CN105466858A - Integrated digestion colorimetric pool - Google Patents
Integrated digestion colorimetric pool Download PDFInfo
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- CN105466858A CN105466858A CN201510813127.XA CN201510813127A CN105466858A CN 105466858 A CN105466858 A CN 105466858A CN 201510813127 A CN201510813127 A CN 201510813127A CN 105466858 A CN105466858 A CN 105466858A
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- color comparison
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- comparison tube
- sealed casing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
- G01N21/03—Cuvette constructions
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- Health & Medical Sciences (AREA)
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Abstract
The invention provides an integrated digestion colorimetric pool, which comprises a colorimetric pipe mounting base, a colorimetric pipe, colorimetric pipe fixing bolts, reagent tube fastening bolts, sealed casing rings and seal rings. A threaded hole and a through hole are arranged in each colorimetric pipe fixing bolt. Each sealed casing ring penetrates inside the corresponding through hole. Each reagent tube fastening bolt is in screw joint on the corresponding threaded hole, and the bottom of the reagent tube fastening bolt is pressed on the upper part of the corresponding sealed casing ring. The bottom of the sealed casing ring is provided with the corresponding seal ring. The colorimetric pipe fixing bolts are respectively threaded on the colorimetric pipe mounting base, and are respectively in joint seal with interfaces of the colorimetric pipe by the utilization of the seal rings in the sealed casing rings. By sealing pipe interfaces of the colorimetric pipe by the use of the Teflon sealed casing rings and the fluororubber seal rings, the integrated digestion colorimetric pool is resistant to high temperature and corrosion, service life of the integrated digestion colorimetric pool is prolonged, sealing effect is enhanced, leakage of a reagent can be effectively prevented, sample amount for detection and consumption of a reagent are reduced, and emission pollution of waste liquids is also minimized.
Description
Technical field
The present invention relates in spectroscopic methodology colorimetric analysis for Specimen eliminating reaction and acknowledge(ment) signal light source irradiation clear up colorimetric pool, especially relate to a kind of integral type and clear up colorimetric pool.
Background technology
At present, photoelectric colorimetry is widely used in chemical analysis, particularly in water quality monitoring field, easy and simple to handle, rapid, reliable.This method adopts chemical reagent and the tested component reaction of sample solution (call in the following text and clear up reaction) and solution is developed the color, after specific wavelength monochromatic light exposure, the absorbance of digestion solution is measured with photoelectric color comparator device, then contrast with pre-rendered standard working curve, obtain concentration or the content of the tested component of sample as calculated.In order to raise the efficiency and reduce the error that operating process brings, at present the integral type that adopts clears up colorimetric pool more, clears up reaction and During Illumination completes same clearing up in colorimetric pool.
The main body that existing integral type clears up colorimetric pool mostly is the consistent clear glass straight tube of diameter, carry out clearing up reaction in sample and reagent mixed liquor access tube, along with the generation of reactant, solution develops the color gradually, reaction completes, the monochromatic light radial direction of certain wavelength is injected glass straight tube, and incident light, through the colored solutions in pipe, then records the concentration data of tested component by photoelectric color comparator.
The general 12-20mm of light path due to sample solution illumination, the overall caliber that straight pipe type clears up colorimetric pool is consistent with light path, cause the volume clearing up colorimetric pool very large, reagent total amount required for unitary determination is at least at more than 4mL, many persons can reach 10mL, not only waste reagent, and the waste liquid of discharge after analyzing also causes larger secondary pollution.
Summary of the invention
A kind of integral type is the object of the present invention is to provide to clear up colorimetric pool, to solve the defect that in prior art, colorimetric pool exists.
