CN219201627U - Automatic analysis system for formaldehyde content in textile - Google Patents
Automatic analysis system for formaldehyde content in textile Download PDFInfo
- Publication number
- CN219201627U CN219201627U CN202320239340.4U CN202320239340U CN219201627U CN 219201627 U CN219201627 U CN 219201627U CN 202320239340 U CN202320239340 U CN 202320239340U CN 219201627 U CN219201627 U CN 219201627U
- Authority
- CN
- China
- Prior art keywords
- sample injection
- sample
- detection
- light source
- flow cell
- 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.)
- Active
Links
Images
Classifications
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
Landscapes
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The utility model discloses an automatic analysis system for formaldehyde content in textiles, which comprises: ultraviolet spectrophotometer, cuvette of flow cell, automatic sample feeding device, PLC controller, industrial computer, etc. According to the utility model, a sample is pumped into a cuvette of the flow cell through the automatic sample injection device, the formaldehyde solution in the cuvette of the flow cell is irradiated by ultraviolet light in the aster spectrophotometer to obtain light source data, data analysis is completed, the data is uploaded to monitoring software, and after detection is completed, the automatic sample injection device automatically cleans the whole system to detect the next sample. The whole process does not need to be manually participated, the formaldehyde detection efficiency of the textile can be improved, the influence of human factors on the detection result is avoided, the working intensity of the detection personnel is reduced, meanwhile, the harm of detection reagents to operators is avoided, and the automatic detection of the formaldehyde content in the textile is realized.
Description
Technical Field
The utility model relates to the field of textile industry product detection, in particular to an automatic analysis system for formaldehyde content in textiles.
Background
The analysis standard of formaldehyde content in textiles is HJ601-2011, spectrophotometry for measuring acetylacetone of formaldehyde in water quality, the principle is that formaldehyde and acetylacetone generate yellow compound in the presence of excessive ammonium salt, the colored substance has maximum absorption at 414nm wavelength, absorbance of a sample is measured by an ultraviolet spectrophotometer, and formaldehyde concentration of the sample is determined by a standard curve. In the method, during detection, each sample needs to be manually cleaned, then the cuvette is rinsed for three times by using the liquid to be detected, the surface of the cuvette is wiped and dried, and then the cuvette is placed into a spectrophotometer detection chamber for detection, repeated work and complicated steps are carried out, and as acetylacetone and formaldehyde are contained in the sample to be detected, long-term contact and micro-inhalation can cause harm to human bodies, if automatic detection can be realized, long-term harm to operators can be avoided, labor force can be liberated, and the production cost is reduced;
in addition, with the high-speed development of textile industry, the national requirements on textiles are gradually perfected, the number of textiles to be detected is increased, and the detection quantity shows geometric multiple increase. The formaldehyde detection of fabrics is taken as an example, the detection task amount is high, the operation of the current detection is that the sample is manually preprocessed, the manual analysis, the manual recording data and the manual tabulation are summarized, the operation is tedious and time-consuming, the detection efficiency is low, errors are easily caused by manual misoperation, the existing requirements cannot be met, an automatic product is urgently needed to improve the detection efficiency to cope with the increasing detection requirements, the detection efficiency of textile formaldehyde is improved, the accuracy of analysis and detection is improved, the influence of human factors on the detection result is avoided, the working intensity of the inspector is reduced, and meanwhile the harm of detection reagents to operators is avoided.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art and provide an automatic analysis system for formaldehyde content in textiles.
The utility model provides the following technical scheme:
the utility model provides an automatic analysis system for formaldehyde content in textiles, which comprises an ultraviolet spectrophotometer, a flow cell cuvette, an automatic sample injection device, a PLC (programmable logic controller), an industrial personal computer and a bottom plate, wherein the structural components are specifically shown as follows:
the ultraviolet spectrophotometer consists of an ultraviolet light source, a light source emitting unit, a light source receiving unit, a detection chamber and a data analysis unit;
the flow cell cuvette is used for containing liquid to be detected, the liquid to be detected enters the flow cell cuvette through the automatic sample injection device and waits for detection and analysis, and the flow cell cuvette is of a pipeline structure with liquid entering from top to bottom and is made of optical quartz glass;
the automatic sample injection device comprises a sample injection needle and a sample frame, wherein the sample injection needle is arranged on a Z-axis sliding module, the movement of the sample injection needle in the vertical direction of a Z axis is controlled, the Z-axis sliding module is arranged on a Y-axis sliding module, the movement of the sample injection needle in the front-back direction of the Y axis is controlled, the Y-axis sliding module is arranged on an X-axis sliding module, the movement of the sample injection needle in the left-right direction of the X axis is controlled, the sample frame is arranged in a fixed groove on the surface of a bottom plate, a sample test tube is inserted on the sample frame, a sample injection pump is arranged on the outer side of the automatic sample injection device, and the sample injection needle is communicated with the sample injection pump through a hose.
