CN104459041A - Nitrogen oxide detection reagent and preparation method thereof - Google Patents
Nitrogen oxide detection reagent and preparation method thereof Download PDFInfo
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- CN104459041A CN104459041A CN201410698664.XA CN201410698664A CN104459041A CN 104459041 A CN104459041 A CN 104459041A CN 201410698664 A CN201410698664 A CN 201410698664A CN 104459041 A CN104459041 A CN 104459041A
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Abstract
The invention relates to a nitrogen oxide detection reagent and a preparation method thereof, belongs to the technical field of gas detection. The detection reagent comprises the following components in parts by mass: 10-25 parts of triethanolamine, 5-25 parts of ethylene oxide, 5-10 parts of diphenol propane, 5-15 parts of citric acid, 2-5 parts of zinc nitrate, 2-5 parts of glycerol, 1-3 parts of potassium oxalate, 2-6 parts of ethanol and 5-15 parts of deionized water. The nitrogen oxide detection reagent provided by the invention overcomes the defect of severe experimental requirements by using a N(1-naphty1)-ethylenediamine dihydrochloride spectrophotometric method, and the accuracy of the test result of the N(1-naphty1)-ethylenediamine dihydrochloride spectrophotometric method is relatively low and the sensitivity is not as good as that of the testing reagent provided by the invention. Meanwhile, the nitrogen oxide detection reagent is relatively low in cost and simple to operate and is an ideal testing reagent.
Description
Technical field
The invention belongs to gas detection technology field, particularly a kind of oxides of nitrogen detects reagent and preparation method thereof.
Background technology
Oxides of nitrogen comprises multiple compounds, as nitrous oxide, nitrogen monoxide, nitrogen dioxide, nitrogen trioxide, dinitrogen tetroxide and nitrogen pentoxide etc.Except nitrogen dioxide, the equal extremely unstable of other oxides of nitrogen, meet light, wet or thermal change becomes nitrogen dioxide and nitrogen monoxide, nitrogen monoxide becomes nitrogen dioxide again.
Oxides of nitrogen common in air is nitrogen monoxide and nitrogen dioxide, in recent years, be subject to the impact of air off gas and vehicle exhaust, nitrogen monoxide in air and the content of nitrogen dioxide more and more higher, reach comparatively serious environmental problem, because nitrogen monoxide and nitrogen dioxide all have toxicity to human body, therefore the content of oxides of nitrogen has become one of standard evaluating air quality.
At present, the oxides of nitrogen measured in air comparatively common are two kinds of methods.
The first is chemical assay, i.e. hydrochloride naphthodiamide spectrophotometric method.When measuring nitrous oxides concentration, first with chromium trioxide oxidation tube, oxidation of nitric oxide is become nitrogen dioxide.Nitrogen dioxide is absorbed in solution and forms nitrous acid, plays diazo-reaction with sulfanilic acid, with hydrochloride naphthodiamide coupling, generate rose azo dyes.Shade, colorimetric assay, gets final product measurement result.
The second way is chemoluminescence method, chemiluminescence be based on chemical reaction enough energy are provided, make the electronics of the molecule of wherein a kind of product be provoked into excited state molecule, launch the light of certain wavelength when it returns ground state, be called chemiluminescence.The method utilizes the chemical reaction between oxygen and NO to generate excited state nitrogen dioxide.Chemoluminescence method has highly sensitive, that analysis speed is fast feature, and apparatus is also comparatively simple, is detection method comparatively popular at present.
summary of the invention
The technical matters that the present invention solves: for above-mentioned deficiency, overcome the defect of prior art, the object of this invention is to provide a kind of oxides of nitrogen and detects reagent and preparation method thereof.
Technical scheme of the present invention: a kind of oxides of nitrogen detects reagent, comprises each component of following mass fraction:
Triethanolamine 10-25 part, oxirane 5-25 part, diphenol propane 5-10 part, citric acid 5-15 part, zinc nitrate 2-5 part, glycerine 2-5 part, potassium oxalate 1-3 part, ethanol 2-6 part and deionized water 5-15 part.
As preferably, the mass ratio of triethanolamine and oxirane is 1-2:1.
