CN206074434U - Suitable for the nh 3-n analyser of multi-field sample detection - Google Patents
Suitable for the nh 3-n analyser of multi-field sample detection Download PDFInfo
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- CN206074434U CN206074434U CN201620999829.1U CN201620999829U CN206074434U CN 206074434 U CN206074434 U CN 206074434U CN 201620999829 U CN201620999829 U CN 201620999829U CN 206074434 U CN206074434 U CN 206074434U
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Abstract
This utility model is related to a kind of nh 3-n analyser suitable for multi-field sample detection, including：Sample feeding device, reaction reagent storage container and delivery pump, the nh 3-n analyser are further included：The quantitative module of volume-tunable, the quantitative module connect the sample feeding device, and are carried out quantitatively according to testing sample switching determined volume；Handover module, the handover module are connected with the quantitative module and are arranged on the downstream flow path of the quantitative module；Dialysis module, the dialysis module are connected with handover module, and the handover module connects analysis channel with causing the dialysis module selective；Analysis channel, the analysis channel include response system and detecting system, the analysis channel only.This utility model has simple structure, low cost, easy to operate, the advantages of sample is applied widely.
Description
Technical field
This utility model is related to nitrogen analysis field, more particularly to a kind of flowing suitable for different field sample detection
Injection nh 3-n analyser.
Background technology
Country is very big for the regulation difference of nitrogen element content limit value in the sample of different field, or even has many in not
The same order of magnitude.Therefore, the sample of different field is detected using the analysis channel of multiple different detection ranges at present, such as
In determining environmental water sample, ammonia nitrogen adopts detection range complete in the ammonia nitrogen analysis channel of 0～2mg/L (in terms of N), measure soil
Nitrogen adopts detection range in the full nitrogen analysis passage of 0.1～20mg/L (in terms of N), and in determining fertilizer, kjeldahl nitrogen adopts detection range
In the kjeldahl nitrogen analysis channel of 50～600mg/L (in terms of N).However, detection tool is carried out to multi-field sample by multiple passages
There is following defect：
1. different field sample detection, high cost, instrument body are carried out using different analysis channels, namely multiple stage analytical tool
Product is big, floor space is wide；
2. because in different field sample nitrogen concentration it is widely different, therefore detection stream and reagent in different passage are dense
Degree has differences, and for the sample detection of different field, needs manual replacing to detect stream, in addition it is also necessary to prepare the anti-of variable concentrations
Answer reagent, operation inconvenience, waste time and energy, it is extremely inefficient；And reaction reagent has toxicity, it is easily right that operator frequently prepare
Body works the mischief.
Utility model content
In order to solve the deficiency in above-mentioned prior art, this utility model provides a kind of simple structure, low cost,
Easy to operate, efficiency high, safe, sample is applied widely, only one analysis channel and examines suitable for multi-field sample
The nh 3-n analyser of survey.
The purpose of this utility model is achieved through the following technical solutions：
A kind of nh 3-n analyser suitable for multi-field sample detection, including：Sample feeding device, reaction reagent storage are held
Device and delivery pump, the nh 3-n analyser are further included：
The quantitative module of volume-tunable, the quantitative module connect the sample feeding device, and are cut according to testing sample
Changing determined volume is carried out quantitatively；
Handover module, the handover module are connected with the quantitative module and are arranged on the downstream stream of the quantitative module
Road；
Dialysis module, the dialysis module are connected with handover module, and the handover module causes the dialysis module to select
Property ground connection analysis channel；
Analysis channel, the analysis channel include response system and detecting system, the analysis channel only.
According to above-mentioned nh 3-n analyser, it is preferable that the quantitative module includes：Proportional valve, at least two different basis weights
The quantitative loop of volume and at least two coupled respectively three-position valves.
According to above-mentioned nh 3-n analyser, alternatively, the proportional valve is six valves.
According to above-mentioned nh 3-n analyser, alternatively, the handover module is four-way revolving valve.