The outer side of the sample frame is provided with a cleaning component, and I/O signal output joints of a light source receiving unit and a data analysis unit of the ultraviolet spectrophotometer are connected to an I/O signal input joint of the PLC; and a signal output contact of the PLC is connected to the industrial personal computer through a serial port line and finally displayed on a display matched with the industrial personal computer.
As a preferable technical scheme of the utility model, the cleaning component is a cleaning bottle with cleaning liquid.
As a preferable technical scheme of the utility model, the two ends of the position shaft of the Z-axis sliding module, the two ends of the position shaft of the Y-axis sliding module and the two ends of the position shaft of the X-axis sliding module are respectively provided with a position sensor.
As a preferable embodiment of the present utility model, the sample rack has a matrix structure of 12 rows and 13 columns, and a total of 156 detection bits.
As a preferable technical scheme of the utility model, the ultraviolet light source and the light source emission unit generate parallel light beams into the cuvette of the flow cell of the detection chamber after pulse light emitted by the xenon point light source passes through the ultraviolet filter and passes through the telescope device.
As a preferable technical scheme of the utility model, the light source receiving and data analyzing unit is used for converging ultraviolet light after being absorbed by liquid in the cuvette of the flow cell and then introducing the ultraviolet light through optical fibers to acquire absorption spectrum data; and finally, sending the acquired spectrum data to a main control board through system internal communication, obtaining the final formaldehyde concentration through operation, and finally displaying on a display matched with an industrial personal computer.
As a preferable technical scheme of the utility model, the detection chamber is positioned between the light source emitting unit and the light source receiving unit and is used for placing the cuvette of the flow cell.
Compared with the prior art, the utility model has the following beneficial effects:
(1) The automatic sampling system consists of 3 sliding modules, realizes the accurate positioning design of the X, Y, Z triaxial coordinates of the sampling needle in the directions of the X axis, the Y axis and the Z axis, ensures that the sampling position is accurate, two position sensors at two ends of each position axis monitor the running track of the sampling needle in real time, and ensures the accuracy and the reliability of detecting the sampling position of the sampling needle by adopting closed-loop running management;
(2) The sample test tube frame is designed to have 12 rows and 13 columns, and has 156 detection positions, so that the automatic detection of 156 samples can be finished at one time, unattended operation is realized, and labor force is liberated;
(3) The cuvette adopts a flowing mode of liquid up-and-down inlet and outlet, liquid enters the cuvette from the top and flows down along the inner wall of the cuvette, so that the inner wall of the cuvette can be well flushed, the generation and wall hanging of bubbles are avoided, the liquid flows out from a liquid outlet at the bottom, cross contamination among detection samples is not caused, and the accuracy and reliability of detection of each sample are ensured;
(4) Automatic sampling and continuous detection are realized, textile formaldehyde detection efficiency is improved, influence of human factors on detection results is avoided, analysis detection accuracy is improved, working intensity of detection personnel is reduced, and meanwhile harm of detection reagents to operators is avoided.
Drawings
The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:
FIG. 1 is a schematic diagram of an automated formaldehyde content detection system in a textile product of the present utility model;
FIG. 2 is a schematic diagram of an autosampler of the present utility model;
FIG. 3 is a schematic of a flow cell cuvette of the present utility model;
in the figure: 1. an ultraviolet spectrophotometer; 2. a flow cell cuvette; 3. an automatic sample injection device; 4. a sample injection needle; 5. a Z-axis sliding module; 6. a Y-axis sliding module; 7. an X-axis sliding module; 8. cleaning the assembly; 9. a sample holder; 10. a sample tube; 11. a sample injection pump; 12. a PLC controller; 13. and the industrial personal computer.