In order to solve the problems of the technologies described above, the invention provides a kind of integral type and clearing up colorimetric pool, comprising:
Color comparison tube mount pad, color comparison tube, color comparison tube set bolt, Reagent Tube fastening bolt, Sealed casing pipe and O-ring seal;
Being provided with the mounting groove for placing color comparison tube in described color comparison tube mount pad, the two end plates up and down of described color comparison tube mount pad being respectively equipped with the hickey for installing color comparison tube set bolt;
Described color comparison tube comprises pipe in the longitudinal direction that is communicated with successively, intervalve and longitudinal lower pipe, and described intervalve is held concurrently as optical channel;
Described color comparison tube set bolt inside is provided with the threaded hole and through hole that are connected from top to bottom, and described Sealed casing pipe is installed in described through hole; Described Reagent Tube fastening bolt is screwed onto on described threaded hole, and be pressed together on Sealed casing pipe top bottom Reagent Tube fastening bolt, describedly bottom Sealed casing pipe, be provided with O-ring seal mounting groove, described O-ring seal is arranged in described O-ring seal mounting groove, color comparison tube set bolt respectively spiral shell is contained on the hickey of the upper and lower two end plates of color comparison tube mount pad, utilize simultaneously the O-ring seal in Sealed casing pipe respectively with longitudinally upper manage and longitudinally under the interface of pipe carry out engaging and seal.
Further, the side plate of described color comparison tube mount pad is provided with emissive source holder, and described emissive source holder is provided with the light source hole be communicated with side plate.
Further, another side plate of described color comparison tube mount pad is provided with reception source holder, and described reception source holder is provided with the reception source aperture be communicated with side plate.
Further, arbitrary side plate of described color comparison tube mount pad is provided with signal wire holder.
Further, be provided with perforation in the middle part of described Reagent Tube fastening bolt, the feed tube be installed on Reagent Tube fastening bolt is connected with Sealed casing pipe, for passing into reagent in longitudinal lower pipe; The gas outlet be installed on Reagent Tube fastening bolt is longitudinally above managed with another and is connected, and gas outlet is also connected with vent valve.
Further, in described longitudinal direction, pipe, intervalve are managed as being connected successively and the integral tube communicated continuously with longitudinally lower.
Further, in described longitudinal direction, the internal diameter of pipe and longitudinal lower pipe all reduces at interface position.
Further, the tube wall of described color comparison tube is provided with binding ring, wrapping post and limited post, for contrasting the tube wall of heating wire winding on color comparison tube and the wrapping post of colour tube heating, the end butting of heating wire is on binding ring, and limited post is for spacing to the heating wire be wrapped on color comparison tube.
Further, described Sealed casing pipe adopts Teflon material.
Further, described O-ring seal is fluororubber material.
Adopt technique scheme, the technique effect that the present invention produces has: it is for Specimen eliminating reaction provides example reaction place in spectroscopic methodology colorimetric analysis that integral type of the present invention clears up colorimetric pool, light beam accepts source aperture through light source hole through penetrating after sample, utilize reception source receiving feedback information, calculate through micro computer and just can draw the pollutant load measured in sample, for automatic measurement provides obligato place, improve the process of industrialization of environment monitoring;
The diameter of upper and lower two longitudinal pipes of this product all can obviously reduce, therefore the total measurement (volume) originally clearing up colorimetric pool obviously reduces compared to traditional straight pipe type digestion pool, withstand voltage properties significantly improves, and the pressure that inside is born can reach more than 4 times of general digestion colorimetric pool.Save the consumption of sample size and the reagent detected simultaneously;
The interface tube of the big envelope pipe of this product utilization Teflon material and the O-ring seal contrast colour tube of fluororubber material seals, high temperature resistant, corrosion-resistant, increase the service life, improve sealing effectiveness, effectively can prevent the leakage of reagent, save the consumption of sample size and the reagent detected, also reduce the exhaust emission of waste liquid.
Accompanying drawing explanation
In order to be illustrated more clearly in the specific embodiment of the invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the embodiment of the present invention one;
Fig. 2 is the decomposition texture schematic diagram of embodiment illustrated in fig. 1;
Fig. 3 is the structural representation of color comparison tube set bolt;
Fig. 4 is the structural representation of Sealed casing pipe;
Fig. 5 is Reagent Tube fastening bolt;
Fig. 6 is the structural representation of the embodiment of the present invention two;
Fig. 7 is for executing the decomposition texture schematic diagram of example two shown in Fig. 2;
Reference numeral:
1-color comparison tube mount pad; 2-color comparison tube; 3-color comparison tube set bolt;
4-Reagent Tube fastening bolt; 5-Sealed casing pipe; 6-O-ring seal;
7-emissive source holder; 8-receives source holder; 9-signal wire holder;
10-heating wire; 11-mounting groove; 12-hickey;
21-longitudinal direction is managed; 22-intervalve; 23-is lower pipe longitudinally;
24-binding ring; 25-wrapping post; 26-limited post
31-threaded hole; 32-through hole; 51-O-ring seal mounting groove;
71-light source hole; 81-receives source aperture.