According to above-mentioned nh 3-n analyser, it is preferable that the dialysis module is provided with four interfaces, four interfaces its
The one connection quantitative module, its described response system of two connections, its tee joint dilute solution storage container, which four is waste discharge
Mouthful, the dilute solution does not contain test substance and does not affect sample detection.
According to above-mentioned nh 3-n analyser, it is preferable that the dilute solution is buffer solution.
According to above-mentioned nh 3-n analyser, alternatively, the reaction reagent storage container at least four is respectively used to hold
Current-carrying solution, buffer solution, the first developer and the second developer.
According to above-mentioned nh 3-n analyser, alternatively, the current-carrying solution is deionized water, and buffer solution is Soluble tartar.
The mixed solution of sodium and sodium citrate, the first developer are the mixed solution of sodium salicylate and sodium nitroprusside, and the second developer is two
Symclosene sodium solution.
According to above-mentioned nh 3-n analyser, it is preferable that the delivery pump is provided with least six roots of sensation pump line, test sample is treated for conveying
Product and reaction reagent.
According to above-mentioned nh 3-n analyser, alternatively, the delivery pump is peristaltic pump.
Compared with prior art, this utility model have the advantage that for：
1st, this utility model utilizes Flow Injection Technique, using an instrument (analysis channel) realize different field,
The detection of variable concentrations sample, apparatus structure is simple, small volume, and easy to operate, efficiency high greatly reduces cost；
2nd, this utility model passes through the cooperation of two three-position valves and proportional valve, realizes the automatic of different volumes sample amounts ring
Switching so that the reaction reagent of same concentration is applied to the sample detection of different field, without the need for frequently preparing reaction reagent, improves
Efficiency, ensures the safety of operator；
3rd, introducing of this utility model by handover module, realizes the break-make of dialysis module and analysis channel, expands and treat
The concentration range of test sample product.
Description of the drawings
Fig. 1 is the structural representation of the nh 3-n analyser of this utility model embodiment 1.
Specific embodiment
Fig. 1 and following description describe optional embodiment of the present utility model to instruct those skilled in the art how real
Apply and reproduce this utility model.In order to instruct technical solutions of the utility model, some conventional aspects are simplified or have eliminated.Ability
Field technique personnel should be appreciated that from these embodiments modification or replacement will be in the range of this utility model.This area skill
Art personnel should be appreciated that following characteristics can combine to form multiple modifications of the present utility model in a variety of ways.Thus, this reality
Following embodiments are not limited to new, and are only limited by claim and their equivalent.
Embodiment 1
Fig. 1 schematically illustrates the structure letter of the nh 3-n analyser suitable for multi-field sample detection of the present embodiment
Figure, as shown in figure 1, the nh 3-n analyser includes：
Sample feeding device, reaction reagent storage container and delivery pump, the reaction reagent storage container are current-carrying solution
Storage container, buffer solution storage container, the first developer storage container and the second developer storage container, the delivery pump set
There is six roots of sensation pump line, be respectively used to convey testing sample and reaction reagent, wherein, buffer solution storage container and two pump line phases
Even；
The quantitative module of volume-tunable, the quantitative module connect the sample feeding device, and are cut according to testing sample
Changing determined volume is carried out quantitatively；
Handover module, the handover module are connected with the quantitative module and are arranged on the downstream stream of the quantitative module
Road；
Dialysis module, the dialysis module are connected with handover module, and the handover module causes the dialysis module to select
Property ground connection analysis channel；
Analysis channel, the analysis channel include response system and detecting system, the analysis channel only.
Above-mentioned response system and analysis system are the state of the art, be will not be described here.
Nitrogen element content difference in different field testing sample is very big, in order to improve the scope of application of reaction reagent, makes
Without the need for preparing again reaction reagent when must change testing sample, therefore, the nh 3-n analyser of the present embodiment is provided with volume-tunable
Quantitative module, preferably, the quantitative module includes：The quantitative loop and difference of proportional valve, at least two different basis weights volumes
At least two three-position valves being connected with the quantitative loop.
