JPS5722550A - Device for measuring very small amount of ammonia-state nitrogen and total nitrogen - Google Patents
Device for measuring very small amount of ammonia-state nitrogen and total nitrogenInfo
- Publication number
- JPS5722550A JPS5722550A JP9706880A JP9706880A JPS5722550A JP S5722550 A JPS5722550 A JP S5722550A JP 9706880 A JP9706880 A JP 9706880A JP 9706880 A JP9706880 A JP 9706880A JP S5722550 A JPS5722550 A JP S5722550A
- Authority
- JP
- Japan
- Prior art keywords
- nitrogen
- ammonia
- coulometric titration
- distilling
- measuring
- 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.)
- Pending
Links
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title abstract 12
- 229910052757 nitrogen Inorganic materials 0.000 title abstract 6
- 238000005443 coulometric titration Methods 0.000 abstract 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 3
- 230000002378 acidificating effect Effects 0.000 abstract 2
- 239000007789 gas Substances 0.000 abstract 2
- 238000010438 heat treatment Methods 0.000 abstract 2
- 229910017464 nitrogen compound Inorganic materials 0.000 abstract 2
- 150000002830 nitrogen compounds Chemical class 0.000 abstract 2
- 239000012159 carrier gas Substances 0.000 abstract 1
- 239000003792 electrolyte Substances 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N31/00—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods
- G01N31/002—Determining nitrogen by transformation into ammonia, e.g. KJELDAHL method
-
- 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)
- General Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Molecular Biology (AREA)
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
Abstract
PURPOSE:To measure the very small amount of ammonia-state nitrogen and total nitrogen precisely in a short time by combining a distilling part and measuring part which are not affected by water. CONSTITUTION:A specified amount of sample water is introduced into a distilling tank 12 from a sample introducing port 11 of the distilling part 2. Heating is performed by a heater 13 and the ammonia-state nitrogen is transformed to NH3. NH3 is introduced to an electrolytic bath 20 in a coulometric titration part 18 together with carrier gas introduced from an introducing pipe 10 via returning condenser 6 and pipes 5 and 16. NH3 is absorbed by electrolyte. Coulometric titration is performed, the titrated result is displayed on a coulometric titration control device 7, and ammonia-state nitrogen is measured. Then a specifid amount of sample water is injected into a sample introducing port 4 in a measuring part 1, introduced into a reacting part 26 contained in a heating part 25, together with H2 gas which is introduced from an introducing port 27. All nitrogen compound is reduced to NH3. Then NH3 is introduced into an acidic gas removing part 23, coexisting acidic agas is removed, NH3 is introduced into the bath 20 via pipes 21 and 19, coulometric titration is performed, and nitrogen compound is measured.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9706880A JPS5722550A (en) | 1980-07-16 | 1980-07-16 | Device for measuring very small amount of ammonia-state nitrogen and total nitrogen |
| 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 |
|---|---|---|---|
| JP9706880A JPS5722550A (en) | 1980-07-16 | 1980-07-16 | Device for measuring very small amount of ammonia-state nitrogen and total nitrogen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5722550A true JPS5722550A (en) | 1982-02-05 |
Family
ID=14182319
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9706880A Pending JPS5722550A (en) | 1980-07-16 | 1980-07-16 | Device for measuring very small amount of ammonia-state nitrogen and total nitrogen |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5722550A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013015506A (en) * | 2011-07-06 | 2013-01-24 | Hiranuma Sangyo Kk | Ammoniac nitrogen measurement method of coulometric titration system, and device thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52152789A (en) * | 1976-06-14 | 1977-12-19 | Mitsubishi Chem Ind | Method of and apparatus for analyzing volatile component in liquid |
| JPS53119097A (en) * | 1977-03-25 | 1978-10-18 | Yanagimoto Seisakusho Co Ltd | Method and apparatus for quantitative determination of nitrogen |
-
1980
- 1980-07-16 JP JP9706880A patent/JPS5722550A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52152789A (en) * | 1976-06-14 | 1977-12-19 | Mitsubishi Chem Ind | Method of and apparatus for analyzing volatile component in liquid |
| JPS53119097A (en) * | 1977-03-25 | 1978-10-18 | Yanagimoto Seisakusho Co Ltd | Method and apparatus for quantitative determination of nitrogen |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013015506A (en) * | 2011-07-06 | 2013-01-24 | Hiranuma Sangyo Kk | Ammoniac nitrogen measurement method of coulometric titration system, and device thereof |
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