Embodiment
Be clearly and completely described technical scheme of the present invention below in conjunction with accompanying drawing, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
In describing the invention, it should be noted that, orientation or the position relationship of the instruction such as term " " center ", " on ", D score, "left", "right", " vertically ", " level ", " interior ", " outward " they be based on orientation shown in the drawings or position relationship; be only the present invention for convenience of description and simplified characterization; instead of instruction or imply the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as limitation of the present invention.In addition, term " first ", " second ", " the 3rd " only for describing object, and can not be interpreted as instruction or hint relative importance.
Carry out describing to technical solution of the present invention below by following embodiment.
Embodiment one
As depicted in figs. 1 and 2, the integral type that the embodiment of the present invention one provides clears up structural drawing and the exploded view of colorimetric pool.
Integral type provided by the invention clears up colorimetric pool, comprising: color comparison tube mount pad 1, color comparison tube 2, color comparison tube set bolt 3, Reagent Tube fastening bolt 4, Sealed casing pipe 5 and O-ring seal 6;
Being provided with the mounting groove 11 for placing color comparison tube in color comparison tube mount pad 1, the two end plates up and down of color comparison tube mount pad 1 being respectively equipped with the hickey 12 for installing color comparison tube set bolt 3;
Color comparison tube 2 comprises longitudinally upper pipe 21, intervalve 22 and longitudinal lower pipe 23, in described longitudinal direction, pipe 21, intervalve 22 are the integral tube being connected successively and communicating continuously with longitudinal lower pipe 23, intervalve 22 is held concurrently as optical channel uses, the diameter of intervalve is greater than the diameter of longitudinally upper pipe 21 and longitudinal lower pipe 23, further, in described longitudinal direction, the internal diameter of pipe 21 and longitudinal lower pipe 23 all reduces at interface position.
The caliber of the intervalve of this product requires to arrange according to light path, the diameter of upper and lower two longitudinal pipes all can obviously reduce relative to intervalve, originally the total measurement (volume) clearing up colorimetric pool is obviously reduced compared to traditional straight pipe type digestion pool, withstand voltage properties significantly improves, save the consumption of sample size and the reagent detected simultaneously, also reduce the exhaust emission of waste liquid.
As shown in Figure 3, color comparison tube set bolt 3 inside is provided with the threaded hole 31 and through hole 32 that are connected from top to bottom, and Sealed casing pipe 5 is installed in described through hole 32; Sealed casing pipe 5 adopts Teflon material, has the feature of antiacid alkali resistant, anti-various organic solvent; Reagent Tube fastening bolt 4 is screwed onto on described threaded hole 31, and is pressed together on Sealed casing pipe top bottom Reagent Tube fastening bolt 4;
As shown in Figure 4, bottom Sealed casing pipe 5, be provided with O-ring seal mounting groove 51, O-ring seal 6 is arranged in O-ring seal mounting groove 51 by bonding etc. mode, and O-ring seal mounting groove 51 is pressed together on the interface tube of color comparison tube, for sealing interface tube place, placing and revealing.O-ring seal 6 in the present embodiment is fluororubber material, because fluororubber has favorable elasticity, high temperature resistant, oil resistant, resistance to high vacuum and acid and alkali-resistance, resistant to many chemicals, can more effectively contrast colour tube ferrule, stops the leakage of reagent.
Color comparison tube set bolt 3 respectively spiral shell is contained on the hickey 12 of color comparison tube mount pad about 1 two end plates, meanwhile, utilize the O-ring seal 6 in Sealed casing pipe 5 respectively with longitudinal upper pipe 21 and longitudinally the interface of lower pipe 23 carry out engaging and seal.
