CN101241067A - Total organic carbon total nitrogen combined measuring instrument - Google Patents
Total organic carbon total nitrogen combined measuring instrument Download PDFInfo
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- CN101241067A CN101241067A CNA2008100199170A CN200810019917A CN101241067A CN 101241067 A CN101241067 A CN 101241067A CN A2008100199170 A CNA2008100199170 A CN A2008100199170A CN 200810019917 A CN200810019917 A CN 200810019917A CN 101241067 A CN101241067 A CN 101241067A
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Abstract
The invention discloses a total organic carbon total nitrogen united measuring apparatus belonging to chemical analyzer. The united measuring apparatus is provided with non-dispersion infrared gas detector in series and chemical reflecting detector for measurement of total organic carbon total nitrogen, with six-way valve, injecting pump connected to the computer, accomplishing pre-procession and automated sample feeding of the sample, with piled drying water processing system, which drying and processing the sample thoroughly, and with high temperature combustion device and detecting flow respectively for water quality sample and solid sample. The united measuring apparatus detects synchronously total organic carbon total nitrogen in the total organic carbon total nitrogen, and liquid sample containing a lot of particles, suspended substances, which obviously improves detecting efficiency, detecting sensitivity, accuracy and extends using scale.
Description
Technical field
The present invention relates to the detector of carbon, nitrogen content in a kind of working sample, particularly can the combined measuring instrument that total organic carbon and total nitrogen are measured synchronously in the fluid sample of a large amount of particles, suspension be arranged water sample, solid sample and other.
Background technology
Total organic carbon in the sample (TOC), total nitrogen (TN) are the important indicators that the reflection sample is subjected to the organism pollution level.Organic contaminant is present in water body, soil, the deposit, directly influences environmental quality, and existent environment of people has been caused very big harm, and therefore, the monitoring of total organic carbon and total nitrogen has great significance to control energy-saving and emission-reduction, protection environment.Total carbon in the sample (TC) is made up of total organic carbon (TOC) and inorganic carbon (IC), deducts IC concentration from TC concentration, just can obtain TOC concentration.Total organic carbon (TOC) analyser is more and more universal in the application of China, and product spreads all over the water sample analysis, and solid sample analyses such as soil, mud are external imported product substantially wherein.For the mensuration of total organic carbon in the sample, by the principle of work difference, generally adopt high-temperature catalytic oxidizing process, wet-chemical oxidizing process at present, detecting device is non-dispersion infrared detector (NDIR).Mensuration for total nitrogen in the sample (TN), adopt chemoluminescence method, detecting device is chemiluminescence detector (CLD), and a few external product is only arranged as the annex of total organic carbon instrument and single detection part, the solid determination of total nitrogen content system that does not have independent design, only can be used to synchronous mensuration, and can not the synchronous mensuration of the fluid sample of a large amount of particles, suspension be arranged solid sample and other to the water sample total nitrogen.In the domestic equipment, the product that adopts wet-chemical oxidizing process principle of work is only arranged, and do not have the finish-drying disposal system of moisture content in reliable and stable full-automatic sampling system and the sample analysis process, The pretreatment etc. are all finished by manual.Therefore, existing total organic carbon, determination of total nitrogen content instrument detection efficiency are low, and detection sensitivity, accuracy are not high, and usable range is limited.
Summary of the invention
The objective of the invention is in order to solve the deficiencies in the prior art, a kind of total organic carbon, total nitrogen combined measuring instrument are provided, to water sample, solid sample with contain in the fluid sample of a large amount of particles, suspension total organic carbon, total nitrogen and measure synchronously, improve detection efficiency and detection sensitivity, accuracy, enlarge usable range.
Technical scheme of the present invention is: total organic carbon total nitrogen combined measuring instrument comprises detecting device, sample feeding and disposal system, its improvements are that described detecting device is made of non-dispersion infrared detector (NDIR) 16 and chemiluminescence detector (CLD) 17 series connection, described sample feeding and disposal system are divided into water sample sample introduction and disposal system and solid sample and contain a large amount of particles, the fluid sample sample introduction and the disposal system of suspension, wherein in water sample sample introduction and the disposal system, the inlet of six-way valve 1 links to each other with syringe pump 2, six outlets respectively with catalytic combustion pipe 5, IC reaction chamber 4, specimen storage device 7, titer reservoir 8 and two waste liquid receivers 3,9 link to each other, described catalytic combustion pipe 5 is located in the oxidizing fire stove 14, its endpiece successively with sample gas refrigerating module 12, TC reaction chamber 6, three-way solenoid valve 10, after membrane type irradiation modules 11 links to each other, link to each other with above-mentioned detecting device again; The endpiece of described IC reaction chamber 4 with after three-way solenoid valve 10, membrane type irradiation modules 11 link to each other, links to each other with above-mentioned detecting device successively again; Solid sample and containing in the fluid sample sample introduction and disposal system of a large amount of particles, suspension, the endpiece that is arranged on the solid high-temp combustion pipe 19 in the solid total nitrogen combustion furnace 20 is successively with after solenoid valve 18, membrane type irradiation modules 11 link to each other, link to each other with above-mentioned detecting device, described IC reaction chamber, TC reaction chamber are respectively equipped with cooling jacket again.