Detailed Description
The preferred embodiments of the present utility model will be described below with reference to the accompanying drawings, it being understood that the preferred embodiments described herein are for illustration and explanation of the present utility model only, and are not intended to limit the present utility model. Wherein like reference numerals refer to like elements throughout.
Further, if detailed description of the known art is not necessary to illustrate the features of the present utility model, it will be omitted. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the drawings, and the words "inner" and "outer" refer to directions toward or away from, respectively, the geometric center of a particular component.
Example 1
1-3, the utility model provides an automatic analysis system for formaldehyde content in textiles, which comprises an ultraviolet spectrophotometer 1, a flow cell cuvette 2, an automatic sample feeding device 3, a PLC (programmable logic controller) 12, an industrial personal computer 13 and a bottom plate, wherein the structural components are specifically as follows:
the ultraviolet spectrophotometer 1 consists of an ultraviolet light source, a light source emitting unit, a light source receiving unit, a detection chamber and a data analysis unit, adopts an ultraviolet absorption spectrometry, utilizes the narrow-band characteristic absorption spectrum of a detected substance in an ultraviolet band, and measures the formaldehyde content in liquid through a certain mathematical algorithm treatment;
the flow cell cuvette 2 is used for containing liquid to be detected, the liquid to be detected enters the flow cell cuvette 2 through the automatic sample injection device 3 and waits for detection and analysis, the flow cell cuvette 2 is made of optical quartz glass in a liquid up-and-down flowing mode, no bubbles or stripes are generated in the use process, the optical performance error of a light transmission surface is less than or equal to 0.3%, the liquid enters the flow cell cuvette 2 from the top and flows down along the inner wall of the flow cell cuvette 2, the inner wall of the cuvette can be well flushed, meanwhile, the generation and wall hanging of bubbles are avoided, the liquid flows out from a liquid outlet at the bottom, cross contamination among detection samples is not caused, and the accuracy and reliability of detection of each sample are ensured;
the light-proof continuous flow cuvette uses an M6 threaded connector made of tetrafluoroethylene, has good tightness and long service time, can be directly connected with a peristaltic pump for use, and is convenient to maintain and replace in the later period;
the flow cell cuvette 2 adopts a flow mode of liquid up-and-down inlet and outlet, liquid enters the cuvette from the top and flows down along the inner wall of the cuvette, so that the inner wall of the cuvette can be well washed, the generation and wall hanging of bubbles are avoided, the liquid flows out from a liquid outlet at the bottom, cross contamination among detection samples is not caused, and the accuracy and reliability of detection of each sample are ensured;
the automatic sampling device 3 comprises a sampling needle 4 and a sample frame 9, wherein the sampling needle 4 is arranged on a Z-axis sliding module 5, the movement of the sampling needle 4 in the vertical direction of the Z axis is controlled, the Z-axis sliding module 5 is arranged on a Y-axis sliding module 6, the movement of the sampling needle 4 in the front-back direction of the Y axis is controlled, the Y-axis sliding module 6 is arranged on an X-axis sliding module 7, the movement of the sampling needle 4 in the left-right direction of the X axis is controlled, the sample frame 9 is arranged in a fixed groove on the surface of a bottom plate, a sample test tube 10 is inserted on the sample frame 9, a sampling pump 11 is arranged on the outer side of the automatic sampling device 3, and the sampling needle 4 is communicated with the sampling pump 11 through a hose.
In this way, the 3 sliding modules on the automatic sampling device 3 are driven by corresponding external driving cylinders to realize the position movement of the sampling needle 4, the sampling needle 4 is driven, the sampling needle 4 is conveyed to the sample rack 9 to sample a single sample tube 10 in the sample rack 9, the 3 sliding modules are utilized to move the sampling needle, the sampling needle 4 is conveyed to the position right above different samples in the sample rack 9, the sampling is convenient, the up-and-down movement of the sampling needle is more accurate through the Z-axis sliding module 5, and the sampling pump 11 is convenient to sample after the sampling needle 4 enters the sample tube 10;
the outside of the sample frame 9 is provided with a cleaning component 8, and the I/O signal output joints of the light source receiving unit and the data analysis unit of the ultraviolet spectrophotometer 1 are connected to the I/O signal input joint of the PLC 12; the signal output contact of the PLC 12 is connected to the industrial personal computer 13 through a serial port line, and finally is displayed on a display matched with the industrial personal computer 13.