As shown in Figure 5, in the middle part of Reagent Tube fastening bolt 4, be provided with through hole; The feed tube be installed on Reagent Tube fastening bolt 4 is connected with Sealed casing pipe 5, for passing into reagent in longitudinal lower pipe 23, being connected, gas outlet is also connected with vent valve with the gas outlet be installed on Reagent Tube fastening bolt 4 and another longitudinal upper pipe 21.Both can be used for closing in longitudinal upper pipe 23, can be used for again exhaust.
The side plate of color comparison tube mount pad 1 is provided with emissive source holder 7, emissive source holder 7 is provided with the light source hole 71 be communicated with side plate, and emissive source is arranged on described emissive source holder 7, and passes through light source hole 71 by lit transmissive on the intervalve of color comparison tube.
Another side plate of color comparison tube mount pad 1 is provided with reception source holder 8, receives source holder 8 and is provided with the reception source aperture 81 be communicated with side plate.Reception source is arranged on reception source holder 8, receives the light source through intervalve by reception source aperture 81.
Arbitrary side plate of color comparison tube mount pad 1 is provided with signal wire holder 9.Facilitate the fixed installation of signal wire.
In the longitudinal direction that the present invention utilizes the Sealed casing pipe 5 that is arranged in color comparison tube set bolt 3 and O-ring seal 6 to contrast colour tube, the tubular construction of pipe 21 and longitudinal lower pipe 23 seals, by regulating the height of the Reagent Tube fastening bolt 4 be pressed together on Sealed casing pipe 5, and then adjustment pressure force, by Sealed casing pipe 5 and O-ring seal 6 compacting on the mouth of pipe of color comparison tube, sealing property can be ensured.
Embodiment two
As shown in Figure 6 and Figure 7, the integral type that the embodiment of the present invention two provides clears up structural representation and the exploded view of colorimetric pool.
Integral type provided by the invention clears up colorimetric pool, comprising: color comparison tube mount pad 1, color comparison tube 2, color comparison tube set bolt 3, Reagent Tube fastening bolt 4, Sealed casing pipe 5 and O-ring seal 6;
Being provided with the mounting groove 11 for placing color comparison tube in color comparison tube mount pad 1, the two end plates up and down of color comparison tube mount pad 1 being respectively equipped with the hickey 12 for installing color comparison tube set bolt 3;
Color comparison tube 2 comprises longitudinally upper pipe 21, intervalve 22 and longitudinal lower pipe 23, in described longitudinal direction, pipe 21, intervalve 22 are the integral tube being connected successively and communicating continuously with longitudinal lower pipe 23, intervalve 22 is held concurrently as optical channel uses, the diameter of intervalve is greater than the diameter of longitudinally upper pipe 21 and longitudinal lower pipe 23, further, in described longitudinal direction, the internal diameter of pipe 21 and longitudinal lower pipe 23 all reduces at interface position.
With reference to Fig. 3, color comparison tube set bolt 3 inside is provided with the threaded hole 31 and through hole 32 that are connected from top to bottom, and Sealed casing pipe 5 is installed in described through hole 32; Sealed casing pipe 5 adopts Teflon material, has the feature of antiacid alkali resistant, anti-various organic solvent; Reagent Tube fastening bolt 4 is screwed onto on described threaded hole 31, and is pressed together on Sealed casing pipe top bottom Reagent Tube fastening bolt 4;
Bottom Sealed casing pipe 5, be provided with O-ring seal mounting groove 51 with reference to Fig. 4, O-ring seal 6 is arranged in O-ring seal mounting groove 51 by bonding etc. mode, and O-ring seal mounting groove 51 is pressed together on the interface tube of color comparison tube, for sealing interface tube place, placing and revealing.O-ring seal 6 in the present embodiment is fluororubber material, because fluororubber has favorable elasticity, high temperature resistant, oil resistant, resistance to high vacuum and acid and alkali-resistance, resistant to many chemicals, can more effectively contrast colour tube ferrule, stops the leakage of reagent.