Above-mentioned cooling jacket is semiconductor cooling-part (13) and (15) that are wrapped in IC reaction chamber, TC reactor chamber outer wall; Described six-way valve, syringe pump partly link to each other with computer control respectively.
Adopt suitching type six-way valve and specialized flow injection pump, under computer program control, can finish the various pre-service from sample, the overall process to the sample auto injection makes the instrument compact integral structure, and is simple to operation, improves detection efficiency.
Build up drying water treatment system, adopt the cascade system of sample gas refrigerating module, semiconductor cooling-part, membrane type irradiation modules, thoroughly sample gas is carried out dried, make it before entering NDIR detecting device and CLD detecting device, not contain any moisture content, enlarged the sampling volume of sample, from existing sample introduction 3mL, expand to 5mL, effectively improved the sensitivity and the accuracy of detecting device.
The present invention not only can carry out the detection of total organic carbon and total nitrogen to water sample, also can realize general solid sample such as mud, soil, sediment and the fluid sample that contains a large amount of particles and suspension are carried out the detection of total organic carbon and total nitrogen, really realized the synchronous mensuration of total organic carbon, total nitrogen in the full sample scope, the usable range of instrument is wide.
Description of drawings
Accompanying drawing is each building block syndeton synoptic diagram of the present invention.
Embodiment
Referring to accompanying drawing, the inlet of six-way valve 1 and syringe pump 2 are linked to each other by pipeline, six outlets respectively with catalytic combustion pipe 5, IC reaction chamber 4, specimen storage device 7, titer reservoir 8 links to each other with 9 with two waste liquid receivers 3, catalytic combustion pipe 5 is located in the oxidizing fire stove 14, its endpiece successively with sample refrigerating module 12, TC reaction chamber 6, three-way solenoid valve 10, membrane type irradiation modules 11 and NDIR detecting device 16, CLD detecting device 17 links to each other, the endpiece of IC reaction chamber 4 is examined inferior and three-way solenoid valve 10, membrane type irradiation modules 11 and NDIR, the CLD detecting device links to each other, IC reaction chamber wherein, the TC reacting outdoor wall has semiconductor cooling- part 13 and 15 respectively, the endpiece that is located at the solid high-temp combustion pipe 19 in the solid total nitrogen combustion furnace 20 successively with solenoid valve 18, membrane type irradiation modules 11 and NDIR, the CLD detecting device links to each other.Under computer control, by the switching of six-way valve, extract and push titer, sample liquid by syringe pump, can carry out the automatic cleaning of titer, sample liquid to pipeline.Be expelled in the catalytic combustion pipe 14 when water sample switches through six-way valve, generate gas, enter the TC measurement that the NDIR detecting device carries out sample through refrigerating module 12, TC reaction chamber 6, three-way solenoid valve 10, membrane type irradiation modules 11; Inject IC reaction chamber 4 when water sample switches through six-way valve, resultant of reaction enters the NDIR detecting device through three-way solenoid valve 10, membrane type irradiation modules 11, and the IC that carries out sample measures, and then measures TOC, enters the CLD detecting device again, and the TN that carries out sample measures.Put into the solid high-temp combustion pipe 19 of solid total nitrogen combustion furnace 20 when solid sample or the fluid sample that contains a large amount of particles, suspension, the sample gas that generates is through solenoid valve 18, membrane type irradiation modules 11, enter NDIR detecting device and CLD detecting device, just can measure total organic carbon and total nitrogen in the sample simultaneously.