As preferably, described detection reagent comprises each component of following mass fraction: triethanolamine 12-20 part, oxirane 8-20 part, diphenol propane 6-9 part, citric acid 6-12 part, zinc nitrate 2-4 part, glycerine 3-4 part, potassium oxalate 2-3 part, ethanol 3-5 part and deionized water 7-13 part.
More preferably, described detection reagent comprises each component of following mass fraction: triethanolamine 14-18 part, oxirane 10-16 part, diphenol propane 7-8 part, citric acid 7-10 part, zinc nitrate 3-4 part, glycerine 3-4 part, potassium oxalate 2-3 part, ethanol 4-5 part and deionized water 8-12 part.
More preferably, described detection reagent comprises each component of following mass fraction: triethanolamine 15 parts, 12 parts, oxirane, diphenol propane 7 parts, citric acid 9 parts, zinc nitrate 3 parts, glycerine 4 parts, potassium oxalate 2 parts, ethanol 5 parts and deionized water 11 parts.
Oxides of nitrogen detects a preparation method for reagent, and preparation process is as follows:
(1) zinc nitrate and potassium oxalate are joined deionized water, be stirred to and dissolve completely, obtain clear solution;
(2) in clear solution, add triethanolamine, oxirane and diphenol propane successively, constantly stir, form mixed liquor;
(3) in mixed liquor, add citric acid, reconcile mixed liquor acidity;
(4) add ethanol and glycerine in the mixed liquor obtained in step (3), stir, namely prepare oxides of nitrogen and detect reagent.
Beneficial effect: oxides of nitrogen provided by the invention detects reagent, and being different from traditional mensuration reagent, is a kind of mensuration reagent completely newly.Reagent for absorbing agent, with ethanol and glycerine for buffering agent, adjusts acidity by citric acid, with better absorbing NOx with triethanolamine, oxirane and diphenol propane.Triethanolamine, oxirane and diphenol propane are as organic compound, and itself and oxides of nitrogen can effecting reactions, can be measured the content of oxides of nitrogen by the nitrogen-atoms measured in organism functional group.
Therefore, oxides of nitrogen provided by the invention detects reagent, and overcome the harsh requirement of experiment of hydrochloride naphthodiamide spectrophotometric method, and hydrochloride naphthodiamide spectrophotometry result is lower, sensitivity is not as good as test agent provided by the invention; Meanwhile, its cost is lower, simple to operate, is a kind of desirable mensuration reagent.
Embodiment
In order to understand the present invention further, below in conjunction with embodiment, the preferred embodiment of the invention is described, but should be appreciated that these describe just for further illustrating the features and advantages of the present invention, instead of limiting to the claimed invention.
Embodiment 1:
A kind of oxides of nitrogen detects reagent, comprises each component of following mass fraction:
Triethanolamine 25 parts, 25 parts, oxirane, diphenol propane 10 parts, citric acid 15 parts, zinc nitrate 5 parts, glycerine 5 parts, potassium oxalate 3 parts, ethanol 6 parts and deionized water 15 parts.
Oxides of nitrogen detects a preparation method for reagent, and preparation process is as follows:
(1) zinc nitrate and potassium oxalate are joined deionized water, be stirred to and dissolve completely, obtain clear solution;
(2) in clear solution, add triethanolamine, oxirane and diphenol propane successively, constantly stir, form mixed liquor;
(3) in mixed liquor, add citric acid, reconcile mixed liquor acidity;
(4) add ethanol and glycerine in the mixed liquor obtained in step (3), stir, namely prepare oxides of nitrogen and detect reagent.
The minimal detectable concentration that this oxides of nitrogen detects reagent is 0.05 μ g/mL.
Embodiment 2:
A kind of oxides of nitrogen detects reagent, comprises each component of following mass fraction:
Triethanolamine 10 parts, 5 parts, oxirane, diphenol propane 5 parts, citric acid 5 parts, zinc nitrate 2 parts, glycerine 2 parts, potassium oxalate 1 part, ethanol 2 parts and deionized water 5 parts.