Meanwhile, in order to expand the detection range of nh 3-n analyser, the nh 3-n analyser of the present embodiment is provided with dialysis module, institute
State dialysis module to be joined directly together with the handover module in analysis channel；
Further, the dialysis module is provided with four interfaces, and the one of four interfaces connects the quantitative module,
Its described response system of two connections, its tee joint dilute solution, which four is waste discharge mouth, the cleaning liquid do not contain test substance and
Sample detection is not affected.
For the Matrix Match degree in improving subsequent reactions, detection process, simplify apparatus structure, therefore：
Further, the dilute solution is buffer solution, an interface and the buffer solution storage container of module of dialysing
It is connected.
The nh 3-n analyser of the present embodiment is using the salicylic acid spectrophotography that reagent is comparatively safe, environmental pollution is little
Sample detection is carried out, therefore：
Further, the current-carrying solution is deionized water, and buffer solution is the mixing of sodium potassium tartrate tetrahydrate and sodium citrate
Solution, the first developer are the mixed solution of sodium salicylate and sodium nitroprusside, and the second developer is sodium dichloro cyanurate solution.
Advantage of this embodiment is that：Using Flow Injection Technique, by two three-position valves, the cooperation of proportional valve and cut
The introducing of mold changing block, dialysis module, realizes the automatic detection of different field, variable concentrations sample in an analysis channel, right
Different field sample need not prepare the reaction reagent of variable concentrations, apparatus structure is simple, small volume, applied widely, operation side
Just and safe, efficiency high, low cost.
Embodiment 2
The nh 3-n analyser of this utility model embodiment 1 is in water, in soil and Nitrogen elementary analysiss field should
Use-case.
In the application examples, sample feeding device is automatic sampler, and the automatic sampler includes：Specimen disc, placement
The test tube of testing sample, draws sampling needle, the sampling arm of mobile sampling needle, the sampling needle and the sample capillary tube of testing sample
Testing sample is transported to quantitative module by the sample pump line of peristaltic pump by connection；The quantitative module include proportional valve, two
The quantitative loop of three-position valve and two different volumes, the proportional valve are six valves, and with six interfaces of A, B, C, D, E, F, A mouths are
Waste discharge mouth, is connected with waste liquid bottle, and B mouths connect a three-position valve, and E mouths connect another three-position valve, two different volumes it is quantitative
Ring connects two three-position valves and two quantitative loop parallel connections, C mouths connection handover module, D mouths connection current-carrying solution, the connection of F mouths is treated
Test sample product；Handover module is four-way revolving valve, is provided with four interfaces, wherein two adjacent interfaces connect dialysis module respectively
One entrance and one outlet, two other interface connect proportional valve and response system；Dialysis module is by upper and lower two briquetting groups
Into, it is interior to carve snakelike pipeline, dialyzer is provided between described two briquettings, another entrance and buffer solution phase of module of dialysing
Even, another outlet is connected with waste liquid bottle；Response system includes that the first connector being sequentially connected, the first blender, second connect
Fitting, the second blender, the 3rd connector and constant temperature mixer, first connector, the second connector and the 3rd connector
Three way cock is, another entrance of the first connector connects buffer solution storage container, and another of the second connector enters
Mouth the first developer storage container of connection, another entrance of the 3rd connector connect second developer storage container；The inspection
Examining system includes light path system and the circulation detecting pool being placed in light path system, the light path 10mm of the circulation detecting pool, thoroughly
Light diameter 3mm, is provided with waste discharge mouth and is connected with waste liquid bottle.
In water, nitrogen is present with ammonia nitrogen form, and Nitrogen In Soils element is present with full nitrogen form, and Nitrogen element is with triumphant
Family name's nitrogen form is present, therefore, before being analyzed using the nh 3-n analyser of the present embodiment, need first pedotheque and fertilizer
Material sample carries out pretreatment, forms the sample solution of ammonia nitrogen form.
