JPS5722557A - Device for separately measuring very small amount of nitrogen in accordance with forms - Google Patents
Device for separately measuring very small amount of nitrogen in accordance with formsInfo
- Publication number
- JPS5722557A JPS5722557A JP9706680A JP9706680A JPS5722557A JP S5722557 A JPS5722557 A JP S5722557A JP 9706680 A JP9706680 A JP 9706680A JP 9706680 A JP9706680 A JP 9706680A JP S5722557 A JPS5722557 A JP S5722557A
- Authority
- JP
- Japan
- Prior art keywords
- nitrogen
- acid state
- state nitrogen
- nitrous acid
- measured
- Prior art date
- 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.)
- Granted
Links
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title abstract 22
- 229910052757 nitrogen Inorganic materials 0.000 title abstract 11
- IOVCWXUNBOPUCH-UHFFFAOYSA-N Nitrous acid Chemical compound ON=O IOVCWXUNBOPUCH-UHFFFAOYSA-N 0.000 abstract 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 4
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 abstract 3
- 229910017604 nitric acid Inorganic materials 0.000 abstract 3
- 238000005443 coulometric titration Methods 0.000 abstract 2
- 239000007789 gas Substances 0.000 abstract 2
- 230000002378 acidificating effect Effects 0.000 abstract 1
- 239000012159 carrier gas Substances 0.000 abstract 1
- 239000003792 electrolyte Substances 0.000 abstract 1
- 229910017464 nitrogen compound Inorganic materials 0.000 abstract 1
- 150000002830 nitrogen compounds Chemical class 0.000 abstract 1
- -1 nitrous acid ion Chemical class 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/18—Water
- G01N33/182—Specific anions in water
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/18—Water
- G01N33/1813—Specific cations in water, e.g. heavy metals
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/18—Water
- G01N33/1826—Organic contamination in water
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
Abstract
PURPOSE:To perform fractional determination of very small amount of total nitrogen, nitrous acid state nitrogen, and nitric acid state nitrogen accurately in a short time by combining a distilling part and a measuring part which are scarcely affected by water. CONSTITUTION:Sample water is injected in an introducing port 4 in a mesuring part 1, and introduced to reacting part 25 together with H2 gas which is introduced from an introducing pipe 26. Nitrogen compound is reduced to NH3. NH3 is introduced to an electrolytic bath 19 via an acidic gas removing part 20, and pipes 20 and 18, and absorbed by electrolyte. Coulometric titration is performed, and the titrated result is displayed on a coulometric titration control device 7, and total nitrogen is measured. Then the sample water is injected to a distilling tank 12 from an introducing port 11 in the distilling part 2, and nitrous acid state nitrogen is transformed into NO or NO2. It is introduced into the reacting part 25 via a returning condenser 6 and pipe 5, together with carrier gas introduced from an introducing port 10. Nitrous acid state nitrogen is measured by the similar means as total nitrogen. The sample water is reduced beforehand, nitric acid state nitrogen is reduced to nitrous acid ion, and nitric acid state nitrogen is measured by the similar means as nitrous acid state nitrogen.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9706680A JPS5722557A (en) | 1980-07-16 | 1980-07-16 | Device for separately measuring very small amount of nitrogen in accordance with forms |
| US06/270,231 US4348359A (en) | 1980-07-16 | 1981-06-04 | Device for determining various types of trace nitrogen |
| GB8117745A GB2080538B (en) | 1980-07-16 | 1981-06-10 | Device for determining various types of trace nitrogen |
| DE19813128175 DE3128175A1 (en) | 1980-07-16 | 1981-07-16 | DEVICE FOR DETERMINING VARIOUS TYPES OF TRACE NITROGEN |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9706680A JPS5722557A (en) | 1980-07-16 | 1980-07-16 | Device for separately measuring very small amount of nitrogen in accordance with forms |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5722557A true JPS5722557A (en) | 1982-02-05 |
| JPS6345062B2 JPS6345062B2 (en) | 1988-09-07 |
Family
ID=14182266
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9706680A Granted JPS5722557A (en) | 1980-07-16 | 1980-07-16 | Device for separately measuring very small amount of nitrogen in accordance with forms |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5722557A (en) |
-
1980
- 1980-07-16 JP JP9706680A patent/JPS5722557A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6345062B2 (en) | 1988-09-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106568816A (en) | Reagent and method for rapidly measuring ammonia nitrogen content of oil refining sewage through electrode method | |
| JPS5722557A (en) | Device for separately measuring very small amount of nitrogen in accordance with forms | |
| GB1569026A (en) | Method and instrument for amperometric measurement of the free chlorine content in a solution | |
| JPS5722550A (en) | Device for measuring very small amount of ammonia-state nitrogen and total nitrogen | |
| JPS5633545A (en) | Method of quantitatively analyzing acid and total iron ion | |
| JPS5248390A (en) | Method of measurement of oxygen consumption in water | |
| Brummet et al. | Chelating agents in nonaqueous titrimetry | |
| JPS5722558A (en) | Formwise measuring device for extreme trace of nitrogen | |
| JPS5596453A (en) | Method and device for measuring quantity of chlorine in aqueous solution | |
| JPS57203943A (en) | Method of and apparatus for detecting concentration of metal ion | |
| JPS5513135A (en) | Measuring device for nitrogen content of waste water | |
| JPS55119046A (en) | Method and apparatus for measuring concentration of components of electrolyzed solution of chromic acid | |
| JPS5399995A (en) | Corrosion tester | |
| JPS56155831A (en) | Method and device for measuring film permeability of acid and basic gas | |
| JPS53122482A (en) | Gas analyzer | |
| JPS5339193A (en) | Measuring method for ion concentration of phosphoric acid and arsenic acid | |
| JPS53149389A (en) | Measurement method of copper ions and chelating agent concentration in chemical copper plating solution | |
| JPS5323693A (en) | Amalysing method for lead | |
| JPS57119256A (en) | Quantitative analysis of total carbonic acid in water solution | |
| JPS56112642A (en) | Coulometric titration method and device therefor | |
| JPS5233592A (en) | Ion concentration measuring apparatus | |
| JPS57196147A (en) | Measurement of ammonium ion concentration | |
| Ramamoorthy et al. | Complexes of uranyl ion with butyric and isobutyric acids | |
| JPS5686339A (en) | Gas analysis method | |
| JPS5578251A (en) | Estimation method for sulfite ion and quantitative analysis unit |