Color comparison tube set bolt 3 respectively spiral shell is contained on the hickey 12 of color comparison tube mount pad about 1 two end plates, meanwhile, utilize the O-ring seal 6 in Sealed casing pipe 5 respectively with longitudinal upper pipe 21 and longitudinally the interface of lower pipe 23 carry out engaging and seal.
With reference to Fig. 5, through hole is provided with in the middle part of Reagent Tube fastening bolt 4, the feed tube be installed on Reagent Tube fastening bolt 4 is connected with Sealed casing pipe 5, for passing into reagent in longitudinal lower pipe 23, be connected with the longitudinal upper pipe 21 of the gas outlet be installed on Reagent Tube fastening bolt 4 and another, gas outlet is also connected with vent valve.Both can be used for closing in longitudinal upper pipe 23, can be used for again exhaust.
The side plate of color comparison tube mount pad 1 is provided with emissive source holder 7, emissive source holder 7 is provided with the light source hole 71 be communicated with side plate, and emissive source is arranged on described emissive source holder 7, and passes through light source hole 71 by lit transmissive on the intervalve of color comparison tube.
Another side plate of color comparison tube mount pad 1 is provided with reception source holder 8, receives source holder 8 and is provided with the reception source aperture 81 be communicated with side plate.Reception source is arranged on reception source holder 8, receives the light source through intervalve by reception source aperture 81.
Arbitrary side plate of color comparison tube mount pad 1 is provided with signal wire holder 9, facilitates the fixed installation of signal wire.
In the present embodiment, the tube wall of color comparison tube 2 is provided with binding ring 24, wrapping post 25 and limited post 26, heating wire 10 for contrasting colour tube heating is wrapped in tube wall on color comparison tube 2 and wrapping post 25, the end butting of heating wire 10 is on binding ring 24, and limited post 26 is for carrying out spacing to the heating wire 10 be wrapped on color comparison tube 2.
Adopt technical scheme of the present invention, the following technique effect possessed:
Integral type of the present invention clear up colorimetric pool be in spectroscopic methodology colorimetric analysis Specimen eliminating reaction provide example reaction place, light beam accepts source aperture through light source hole through penetrating after sample, utilize reception source receiving feedback information, calculate through instrument main circuit board chip and just can draw the pollutant load measured in sample, for automatic measurement provides obligato place, improve the process of industrialization of environment monitoring.
The interface tube of the big envelope pipe of this product utilization Teflon material and the O-ring seal contrast colour tube of fluororubber material seals, high temperature resistant, corrosion-resistant, increase the service life, improve sealing effectiveness, effectively can prevent the leakage of reagent, save the consumption of sample size and the reagent detected, also reduce the exhaust emission of waste liquid.
In describing the invention, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, concrete condition above-mentioned term concrete meaning in the present invention can be understood.
Last it is noted that above each embodiment is only in order to illustrate technical scheme of the present invention, be not intended to limit; Although with reference to foregoing embodiments to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein some or all of technical characteristic; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of various embodiments of the present invention technical scheme.
Claims (10)
1. integral type clears up a colorimetric pool, it is characterized in that, comprising: color comparison tube mount pad, color comparison tube, color comparison tube set bolt, Reagent Tube fastening bolt, Sealed casing pipe and O-ring seal;
Being provided with the mounting groove for placing color comparison tube in described color comparison tube mount pad, the two end plates up and down of described color comparison tube mount pad being respectively equipped with the hickey for installing color comparison tube set bolt;
Described color comparison tube comprises pipe in the longitudinal direction that is communicated with successively, intervalve and longitudinal lower pipe, and described intervalve is held concurrently as optical channel;
Described color comparison tube set bolt inside is provided with the threaded hole and through hole that are connected from top to bottom, and described Sealed casing pipe is installed in described through hole; Described Reagent Tube fastening bolt is screwed onto on described threaded hole, and be pressed together on Sealed casing pipe top bottom Reagent Tube fastening bolt, describedly bottom Sealed casing pipe, be provided with O-ring seal mounting groove, described O-ring seal is arranged in described O-ring seal mounting groove, color comparison tube set bolt respectively spiral shell is contained on the hickey of the upper and lower two end plates of color comparison tube mount pad, utilize simultaneously the O-ring seal in Sealed casing pipe respectively with longitudinally upper manage and longitudinally under the interface of pipe carry out engaging and seal.