The cleaning component 8 is a cleaning bottle with cleaning liquid inside, the cleaning bottle is filled with liquid for cleaning the sample injection needle 4, after sampling and detection are completed, the sample injection needle is moved to the upper part of the cleaning bottle through the X-axis and Y-axis sliding module 6, the Z-axis sliding module 5 controls the sample injection needle 4 to descend into the cleaning component 8, the sample injection pump 11 is started, and the pipeline, the cuvette and the sample injection needle 4 of the whole system are cleaned. After the cleaning is completed, the sample needle 4 is moved over the next sample tube 10, ready to begin testing.
Position sensors are mounted at two ends of the position shafts of the Z-axis sliding module 5, the Y-axis sliding module 6 and the X-axis sliding module 7, the running track of the sample injection needle 4 on the three sliding modules is monitored in real time, closed loop running management is adopted, the accuracy and the reliability of detecting the sampling position of the sample injection needle are ensured, and each position sensor is electrically connected with the PLC 12 and the industrial personal computer 13.
The sample holder 9 has a matrix structure of 12 rows and 13 columns, and has 156 detection bits in total.
The ultraviolet light source and the light source emission unit, pulse light emitted by the xenon point light source passes through the ultraviolet filter, and then passes through the telescope device to generate parallel light beams which enter the detection chamber flow cell cuvette 2.
The light source receiving and data analyzing unit is used for converging ultraviolet light after being absorbed by liquid in the cuvette of the flow cell and then introducing the ultraviolet light through an optical fiber to acquire absorption spectrum data; and finally, sending the acquired spectrum data to a main control board through system internal communication, obtaining the final formaldehyde concentration through operation, and finally displaying on a display matched with an industrial personal computer.
The detection chamber is located between the light source emitting unit and the light source receiving unit and is used for placing the cuvette 2 of the flow cell.
Further, the working principle of the device is as follows:
specifically, the detection device includes: the I/O signal input/output of the PLC 12 is connected to the circuit control device of the ultraviolet spectrophotometer 1 and the automatic sample feeding device 3 through signal wires; the RS232 signal output of the PLC controller 12 is connected to the RS232 signal input terminal of the industrial personal computer 13 through an RS232 serial port line.
In the embodiment of the present utility model, the PLC controller 12 writes a control program, and the control program can output the corresponding I/O signal and RS232 signal according to the I/O signal input to the PLC controller 12. The output RS232 signal is transmitted to the industrial personal computer 13 for synchronizing the sample injection state of the industrial control software interface.
Specific: when the detection device is in a working state, after a sample test tube 10 is manually placed on a sample rack 9, an automatic detection device is started through software on an industrial personal computer 13, a Z-axis sliding module 5 is controlled by a SHYB-WI-03-UV1 automatic sample injection device 3, a Y-axis sliding module 6 is controlled by an X-axis sliding module 7, a sample injection needle 4 is moved into a first sample test tube 10, a sample injection pump 11 is started by the PLC 12, a sample to be detected is pumped into a flow cell cuvette 2 in detection of the ultraviolet spectrophotometer 1 through the sample injection needle 4 and a pipeline, after liquid extraction 10s is completed, the PLC 12 stops the sample injection pump 11, the absorbance value of the flow cell cuvette 2 at the moment is read through the ultraviolet spectrophotometer 1 of UVLini-1280, the formaldehyde content of the sample is calculated through data processing software of the ultraviolet spectrophotometer 1 of the UVLini-1280, the result is uploaded to the PLC 12, and RS232 signal output of the PLC 12 is connected to an RS232 signal input contact of the industrial personal computer 13 through an RS232 serial port line, and data is displayed on a display screen;
after receiving the detection data, the PLC controller 12 transmits the data to the data display interface of the industrial personal computer 13 through the S232 serial port line, and stores the data. After data storage, the PLC 12 controls the automatic sampling device 3 to remove the sampling needle 4 from the sample test tube 10, the automatic sampling device moves into the cleaning device 8, after the movement is completed, the PLC 12 starts the sampling pump 11 to pump cleaning liquid into the pipeline and the flow cell cuvette 2, the cleaning liquid is cleaned, after 10 seconds of cleaning, the PLC 12 stops the sampling pump 11, the Z-axis sliding module 5 of the SHYB-WI-03-UV1 automatic sampling device 3 is controlled to move the needle head of the sampling needle 4 above the cleaning liquid, the PLC 12 starts the sampling pump 11 to pump air into the pipeline and the flow cell cuvette 2, the cleaning liquid in the pipeline and the flow cell cuvette 2 is emptied, and after 10 seconds of liquid discharging, the PLC 12 stops the sampling pump 11.
