CN204129051U - A kind of hand-held gas-sensitive type ammonia nitrogen determination instrument - Google Patents
A kind of hand-held gas-sensitive type ammonia nitrogen determination instrument Download PDFInfo
- Publication number
- CN204129051U CN204129051U CN201420537979.1U CN201420537979U CN204129051U CN 204129051 U CN204129051 U CN 204129051U CN 201420537979 U CN201420537979 U CN 201420537979U CN 204129051 U CN204129051 U CN 204129051U
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- Prior art keywords
- detection probe
- ammonia nitrogen
- hand
- determination instrument
- nitrogen determination
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- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 title claims abstract description 32
- 239000007789 gas Substances 0.000 title claims abstract description 24
- 239000000523 sample Substances 0.000 claims abstract description 47
- 238000001514 detection method Methods 0.000 claims abstract description 44
- 238000005259 measurement Methods 0.000 claims abstract description 15
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000003463 adsorbent Substances 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 2
- 238000012360 testing method Methods 0.000 abstract description 5
- 238000013461 design Methods 0.000 abstract description 4
- 238000005070 sampling Methods 0.000 abstract description 4
- 238000004140 cleaning Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 239000003153 chemical reaction reagent Substances 0.000 description 6
- 150000002500 ions Chemical class 0.000 description 5
- 238000004448 titration Methods 0.000 description 5
- 238000004737 colorimetric analysis Methods 0.000 description 4
- 229910021529 ammonia Inorganic materials 0.000 description 3
- 238000004821 distillation Methods 0.000 description 3
- 238000004321 preservation Methods 0.000 description 3
- PAYRUJLWNCNPSJ-UHFFFAOYSA-N Aniline Chemical compound NC1=CC=CC=C1 PAYRUJLWNCNPSJ-UHFFFAOYSA-N 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- LNGHGZJAEPDKFE-UHFFFAOYSA-N chloro 2-hydroxybenzoate Chemical compound OC1=CC=CC=C1C(=O)OCl LNGHGZJAEPDKFE-UHFFFAOYSA-N 0.000 description 2
- 238000004587 chromatography analysis Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000003908 quality control method Methods 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- HZAXFHJVJLSVMW-UHFFFAOYSA-N 2-Aminoethan-1-ol Chemical compound NCCO HZAXFHJVJLSVMW-UHFFFAOYSA-N 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 235000012206 bottled water Nutrition 0.000 description 1
- ZFXVRMSLJDYJCH-UHFFFAOYSA-N calcium magnesium Chemical compound [Mg].[Ca] ZFXVRMSLJDYJCH-UHFFFAOYSA-N 0.000 description 1
- 125000001309 chloro group Chemical group Cl* 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000004128 high performance liquid chromatography Methods 0.000 description 1
- WQYVRQLZKVEZGA-UHFFFAOYSA-N hypochlorite Chemical compound Cl[O-] WQYVRQLZKVEZGA-UHFFFAOYSA-N 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 150000002730 mercury Chemical class 0.000 description 1
- 150000001455 metallic ions Chemical class 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000012086 standard solution Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
- Investigating Or Analysing Biological Materials (AREA)
- Investigating Or Analysing Materials By The Use Of Chemical Reactions (AREA)
Abstract
The utility model discloses a kind of hand-held gas-sensitive type ammonia nitrogen determination instrument.It comprises reaction chamber and measures main frame; Top and the detection probe of described reaction chamber are sealed and matched, and described detection probe is provided with air-sensitive ammonia gas sensor and Temperature Humidity Sensor; Described detection probe is connected with described measurement main frame by a cable; Described measurement main frame is provided with display and operation push-button.The utility model hand-held ammonia nitrogen determination instrument has the following advantages: machine volume is little, is applicable to carrying with to on-the-spot test; Be designed with detection probe and preserve chamber, the storage condition that sensor one is stable is provided; Independently reaction chamber design, is convenient to user's sampling and cleaning.
Description
Technical field
The utility model relates to a kind of special purpose device detecting ammonia-nitrogen content in water, is specifically related to a kind of hand-held gas-sensitive type ammonia nitrogen determination instrument.
Background technology
Ammonia-nitrogen content in water is an important indicator of river pollution, and in current water, the main method of testing of ammonia nitrogen comprises: reagent colorimetric method, salicylic acid-hypochlorite colourimetry, ion-selective electrode method, distillation and titrimetry, the chromatography of ions and high-efficient liquid phase technique etc.
