corresponding to the holes of the six-hole piece. During detection, mobile phase inside the mobile phase memorizer enters the sample introduction device through the high pressure pump after the degasification of the vacuum degassing device and the mixing of the gradient valve, and carries sewage sample to flow through the sample loop and enter into the chromatographic column and the ultraviolet detector to accomplish detection. According to the utility model, the detection data is accurate and reliable, further derivation is not required after the digestion of the total nitrogen in the sewage, the measuring can be directly performed, the measuring steps are simple, the operation is convenient, and the testing time is saved.
Description
Technical field
The utility model belongs to the water analysis technical field, relates to a kind of device of measuring total nitrogen in the sewage.
Background technology
Current, content of total nitrogen is an important indicator of a lot of industrial wastewater discharges in the sewage.Nitrogen in the water is divided into two types of organic nitrogen and inorganic nitrogens, and inorganic nitrogen exists with the form of ammonia nitrogen, nitrite nitrogen and nitre nitrogen, and the detection of total nitrogen is very important, is to prevent sewage pollution surface water and phreatic important step.
Existing total nitrogen detection method has Pbenoldisulfonic Acid AAS (GB 7480-87) and gas molecule in space absorption spectroscopy (HJ/T 198-2005), also has ultraviolet spectrophotometry (HJ/T 346-2007), the testing process complicated operation.
Summary of the invention
The technical matters that the utility model will solve provide a kind of easy to operate, measure result's RPLC pick-up unit of total nitrogen in the sewage accurately.
The scheme of the utility model technical solution problem is to adopt left storer, right storer, vacuum degasser, gradient valve, high-pressure pump, sampling device, chromatographic column, UV-detector and data output device to constitute the RPLC pick-up unit of total nitrogen in the sewage, and left storer is connected high-pressure pump with right storer through vacuum degasser and gradient valve, and high-pressure pump connects sampling device; Sampling device connects chromatographic column, and chromatographic column connects UV-detector, and UV-detector connects data output device; Wherein sampling device comprises six hole sheets, three slotted vanes and quantifying ring, and six hole sheets and three slotted vanes are corresponding round sheet body, and six hole sheets have six even distributions to be circular hole; Quantifying ring is a spiral pipe; The two ends of pipe connect the hole A and the hole D of six hole sheets respectively, and hole F connects high-pressure pump, and hole E connects chromatographic column; Hole C sealing; The upper surface of three slotted vanes has three equally distributed deep-slotted chip breakers, and deep-slotted chip breaker is corresponding with the hole of six hole sheets, and six hole sheets are fixed in the sampling device; Three slotted vanes are installed in the sampling device, and three slotted vane upper surfaces are close to below the six hole sheets.During detection, moving phase is put into left storer, standard solution is put into right storer; The interior vacuum degasser degassing of solution process and the gradient valve of left side storer and right storer mixes, and gets into sampling device through high-pressure pump, at this moment hole A and hole B, hole C and hole D, hole E and the hole F of three corresponding six hole sheets of deep-slotted chip breakers difference of three slotted vanes; Moving phase solution flows into chromatographic column and UV-detector through via hole A, deep-slotted chip breaker and hole B; Hole B to six hole sheets injects sewage sample, gets into A position, hole through deep-slotted chip breaker, rotates three slotted vanes; Hole F and hole A are communicated with; Hole D and hole E are communicated with, and moving phase is carried the sewage sample quantifying ring of flowing through and got into chromatographic column and UV-detector, and the result after the detection shows through data output device.
The utility model detects data accurately and reliably, and the total nitrogen in the sewage does not need further to derive through after digesting, and can directly measure, and determination step is simple, and is easy to operate, saves the test duration.
Description of drawings
Fig. 1 the utility model synoptic diagram;
Fig. 2 is six hole sheet synoptic diagram;
Fig. 3 is three slotted vane synoptic diagram.
Embodiment
The utility model is made up of left storer 1, right storer 2, vacuum degasser 3, gradient valve 4, high-pressure pump 5, sampling device 6, chromatographic column 7, UV-detector 8 and data output device 9, and left storer 1 is connected high-pressure pump 5 with right storer 2 through vacuum degasser 3 and gradient valve 4, and high-pressure pump 5 connects sampling devices 6; Sampling device 6 connects chromatographic column 7, and chromatographic column 7 connects UV-detector 8, and UV-detector 8 connects data output device 9; Wherein sampling device 6 comprises that six hole sheets 10, three slotted vanes 11 and quantifying ring 12, six hole sheets 10 and three slotted vanes 11 are corresponding round sheet body, and six hole sheets 10 have six evenly to distribute and be circular hole; Quantifying ring 12 is a spiral pipe; The two ends of pipe connect the hole A and the hole D of six hole sheets 10 respectively, and hole F connects high-pressure pump 5, and hole E connects chromatographic column 7; Hole C sealing; The upper surface of three slotted vanes 11 has three equally distributed deep-slotted chip breakers 13, and deep-slotted chip breaker 13 is corresponding with the hole of six hole sheets 10, and six hole sheets 10 are fixed in the sampling device 6; Three slotted vanes 11 are installed in the sampling device 6, and three slotted vanes, 11 upper surfaces are close to below the six hole sheets 10.
Claims (1)
1. the RPLC pick-up unit of total nitrogen in the sewage, it is characterized in that: it is made up of left storer, right storer, vacuum degasser, gradient valve, high-pressure pump, sampling device, chromatographic column, UV-detector and data output device, and left storer is connected high-pressure pump with right storer through vacuum degasser and gradient valve; High-pressure pump connects sampling device, and sampling device connects chromatographic column, and chromatographic column connects UV-detector; UV-detector connects data output device, and wherein sampling device comprises six hole sheets, three slotted vanes and quantifying ring, and six hole sheets and three slotted vanes are corresponding round sheet body; Six hole sheets have six even distributions to be circular hole, and quantifying ring is a spiral pipe, and the two ends of pipe connect the hole A and the hole D of six hole sheets respectively; Hole F connects high-pressure pump; Hole E connects chromatographic column, hole C sealing, and the upper surface of three slotted vanes has three equally distributed deep-slotted chip breakers; Deep-slotted chip breaker is corresponding with the hole of six hole sheets; Six hole sheets are fixed in the sampling device, and three slotted vanes are installed in the sampling device, and three slotted vane upper surfaces are close to below the six hole sheets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120537655 CN202372481U (en) | 2011-12-21 | 2011-12-21 | Opposite-phase high performance liquid chromatography detection device for total nitrogen in sewage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120537655 CN202372481U (en) | 2011-12-21 | 2011-12-21 | Opposite-phase high performance liquid chromatography detection device for total nitrogen in sewage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202372481U true CN202372481U (en) | 2012-08-08 |
Family
ID=46596178
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120537655 Expired - Fee Related CN202372481U (en) | 2011-12-21 | 2011-12-21 | Opposite-phase high performance liquid chromatography detection device for total nitrogen in sewage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202372481U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112798582A (en) * | 2021-01-21 | 2021-05-14 | 上海菁一科技有限公司 | Sewage detection method and application |
-
2011
- 2011-12-21 CN CN 201120537655 patent/CN202372481U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112798582A (en) * | 2021-01-21 | 2021-05-14 | 上海菁一科技有限公司 | Sewage detection method and application |
| CN112798582B (en) * | 2021-01-21 | 2023-03-21 | 上海菁一科技有限公司 | Sewage detection method and application |
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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: 20120808 Termination date: 20121221 |