At this time, the detection and cleaning process of one sample is completed, the PLC 12 controls the Z-axis sliding module 5, the Y-axis sliding module 6 and the X-axis sliding module 7 of the SHYB-WI-03-UV1 automatic sample injection device 3 to move the sample injection needle 4 into the next test tube of the liquid to be detected, and at this time, the detection device starts to detect the formaldehyde content in the liquid.
According to the utility model, through the automatic detection system for the formaldehyde content in the fabric, automatic sampling and continuous detection can be realized, the detection efficiency of the formaldehyde in the fabric is improved, the influence of human factors on the detection result is avoided, the accuracy of analysis and detection is improved, the working intensity of the inspector is reduced, and meanwhile, the harm of the detection reagent to the operator is avoided.
Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (7)
1. The automatic analysis system for the formaldehyde content in the textile is characterized by comprising an ultraviolet spectrophotometer (1), a flow cell cuvette (2), an automatic sample injection device (3), a PLC (programmable logic controller) 12, an industrial personal computer (13) and a bottom plate, wherein the specific structural components are as follows:
the ultraviolet spectrophotometer (1) consists of an ultraviolet light source, a light source emitting unit, a light source receiving unit, a detection chamber and a data analysis unit;
the flow cell cuvette (2) is used for containing liquid to be detected, the liquid to be detected enters the flow cell cuvette (2) through the automatic sample injection device (3) and waits for detection and analysis, and the flow cell cuvette (2) is of a pipeline structure with liquid entering from top to bottom and is made of optical quartz glass;
the automatic sample injection device (3) comprises a sample injection needle (4) and a sample frame (9), wherein the sample injection needle (4) is arranged on a Z-axis sliding module (5), the movement of the sample injection needle (4) in the vertical direction of a Z axis is controlled, the Z-axis sliding module (5) is arranged on a Y-axis sliding module (6), the movement of the sample injection needle (4) in the front-back direction of the Y axis is controlled, the Y-axis sliding module (6) is arranged on an X-axis sliding module (7), the movement of the sample injection needle (4) in the left-right direction of the X axis is controlled, the sample frame (9) is arranged in a fixed groove on the surface of a bottom plate, a sample test tube (10) is inserted on the sample frame (9), a sample injection pump (11) is arranged on the outer side of the automatic sample injection device (3), and the sample injection needle (4) and the sample injection pump (11) are communicated through a hose;
the outside of the sample frame (9) is provided with a cleaning component (8), and I/O signal output joints of a light source receiving unit and a data analysis unit of the ultraviolet spectrophotometer (1) are connected to I/O signal input joints of the PLC (12); the signal output contact of the PLC (12) is connected to the industrial personal computer (13) through a serial port line, and finally the signal output contact is displayed on a display matched with the industrial personal computer (13).
2. An automated analysis system for formaldehyde content in textiles according to claim 1, characterized in that the cleaning assembly (8) is a cleaning bottle with a cleaning liquid built-in.
3. The automated analysis system of formaldehyde content in textiles according to claim 1, wherein position sensors are mounted at both ends of the position axis of the Z-axis sliding module (5), the Y-axis sliding module (6) and the X-axis sliding module (7).
4. An automated analysis system for formaldehyde content in textiles according to claim 1, characterized in that the sample holders (9) are of a matrix structure of 12 rows and 13 columns, for a total of 156 detection bits.