Additionally, also needing to prepare reaction reagent, the inspection in the application examples, to three kinds of different field samples before detection
Survey, it is only necessary to prepare the reaction reagent of same concentrations, i.e.,：Current-carrying solution is deionized water；Winestone of the buffer solution for pH5.2
Sour potassium sodium (35g/l) and the mixed solution of sodium citrate (25g/l)；First developer is sodium salicylate (80g/l) and sodium nitroprusside
(5g/l) mixed solution；Solution of second developer for sodium dichloro cyanurate (5g/l).
Claims (10)
1. a kind of nh 3-n analyser suitable for multi-field sample detection, including：Sample feeding device, reaction reagent storage container
And delivery pump, it is characterised in that：The nh 3-n analyser is further included：
The quantitative module of volume-tunable, the quantitative module connect the sample feeding device, and fixed according to testing sample switching
Amount volume is carried out quantitatively；
Handover module, the handover module are connected with the quantitative module and are arranged on the downstream flow path of the quantitative module；
Dialysis module, the dialysis module are connected with handover module, and the handover module causes the dialysis module selective ground
Connection analysis channel；
Analysis channel, the analysis channel include response system and detecting system, the analysis channel only.
2. nh 3-n analyser according to claim 1, it is characterised in that：The quantitative module includes：Proportional valve, at least two
The quantitative loop of individual different basis weights volume and at least two coupled respectively three-position valves.
3. nh 3-n analyser according to claim 2, it is characterised in that：The proportional valve is six valves.
4. nh 3-n analyser according to claim 1, it is characterised in that：The handover module is four-way revolving valve.
5. nh 3-n analyser according to claim 1, it is characterised in that：The dialysis module is provided with four interfaces, described
The one of four interfaces connects the quantitative module, its described response system of two connections, its tee joint dilute solution storage container,
Which four is waste discharge mouth, and the dilute solution is not contained test substance and does not affect sample detection.
6. nh 3-n analyser according to claim 5, it is characterised in that：The dilute solution is buffer solution.
7. nh 3-n analyser according to claim 6, it is characterised in that：The reaction reagent storage container at least four,
It is respectively used to hold current-carrying solution, buffer solution, the first developer and the second developer.
8. nh 3-n analyser according to claim 7, it is characterised in that：The current-carrying solution is deionized water, is buffered molten
Liquid is the mixed solution of sodium potassium tartrate tetrahydrate and sodium citrate, and the first developer is the mixed solution of sodium salicylate and sodium nitroprusside, the
Two developers are sodium dichloro cyanurate solution.
9. nh 3-n analyser according to claim 1, it is characterised in that：The delivery pump is provided with least six roots of sensation pump line, uses
In conveying testing sample and reaction reagent.
10. nh 3-n analyser according to claim 9, it is characterised in that：The delivery pump is peristaltic pump.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620999829.1U CN206074434U (en) | 2016-08-30 | 2016-08-30 | Suitable for the nh 3-n analyser of multi-field sample detection |
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| CN201620999829.1U CN206074434U (en) | 2016-08-30 | 2016-08-30 | Suitable for the nh 3-n analyser of multi-field sample detection |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110780015A (en) * | 2018-07-31 | 2020-02-11 | 西安市宇驰检测技术有限公司 | Detection device and detection method for non-methane total hydrocarbons |
| CN111982846A (en) * | 2020-09-07 | 2020-11-24 | 江门新财富环境管家技术有限公司 | Method for testing ammonia nitrogen by utilizing flow injection analyzer and application thereof |
-
2016
- 2016-08-30 CN CN201620999829.1U patent/CN206074434U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110780015A (en) * | 2018-07-31 | 2020-02-11 | 西安市宇驰检测技术有限公司 | Detection device and detection method for non-methane total hydrocarbons |
| CN111982846A (en) * | 2020-09-07 | 2020-11-24 | 江门新财富环境管家技术有限公司 | Method for testing ammonia nitrogen by utilizing flow injection analyzer and application thereof |
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