The measurement sensitivity of reagent colorimetric method is higher, detectability can reach 0.02mg/L, be widely used in the detection of potable water and sewage in the lab, but following problem limits the popularization of the method: metallic ion, sulfide and the organism such as suspension, chlorine residue, calcium magnesium all can bring interference to test, so need carry out sample pretreatment; Nessler reagent strong toxicity and not easily preserving, in analytic process, a large amount of mercury salt that uses can cause environmental pollution.It is 1mg/L that salicylic acid-hypochlorite colourimetry measures the upper limit, and current Problems existing is as follows: detect after needing dilution to high-concentration sewage, and needs repeatedly to sound out for the sample of unknown concentration; Developing time longer (under normal temperature at least 1h), reagent stability is poor; Aniline and monoethanolamine can produce severe jamming to this method, and too high acidity and basicity all can disturb the formation of color-developing compounds, also have interference during the material reduced containing making hypochlorite ion.Ion-selective electrode method detects and is limited to 0.07mg/L, the range of linearity is 0.4 ~ 1400mg/L, not by the impact of colourity, turbidity, suspension, therefore do not need through pre-service, but the interference of high ion concentration water sample and the quality existing problems of electrode own make it be difficult to widespread use.Distillation and titrimetry are the analytical approachs that laboratory is commonly used, concrete operations are: the pH of adjusting sample is in the scope of 6.0-7.4, adding magnesium oxide makes in alkalescence, the BAS that the ammonia that distillation disengages is received in bottle absorbs, with methyl red-methylenum careuleum for indicator, with the ammonium in sour standard solution titration distillate.The method has easy and simple to handle, highly sensitive, and detectability reaches the advantage of 0.2mg/L, but needs equally to take preprocess method to eliminate the chaff interference of mensuration process, and in titration process, adopt visual method to judge titration end-point, introduces larger personal error.Chromatography of ions and high-pressure liquid chromatography have successfully analyzed the ammonia in various water sample, but all need water sample clean especially, and the instrument price used is expensive, therefore applies less.
This shows, there is the deficiencies such as the complicated cost of Instrument Design is high, mensuration process is loaded down with trivial details, require high, determination period long to human users in above-mentioned existing method.
Utility model content
The purpose of this utility model is to provide a kind of hand-held gas-sensitive type ammonia nitrogen determination instrument, be specially a kind of separate type handheld water body ammonia nitrogen determination instrument based on amino molecule gas-liquid principle of mobile equilibrium, without the need to toxic reagent during detection, easy testing process achieves the ammonia nitrogen test of water body; The utility model comprises reaction chamber, detection probe and preserves chamber, handheld main machine three separate sections, is convenient to preserve and carry, can measures fast at the scene.
Hand-held gas-sensitive type ammonia nitrogen determination instrument provided by the utility model, comprises reaction chamber and measures main frame;
Top and the detection probe of described reaction chamber are sealed and matched, and described detection probe is provided with air-sensitive ammonia gas sensor and Temperature Humidity Sensor;
Described detection probe is connected with described measurement main frame by a cable;
Described measurement main frame is provided with display and operation push-button.
In described hand-held gas-sensitive type ammonia nitrogen determination instrument, the sidewall of described reaction chamber is provided with volume markings, with Quality control addition.
In described hand-held gas-sensitive type ammonia nitrogen determination instrument, described detection probe realizes sealing by O type circle and described reaction chamber, improves its air-tightness.
In described hand-held gas-sensitive type ammonia nitrogen determination instrument, be socket connection between described cable and described measurement main frame, can realize fast connecting, realize the transmission of power supply and signal.
In described hand-held gas-sensitive type ammonia nitrogen determination instrument, described hand-held gas-sensitive type ammonia nitrogen determination instrument also comprises a detection probe and preserves chamber, and described detection probe and described detection probe are preserved chamber and can be realized being sealed and matched.
In described hand-held gas-sensitive type ammonia nitrogen determination instrument, described detection probe is preserved in chamber and is provided with adsorbent, when preservation and non-measured, described detection probe and described detection probe is preserved chamber and is connected, to be supplied to the stable storage condition of sensor one; Described adsorbent can ensure that described detection head preserves the air cleaner in chamber, to protect sensor.
In described hand-held gas-sensitive type ammonia nitrogen determination instrument, described measurement main frame inside is provided with Signal sampling and processing circuit, realizes user operation mutual by described display and described button.
The utility model hand-held ammonia nitrogen determination instrument has the following advantages:
Machine volume is little, is applicable to carrying with to on-the-spot test; Be designed with detection probe and preserve chamber, the storage condition that sensor one is stable is provided; Independently reaction chamber design, is convenient to user's sampling and cleaning.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model hand-held gas-sensitive type ammonia nitrogen determination instrument.
In figure, each mark is as follows:
1 reaction chamber, 2 detection probe, 3 sensor combinations, 4 cables, 5 measure main frame, 6 displays, 7 operation push-buttons, 8 detection probe preservation chambeies, 9 adsorbents.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described further, but the utility model is not limited to following examples.