Oxides of nitrogen detects a preparation method for reagent, and preparation process is as follows:
(1) zinc nitrate and potassium oxalate are joined deionized water, be stirred to and dissolve completely, obtain clear solution;
(2) in clear solution, add triethanolamine, oxirane and diphenol propane successively, constantly stir, form mixed liquor;
(3) in mixed liquor, add citric acid, reconcile mixed liquor acidity;
(4) add ethanol and glycerine in the mixed liquor obtained in step (3), stir, namely prepare oxides of nitrogen and detect reagent.
The minimal detectable concentration that this oxides of nitrogen detects reagent is 0.1 μ g/mL.
Embodiment 3:
A kind of oxides of nitrogen detects reagent, comprises each component of following mass fraction:
Triethanolamine 20 parts, 20 parts, oxirane, diphenol propane 9 parts, citric acid 12 parts, zinc nitrate 4 parts, glycerine 4 parts, potassium oxalate 3 parts, ethanol 5 parts and deionized water 13 parts.
More preferably, described detection reagent comprises each component of following mass fraction: triethanolamine 14-18 part, oxirane 10-16 part, two
Oxides of nitrogen detects a preparation method for reagent, and preparation process is as follows:
(1) zinc nitrate and potassium oxalate are joined deionized water, be stirred to and dissolve completely, obtain clear solution;
(2) in clear solution, add triethanolamine, oxirane and diphenol propane successively, constantly stir, form mixed liquor;
(3) in mixed liquor, add citric acid, reconcile mixed liquor acidity;
(4) add ethanol and glycerine in the mixed liquor obtained in step (3), stir, namely prepare oxides of nitrogen and detect reagent.
The minimal detectable concentration that this oxides of nitrogen detects reagent is 0.08 μ g/mL.
Embodiment 4:
A kind of oxides of nitrogen detects reagent, comprises each component of following mass fraction:
Triethanolamine 14 parts, 10 parts, oxirane, diphenol propane 7 parts, citric acid 7 parts, zinc nitrate 3 parts, glycerine 3 parts, potassium oxalate 2 parts, ethanol 4 parts and deionized water 8 parts.
Oxides of nitrogen detects a preparation method for reagent, and preparation process is as follows:
(1) zinc nitrate and potassium oxalate are joined deionized water, be stirred to and dissolve completely, obtain clear solution;
(2) in clear solution, add triethanolamine, oxirane and diphenol propane successively, constantly stir, form mixed liquor;
(3) in mixed liquor, add citric acid, reconcile mixed liquor acidity;
(4) add ethanol and glycerine in the mixed liquor obtained in step (3), stir, namely prepare oxides of nitrogen and detect reagent.
The minimal detectable concentration that this oxides of nitrogen detects reagent is 0.06 μ g/mL.
Embodiment 5:
A kind of oxides of nitrogen detects reagent, comprises each component of following mass fraction:
Triethanolamine 15 parts, 12 parts, oxirane, diphenol propane 7 parts, citric acid 9 parts, zinc nitrate 3 parts, glycerine 4 parts, potassium oxalate 2 parts, ethanol 5 parts and deionized water 11 parts.
Oxides of nitrogen detects a preparation method for reagent, and preparation process is as follows:
(1) zinc nitrate and potassium oxalate are joined deionized water, be stirred to and dissolve completely, obtain clear solution;
(2) in clear solution, add triethanolamine, oxirane and diphenol propane successively, constantly stir, form mixed liquor;
(3) in mixed liquor, add citric acid, reconcile mixed liquor acidity;
(4) add ethanol and glycerine in the mixed liquor obtained in step (3), stir, namely prepare oxides of nitrogen and detect reagent.
The minimal detectable concentration that this oxides of nitrogen detects reagent is 0.05 μ g/mL.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (6)
1. oxides of nitrogen detects a reagent, it is characterized in that, comprises each component of following mass fraction:
Triethanolamine 10-25 part, oxirane 5-25 part, diphenol propane 5-10 part, citric acid 5-15 part, zinc nitrate 2-5 part, glycerine 2-5 part, potassium oxalate 1-3 part, ethanol 2-6 part and deionized water 5-15 part.
2. oxides of nitrogen according to claim 1 detects reagent, it is characterized in that: the mass ratio of triethanolamine and oxirane is 1-2:1.