Claims (3)
1, a kind of total organic carbon total nitrogen combined measuring instrument, comprise detecting device, sample feeding and disposal system, it is characterized in that described detecting device is made of non-dispersion infrared detector (NDIR) (16) and chemiluminescence detector (CLD) (17) series connection, described sample feeding and disposal system are divided into water sample sample introduction and disposal system and solid sample and contain a large amount of particles, the fluid sample sample introduction and the disposal system of suspension, wherein in water sample sample introduction and the disposal system, the inlet of six-way valve (1) links to each other with syringe pump (2), six outlets respectively with catalytic combustion pipe (5), IC reaction chamber (4), specimen storage device (7), titer reservoir (8) and two waste liquid receivers (3), (9) link to each other, described catalytic combustion pipe (5) is located in the oxidizing fire stove (14), its endpiece successively with sample gas refrigerating module (12), TC reaction chamber (6), three-way solenoid valve (10), membrane type irradiation modules (11) links to each other with above-mentioned detecting device after linking to each other again; The endpiece of described IC reaction chamber (4) with after three-way solenoid valve (10), membrane type irradiation modules (11) link to each other, links to each other with above-mentioned detecting device successively again; Solid sample and containing in the fluid sample sample introduction and disposal system of a large amount of particles, suspension, the endpiece that is arranged on the solid high-temp combustion pipe (19) in the solid total nitrogen combustion furnace (20) is successively with after solenoid valve (18), membrane type irradiation modules (11) link to each other, link to each other with above-mentioned detecting device, described IC reaction chamber, TC reaction chamber are respectively equipped with cooling jacket again.
2, by the described total organic carbon total nitrogen combined measuring instrument of claim 1, it is characterized in that described cooling jacket is semiconductor cooling-part (13) and (15) that are wrapped in IC reaction chamber, TC reactor chamber outer wall.
3, by the described total organic carbon total nitrogen combined measuring instrument of claim 1, it is characterized in that described six-way valve, syringe pump partly link to each other with computer control respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100199170A CN101241067A (en) | 2008-03-14 | 2008-03-14 | Total organic carbon total nitrogen combined measuring instrument |
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| CNA2008100199170A CN101241067A (en) | 2008-03-14 | 2008-03-14 | Total organic carbon total nitrogen combined measuring instrument |
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| CN101241067A true CN101241067A (en) | 2008-08-13 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101825641A (en) * | 2010-04-22 | 2010-09-08 | 马三剑 | Water quality total nitrogen on-line automatic monitoring device |
| CN101788493B (en) * | 2010-01-19 | 2011-07-27 | 成都海兰天澄科技有限公司 | Method for testing ammonia nitrogen in water |
| CN102410988A (en) * | 2011-12-02 | 2012-04-11 | 泰安市科瑞光学仪器有限公司 | Infrared TOC (total organic carbon) analyzer |
| CN102879590A (en) * | 2012-10-15 | 2013-01-16 | 国家***第二海洋研究所 | Automatic acidification reaction device for seawater sample |
| CN103080683A (en) * | 2010-08-27 | 2013-05-01 | 朗盛德国有限责任公司 | High-temperature furnace, use of a spinel ceramic and method for carrying out T(O)C measurements of samples |
| CN103529162A (en) * | 2013-10-29 | 2014-01-22 | 四川农业大学 | Determination method for total organic carbon (TOC) of solid combustible matters |
| CN105705943A (en) * | 2013-10-23 | 2016-06-22 | 哈希公司 | Carbon analysis using ferrate oxidation |
-
2008
- 2008-03-14 CN CNA2008100199170A patent/CN101241067A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101788493B (en) * | 2010-01-19 | 2011-07-27 | 成都海兰天澄科技有限公司 | Method for testing ammonia nitrogen in water |
| CN101825641A (en) * | 2010-04-22 | 2010-09-08 | 马三剑 | Water quality total nitrogen on-line automatic monitoring device |
| CN101825641B (en) * | 2010-04-22 | 2013-03-27 | 马三剑 | Water quality total nitrogen on-line automatic monitoring device |
| CN103080683A (en) * | 2010-08-27 | 2013-05-01 | 朗盛德国有限责任公司 | High-temperature furnace, use of a spinel ceramic and method for carrying out T(O)C measurements of samples |
| CN102410988A (en) * | 2011-12-02 | 2012-04-11 | 泰安市科瑞光学仪器有限公司 | Infrared TOC (total organic carbon) analyzer |
| CN102879590A (en) * | 2012-10-15 | 2013-01-16 | 国家***第二海洋研究所 | Automatic acidification reaction device for seawater sample |
| CN105705943A (en) * | 2013-10-23 | 2016-06-22 | 哈希公司 | Carbon analysis using ferrate oxidation |
| CN105705943B (en) * | 2013-10-23 | 2019-06-14 | 哈希公司 | Carbon analysis is carried out using ferrate oxidation |
| CN103529162A (en) * | 2013-10-29 | 2014-01-22 | 四川农业大学 | Determination method for total organic carbon (TOC) of solid combustible matters |
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Open date: 20080813 |