As shown in Figure 1, be the hand-held gas-sensitive type ammonia nitrogen determination instrument that the utility model provides, it comprises reaction chamber 1 and measures main frame 5.Wherein, the top of reaction chamber 1 and detection probe 2 are sealed and matched by O type circle, improve the air-tightness of reaction chamber; The sidewall of reaction chamber 1 is provided with volume markings, with Quality control addition.Detection probe 2 is provided with air-sensitive ammonia gas sensor and Temperature Humidity Sensor, forms sensor combinations 3 as shown in Figure 1, to respond the ammonia in reaction chamber 1 and humiture.Detection probe 2 is connected with measurement main frame 5 by a cable 4, and is socket connection between cable 4 and measurement main frame 5, can realize fast connecting, realize the transmission of power supply and signal.This measurement main frame 5 is provided with display 6 and operation push-button 7, and this measurement main frame 5 inside is provided with Signal sampling and processing circuit, realizes user operation mutual by display 6 and operation push-button 7.
In order to the detection probe 2 that adequately protects, the utility model hand-held gas-sensitive type ammonia nitrogen determination instrument also comprises a detection probe and preserves chamber 8, and detection probe 2 and detection probe are preserved chamber 8 and can be realized being sealed and matched, and the bottom fixed adsorbent in chamber 8 is preserved in detection probe, ensure that detection head preserves the air cleaner in chamber 8, to protect sensor; When preservation and non-measured, detection probe 2 and detection probe are preserved chamber 8 and is connected, thus be supplied to the stable storage condition of sensor one.
Use above-mentioned hand-held gas-sensitive type ammonia nitrogen determination instrument to measure ammonia nitrogen concentration can carry out in accordance with the following steps:
1, detection probe 2 is connected to measurement main frame 5 by cable 4, the initialization of laggard line sensor of starting shooting combination 3 and condition adjudgement.
2, by joining in reaction chamber 1 after sample and reagent mixing, detection probe 2 being connected to the top of reaction chamber 1, starting to measure.
3, after measuring, display 6 provides prompting, takes off detection probe 2, covers and preserves on chamber 8 in detection probe.
4, the operations such as data query, setting, startup and stopping can being realized by the operation push-button 7 measured on main frame 5.
It should be noted that, the embodiment shown in Fig. 1 is the preferred embodiment that the utility model is introduced, and those skilled in the art can design more embodiment on this basis completely, therefore do not repeat herein.
Claims (6)
1. a hand-held gas-sensitive type ammonia nitrogen determination instrument, is characterized in that: it comprises reaction chamber and measures main frame;
Top and the detection probe of described reaction chamber are sealed and matched, and described detection probe is provided with air-sensitive ammonia gas sensor and Temperature Humidity Sensor;
Described detection probe is connected with described measurement main frame by a cable;
Described measurement main frame is provided with display and operation push-button.
2. hand-held gas-sensitive type ammonia nitrogen determination instrument according to claim 1, is characterized in that: the sidewall of described reaction chamber is provided with volume markings.
3. hand-held gas-sensitive type ammonia nitrogen determination instrument according to claim 1 and 2, is characterized in that: described detection probe realizes sealing by O type circle and described reaction chamber.
4. hand-held gas-sensitive type ammonia nitrogen determination instrument according to claim 3, is characterized in that: be socket connection between described cable and described measurement main frame.
5. hand-held gas-sensitive type ammonia nitrogen determination instrument according to claim 4, is characterized in that: described hand-held gas-sensitive type ammonia nitrogen determination instrument also comprises a detection probe and preserves chamber, and described detection probe and described detection probe are preserved chamber and can be realized being sealed and matched.
6. hand-held gas-sensitive type ammonia nitrogen determination instrument according to claim 5, is characterized in that: described detection probe is preserved in chamber and is provided with adsorbent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420537979.1U CN204129051U (en) | 2014-09-18 | 2014-09-18 | A kind of hand-held gas-sensitive type ammonia nitrogen determination instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420537979.1U CN204129051U (en) | 2014-09-18 | 2014-09-18 | A kind of hand-held gas-sensitive type ammonia nitrogen determination instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204129051U true CN204129051U (en) | 2015-01-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420537979.1U Expired - Fee Related CN204129051U (en) | 2014-09-18 | 2014-09-18 | A kind of hand-held gas-sensitive type ammonia nitrogen determination instrument |
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| CN (1) | CN204129051U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108107173A (en) * | 2017-12-28 | 2018-06-01 | 河北省地质学会 | Portable hand-held water quality detection early-warning apparatus |
| CN108776198A (en) * | 2018-07-31 | 2018-11-09 | 上海安杰环保科技股份有限公司 | A kind of nitrogen sulfide detection device and detection method based on chemical vapors genetic method |
-
2014
- 2014-09-18 CN CN201420537979.1U patent/CN204129051U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108107173A (en) * | 2017-12-28 | 2018-06-01 | 河北省地质学会 | Portable hand-held water quality detection early-warning apparatus |
| CN108776198A (en) * | 2018-07-31 | 2018-11-09 | 上海安杰环保科技股份有限公司 | A kind of nitrogen sulfide detection device and detection method based on chemical vapors genetic method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150128 |
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| CF01 | Termination of patent right due to non-payment of annual fee |