5. The automated analysis system for formaldehyde content in textiles according to claim 1, wherein the ultraviolet light source and the light source emitting unit, the pulsed light emitted from the xenon point light source passes through the ultraviolet filter, and then passes through the telescope device to generate parallel light beams, and the parallel light beams enter the detection chamber flow cell cuvette (2).
6. The automated analysis system of claim 1, wherein the light source receiving and data analyzing unit absorbs ultraviolet light through the liquid in the cuvette of the flow cell, and then directs the ultraviolet light through the optical fiber to collect absorption spectrum data; and finally, sending the acquired spectrum data to a main control board through system internal communication, obtaining the final formaldehyde concentration through operation, and finally displaying on a display matched with an industrial personal computer.
7. An automated analysis system for formaldehyde content in textiles according to claim 1, characterized in that the detection chamber is located between the light source emitting unit and the light source receiving unit for placing the flow cell cuvette (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320239340.4U CN219201627U (en) | 2023-02-17 | 2023-02-17 | Automatic analysis system for formaldehyde content in textile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320239340.4U CN219201627U (en) | 2023-02-17 | 2023-02-17 | Automatic analysis system for formaldehyde content in textile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219201627U true CN219201627U (en) | 2023-06-16 |
Family
ID=86703808
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320239340.4U Active CN219201627U (en) | 2023-02-17 | 2023-02-17 | Automatic analysis system for formaldehyde content in textile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219201627U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116793966A (en) * | 2023-08-28 | 2023-09-22 | 常熟中纺联检测中心有限公司 | Automatic testing spectrometer for formaldehyde content of textile |
-
2023
- 2023-02-17 CN CN202320239340.4U patent/CN219201627U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116793966A (en) * | 2023-08-28 | 2023-09-22 | 常熟中纺联检测中心有限公司 | Automatic testing spectrometer for formaldehyde content of textile |
| CN116793966B (en) * | 2023-08-28 | 2023-12-15 | 常熟中纺联检测中心有限公司 | Automatic testing spectrometer for formaldehyde content of textile |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10338064B2 (en) | Fully-automatic immunofluorescence quantitative analysis apparatus and detection method | |
| US6764651B2 (en) | Fiber-optic dissolution systems, devices, and methods | |
| CN219201627U (en) | Automatic analysis system for formaldehyde content in textile | |
| KR910004143B1 (en) | Urine compoment measuring method and apparatus | |
| CN105842234B (en) | Self-calibration formula nitrogen dioxide continuous on-line detection device and detection method | |
| CN104198388B (en) | Online water quality monitoring device based on composite spectrum measurement | |
| CN106153964A (en) | A kind of electrolyte analyser and the automatically method of sampling | |
| US20100108101A1 (en) | Sample processing apparatus and cleaning method | |
| CN201110831Y (en) | Multipurpose high-efficiency fluorescent optical fiber chemical and biological sensor component | |
| CN104849422A (en) | Ammonia nitrogen on-line monitoring system and method thereof | |
| CN106018319A (en) | Infrared fume monitoring system | |
| CN108519491A (en) | Full-automatic fatty acid value detecting system and detection method | |
| CN111707630A (en) | Spectrophotometer for batch detection and detection method thereof | |
| CN219694912U (en) | Flame-proof type infrared gas analyzer | |
| CN115700151A (en) | Automatic laser testing device with grading and process random inspection functions and using method thereof | |
| CN209231315U (en) | The total blood urea/nitrogen analyzer of water sample | |
| CN215415288U (en) | Portable flue gas analysis tester | |
| CN102507914B (en) | Method for checking blank of cup of biochemical analysis meter | |
| CN110726704B (en) | Full-automatic multi-wavelength angle excitation fluorescence photometry detection analyzer | |
| CN109060692A (en) | Active phosphorus automatic analyzer and its measuring method based on syringe pump | |
| CN208156019U (en) | Full-automatic fatty acid value detection system | |
| JP2604043B2 (en) | Automatic analyzer | |
| CN201130154Y (en) | Hydroxy-group ethylidene 2-phosphonic acid active component analyzer | |
| CN113776629A (en) | Automatic calibration system for glass measuring device, control method and device | |
| CN206114517U (en) | Infrared oil smoke monitoring system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |