CN116519436A - Digestion device with filtering function - Google Patents
Digestion device with filtering function Download PDFInfo
- Publication number
- CN116519436A CN116519436A CN202310491778.6A CN202310491778A CN116519436A CN 116519436 A CN116519436 A CN 116519436A CN 202310491778 A CN202310491778 A CN 202310491778A CN 116519436 A CN116519436 A CN 116519436A
- Authority
- CN
- China
- Prior art keywords
- digestion
- digestion device
- filtering
- sample
- filtering membrane
- 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
- 230000029087 digestion Effects 0.000 title claims abstract description 66
- 238000001914 filtration Methods 0.000 title claims abstract description 46
- 239000012528 membrane Substances 0.000 claims abstract description 30
- 238000006243 chemical reaction Methods 0.000 claims abstract description 14
- 238000001514 detection method Methods 0.000 claims abstract description 11
- 239000003153 chemical reaction reagent Substances 0.000 claims abstract description 3
- 239000007788 liquid Substances 0.000 claims abstract description 3
- 239000000919 ceramic Substances 0.000 claims description 4
- 239000011521 glass Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 239000011148 porous material Substances 0.000 claims description 4
- 239000010453 quartz Substances 0.000 claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- 238000011161 development Methods 0.000 abstract description 3
- 238000005259 measurement Methods 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 2
- 239000002245 particle Substances 0.000 description 7
- 238000004458 analytical method Methods 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000000149 argon plasma sintering Methods 0.000 description 1
- 238000003556 assay Methods 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000002798 spectrophotometry method Methods 0.000 description 1
- 238000011410 subtraction method Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/44—Sample treatment involving radiation, e.g. heat
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/34—Purifying; Cleaning
-
- 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
-
- 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
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- Chemical & Material Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Molecular Biology (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention discloses a digestion device with filtering, wherein a filtering membrane is arranged in the digestion device, an inlet and an outlet are arranged on the digestion device, a sample to be tested enters from the inlet of the digestion device, passes through the filtering membrane to reach a photoelectric colorimetric layer, the sample to be tested on two sides of the filtering membrane is digested simultaneously, digested liquid on two sides of the filtering membrane is uniformly mixed on the colorimetric layer after digestion, and then a reaction reagent is added to carry out a color development reaction and carry out photoelectric detection. The digestion device integrates filtering, digestion and colorimetric detection, can realize the filtering and digestion of a water sample in one digestion device, can also perform photometric colorimetric detection, and can be widely applied to application sites with deviation of a measurement result caused by excessive chromaticity or turbidity of the sample.
Description
Technical Field
The invention relates to the field of chemical analysis instruments, in particular to a digestion device with filtering.
Background
In the course of chemical analysis using spectrophotometry, there are many analytical items that require sample carrying particles to participate in digestion, and particles must be removed during colorimetric detection to avoid deviations in the assay results due to spurious absorption by light scattering caused by the particles. In the manual analysis, the influence of turbidity is eliminated by means of manual filtration, centrifugation and the like on the sample or the reaction solution. However, in the fully automatic analysis, in the case that the digestion reactor and the cuvette are the same vessel, the particle separation of the sample or the reaction solution needs to be implemented by adding a complicated device to an automatic monitoring instrument. The interference of turbidity is removed by using a background subtraction method with non-absorption wavelength, but the fluctuation of the test result is large due to the non-uniformity of the particle diameter, so that the analysis requirement is difficult to meet.
Aiming at the situation, the invention provides the digestion device with the digestion-resistant filtering membrane, which integrates filtering, digestion and colorimetric detection, and can realize the filtering digestion of a water sample and photometric colorimetric detection in one digestion device.
Disclosure of Invention
The invention discloses a digestion device with a digestion-resistant filtering membrane, wherein the digestion device is internally provided with the filtering membrane, an inlet and an outlet are arranged on the digestion device, a sample to be tested enters from the inlet of the digestion device, passes through the filtering membrane to reach a photoelectric colorimetric layer, the sample to be tested on two sides of the filtering membrane is digested simultaneously, digested liquid on two sides of the filtering membrane is uniformly mixed on the colorimetric layer after digestion, then a reaction reagent is added for color development reaction and photoelectric detection, and the digestion device integrates filtering, digestion and colorimetric detection.
Further, the filtering membrane can be arranged below, in the middle and above the digestion device, and the position of the filtering membrane is determined according to actual needs.
Further, the pore size of the filtering membrane can be 1 micron, 2 microns, 3 microns, 4 microns, 5 microns, etc., and the pore size can be determined according to practical needs.
Further, the digestion device is made of materials such as glass, quartz, ceramic, metal and the like.
Further, the filtering membrane is made of materials resistant to digestion reaction such as glass, quartz, ceramic, metal and the like.
The digestion device with filtering is characterized in that the digestion device is internally provided with the filtering membrane with digestion reaction resistance, and the filtering membranes with different apertures can be selected according to different processing requirements on samples, so that the filtering and digestion of the samples are realized in the digestion device, and further the photoelectric color comparison is carried out, so that particles participate in the digestion reaction under the same condition, and measurement inaccuracy caused by false absorption due to redundant particle scattering is avoided.
Drawings
FIG. 1 is a schematic diagram of a filter digestion unit according to the present invention.
FIG. 2 is a schematic illustration of the fixed installation of the filter digestion unit of the present invention.
FIG. 3 is a schematic diagram showing the structure of a flow cell type digester with filtration according to the present invention
FIG. 4 is a schematic view showing the fixed installation of a flow cell type digester with filtration according to the present invention
In the figure, 1-a filtering membrane; 2-a temperature measuring groove; 3-an upper threaded joint; 4-lower threaded joint; 5-the emitting end of the light source; 6-a receiving end of the light source; 7-fixing device, 8-flow cell.
Description of the embodiments
The filter digestion unit of the present application is further described below with reference to the accompanying drawings.
Examples
As shown in fig. 1, a filtering membrane (1) resistant to digestion reaction is arranged in a digestion device with filtering, an upper joint (3) is arranged at the top of the digestion device, a lower joint (4) is arranged at the bottom of the digestion device, one end of each of the upper joint (3) and the lower joint (4) is connected with the digestion device, the digestion device integrates filtering, digestion and colorimetric detection, and digestion and filtering of a sample or a reaction solution can be realized in one digestion device, and photometric colorimetric detection can be performed.
During the use, electric heating wire twines on the digestion ware, and the upper and lower end of digestion ware is fixed with screwed joint (3, 4) respectively to install on fixing device (7) through screwed joint (3, 4) at upper and lower both ends, place the thermoscope in thermoscope (2), be used for controlling the heating digestion process of digestion ware, the top of filtration membrane is arranged respectively in to transmitting end (5) and receiving end (6) of light source, is used for detecting the signal value after the sample color development is cleared up in the filtering.
Examples
As shown in fig. 3, the filtering membrane (1) is also arranged in the flow cell type digestion device with filtering, the top and the bottom of the digestion device are respectively provided with an upper joint (3) and a lower joint (4), the digestion device is fixedly arranged on a fixing device (7), meanwhile, a flow cell (8) is also arranged above the filtering membrane (1), and the left end and the right end of the flow cell are provided with a light source emitting end and a light source receiving end. When the digestion device is used, a heating wire is wound on the digestion device, the digestion process is controlled through a temperature sensor in the temperature measuring groove, a color reaction is carried out above the filtering membrane (1), and the signal value of a sample in the flow cell is detected through the light source emitting ends and the photoelectric receiving ends at the left end and the right end of the flow cell (8).
The foregoing is merely illustrative of the present invention, and is not intended to limit the scope of the present invention.
Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. The invention discloses a digestion device with filtering, which is characterized in that: the digestion device is internally provided with a filter membrane, an inlet and an outlet are formed in the digestion device, a sample to be tested enters from the inlet of the digestion device, passes through the filter membrane to reach the photoelectric colorimetric layer, the sample to be tested on two sides of the filter membrane is digested simultaneously, digested liquid on two sides of the filter membrane is uniformly mixed on the colorimetric layer after digestion, and then a reaction reagent is added to carry out a color reaction and carry out photoelectric detection.
2. A filtered digester as claimed in claim 1 wherein: the filtering membrane can be arranged below, in the middle and above the digestion device, and the position of the filtering membrane is determined according to actual needs.
3. A filtered digester as claimed in claim 1 wherein: the pore diameter of the filtering membrane can be 1 micron, 2 microns, 3 microns, 4 microns, 5 microns and the like, and the pore size can be determined according to actual needs.
4. A filtered digester as claimed in claim 1 wherein: the digestion device is made of materials such as glass, quartz, ceramic, metal and the like.
5. A filtered digester as claimed in claim 1 wherein: the filtering membrane is made of digestion-resistant materials such as glass, quartz, ceramic, metal and the like.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310491778.6A CN116519436A (en) | 2023-05-05 | 2023-05-05 | Digestion device with filtering function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310491778.6A CN116519436A (en) | 2023-05-05 | 2023-05-05 | Digestion device with filtering function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116519436A true CN116519436A (en) | 2023-08-01 |
Family
ID=87404320
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310491778.6A Pending CN116519436A (en) | 2023-05-05 | 2023-05-05 | Digestion device with filtering function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116519436A (en) |
-
2023
- 2023-05-05 CN CN202310491778.6A patent/CN116519436A/en active Pending
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