2. integral type according to claim 1 clears up colorimetric pool, it is characterized in that: the side plate of described color comparison tube mount pad is provided with emissive source holder, and described emissive source holder is provided with the light source hole be communicated with side plate.
3. integral type according to claim 2 clears up colorimetric pool, it is characterized in that: another side plate of described color comparison tube mount pad is provided with reception source holder, and described reception source holder is provided with the reception source aperture be communicated with side plate.
4. integral type according to claim 1 clears up colorimetric pool, it is characterized in that: arbitrary side plate of described color comparison tube mount pad is provided with signal wire holder.
5. integral type according to claim 1 clears up colorimetric pool, it is characterized in that: be provided with perforation in the middle part of described Reagent Tube fastening bolt, and the feed tube be installed on Reagent Tube fastening bolt is connected with Sealed casing pipe, for passing into reagent in longitudinal lower pipe; The gas outlet be installed on Reagent Tube fastening bolt is longitudinally above managed with another and is connected, and gas outlet is also connected with vent valve.
6. integral type according to claim 1 clears up colorimetric pool, it is characterized in that: in described longitudinal direction, pipe, intervalve are managed as being connected successively and the integral tube communicated continuously with longitudinally lower.
7. integral type according to claim 7 clears up colorimetric pool: it is characterized in that: in described longitudinal direction, the internal diameter of pipe and longitudinal lower pipe all reduces at interface position.
8. clear up colorimetric pool according to the arbitrary described integral type of claim 1, it is characterized in that: the tube wall of described color comparison tube is provided with binding ring, wrapping post and limited post, for contrasting the tube wall of heating wire winding on color comparison tube and the wrapping post of colour tube heating, the end butting of heating wire is on binding ring, and limited post is for spacing to the heating wire be wrapped on color comparison tube.
9. integral type according to claim 1 clears up colorimetric pool, it is characterized in that: described Sealed casing pipe adopts Teflon material.
10. integral type according to claim 1 clears up colorimetric pool, it is characterized in that: described O-ring seal is fluororubber material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510813127.XA CN105466858B (en) | 2015-11-20 | 2015-11-20 | Integrated digestion colorimetric pool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510813127.XA CN105466858B (en) | 2015-11-20 | 2015-11-20 | Integrated digestion colorimetric pool |
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| Publication Number | Publication Date |
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| CN105466858A true CN105466858A (en) | 2016-04-06 |
| CN105466858B CN105466858B (en) | 2017-04-26 |
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| CN201510813127.XA Active CN105466858B (en) | 2015-11-20 | 2015-11-20 | Integrated digestion colorimetric pool |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106053202A (en) * | 2016-06-12 | 2016-10-26 | 山东思睿环境设备科技有限公司 | High-temperature and high-pressure digestion and colorimetry device |
| CN106124287A (en) * | 2016-06-13 | 2016-11-16 | 山东思睿环境设备科技有限公司 | High Temperature High Pressure clears up fiber ratio color system |
| CN109142021A (en) * | 2018-09-19 | 2019-01-04 | 厦门斯坦道科学仪器股份有限公司 | A kind of technique and its device of combined digestion total phosphorus and total nitrogen |
| CN110221020A (en) * | 2019-07-04 | 2019-09-10 | 施国栋 | A kind of COD detection device and method |
| CN110907371A (en) * | 2019-11-26 | 2020-03-24 | 中国地质调查局水文地质环境地质调查中心 | On-site detection reagent tube for ferric ions in water and detection method |
| CN118010715A (en) * | 2024-02-19 | 2024-05-10 | 无锡宇邦半导体科技有限公司 | Digestion colorimetric device based on semiconductor refrigerator |
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| CN118010715B (en) * | 2024-02-19 | 2024-07-12 | 无锡宇邦半导体科技有限公司 | Digestion colorimetric device based on semiconductor refrigerator |
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|---|---|
| CN105466858B (en) | 2017-04-26 |
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