3. oxides of nitrogen according to claim 1 detects reagent, it is characterized in that: described detection reagent comprises each component of following mass fraction: triethanolamine 12-20 part, oxirane 8-20 part, diphenol propane 6-9 part, citric acid 6-12 part, zinc nitrate 2-4 part, glycerine 3-4 part, potassium oxalate 2-3 part, ethanol 3-5 part and deionized water 7-13 part.
4. oxides of nitrogen according to claim 3 detects reagent, it is characterized in that: described detection reagent comprises each component of following mass fraction: triethanolamine 14-18 part, oxirane 10-16 part, diphenol propane 7-8 part, citric acid 7-10 part, zinc nitrate 3-4 part, glycerine 3-4 part, potassium oxalate 2-3 part, ethanol 4-5 part and deionized water 8-12 part.
5. oxides of nitrogen according to claim 4 detects reagent, it is characterized in that: described detection reagent comprises each component of following mass fraction: triethanolamine 15 parts, 12 parts, oxirane, diphenol propane 7 parts, citric acid 9 parts, zinc nitrate 3 parts, glycerine 4 parts, potassium oxalate 2 parts, ethanol 5 parts and deionized water 11 parts.
6. oxides of nitrogen according to claim 1 detects a preparation method for reagent, and it is characterized in that, preparation process is as follows:
(1) zinc nitrate and potassium oxalate are joined deionized water, be stirred to and dissolve completely, obtain clear solution;
(2) in clear solution, add triethanolamine, oxirane and diphenol propane successively, constantly stir, form mixed liquor;
(3) in mixed liquor, add citric acid, reconcile mixed liquor acidity;
(4) add ethanol and glycerine in the mixed liquor obtained in step (3), stir, namely prepare oxides of nitrogen and detect reagent.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410698664.XA CN104459041A (en) | 2014-11-28 | 2014-11-28 | Nitrogen oxide detection reagent and preparation method thereof |
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| CN201410698664.XA CN104459041A (en) | 2014-11-28 | 2014-11-28 | Nitrogen oxide detection reagent and preparation method thereof |
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| CN104459041A true CN104459041A (en) | 2015-03-25 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107754563A (en) * | 2017-11-01 | 2018-03-06 | 安徽鼎隆重工科技有限公司 | The special fume treatment liquid of hot chamber machine |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1092795A (en) * | 1993-03-27 | 1994-09-28 | 云浮硫铁矿企业集团公司 | A kind of composition of protective agent |
| WO1995010774A1 (en) * | 1993-10-12 | 1995-04-20 | Robert Bosch Gmbh | Sensor for detecting nitrogen oxide |
| US20120129266A1 (en) * | 2009-08-04 | 2012-05-24 | Menon Vinod P | Method of detecting oxides of nitrogen |
| CN103131390A (en) * | 2011-11-24 | 2013-06-05 | 陈启充 | Composition of car window glass antifogging agent |
| CN104046440A (en) * | 2014-06-24 | 2014-09-17 | 青岛扎西生物科技有限公司 | Lubricating oil for metal processing |
-
2014
- 2014-11-28 CN CN201410698664.XA patent/CN104459041A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1092795A (en) * | 1993-03-27 | 1994-09-28 | 云浮硫铁矿企业集团公司 | A kind of composition of protective agent |
| WO1995010774A1 (en) * | 1993-10-12 | 1995-04-20 | Robert Bosch Gmbh | Sensor for detecting nitrogen oxide |
| US20120129266A1 (en) * | 2009-08-04 | 2012-05-24 | Menon Vinod P | Method of detecting oxides of nitrogen |
| CN103131390A (en) * | 2011-11-24 | 2013-06-05 | 陈启充 | Composition of car window glass antifogging agent |
| CN104046440A (en) * | 2014-06-24 | 2014-09-17 | 青岛扎西生物科技有限公司 | Lubricating oil for metal processing |
Non-Patent Citations (1)
| Title |
|---|
| 张月琴等: "气体中氮氧化物分析方法进展", 《现代科学仪器》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107754563A (en) * | 2017-11-01 | 2018-03-06 | 安徽鼎隆重工科技有限公司 | The special fume treatment liquid of hot chamber machine |
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Application publication date: 20150325 |