CN115166109B - Method for detecting 2-ethylhexyl diphenyl phosphate in leather - Google Patents
Method for detecting 2-ethylhexyl diphenyl phosphate in leather Download PDFInfo
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- CN115166109B CN115166109B CN202210673521.8A CN202210673521A CN115166109B CN 115166109 B CN115166109 B CN 115166109B CN 202210673521 A CN202210673521 A CN 202210673521A CN 115166109 B CN115166109 B CN 115166109B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
- G01N30/04—Preparation or injection of sample to be analysed
- G01N30/06—Preparation
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- 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
- G01N1/286—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q involving mechanical work, e.g. chopping, disintegrating, compacting, homogenising
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- 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
- G01N1/40—Concentrating samples
- G01N1/4055—Concentrating samples by solubility techniques
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- 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
- G01N1/40—Concentrating samples
- G01N1/4077—Concentrating samples by other techniques involving separation of suspended solids
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- 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
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- 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
- G01N1/40—Concentrating samples
- G01N1/4055—Concentrating samples by solubility techniques
- G01N2001/4061—Solvent extraction
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- 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
- G01N1/40—Concentrating samples
- G01N1/4077—Concentrating samples by other techniques involving separation of suspended solids
- G01N2001/4088—Concentrating samples by other techniques involving separation of suspended solids filtration
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
- G01N30/04—Preparation or injection of sample to be analysed
- G01N30/06—Preparation
- G01N2030/062—Preparation extracting sample from raw material
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Abstract
The invention discloses a detection method of 2-ethylhexyl diphenyl phosphate in leather, which comprises a constant-speed conveying mechanism, a crushing mixing box, a water pump and a concentration filtering box. The beneficial effects of the invention are as follows: through setting up crushing roller, can smash the leather, thereby can make 2-ethylhexyl diphenyl phosphate in the leather can be more dissolve in organic solvent, through being provided with the baffle of slope on crushing mixing tank both sides inner wall at the upside of two crushing rollers, can play certain blocking effect to the mixture when the unloading, make the mixture can fall into collecting vat one, and through setting up uniform velocity conveying mechanism, can transport the leather at uniform velocity into crushing mixing tank, through setting up concentrated filter box, can concentrate the mixed liquor, then in collecting vat two is collected through the filtration with the mixed liquor after concentrating, then detect it with the weather chromatograph again, improve detection accuracy.
Description
Technical Field
The invention relates to a detection method, in particular to a detection method of 2-ethylhexyl diphenyl phosphate in leather, and belongs to the technical field of leather detection.
Background
With the ever-expanding application fields of leather and the increasing demand, the fire caused by leather is also increasing. It is counted that the fire caused by leather accounts for more than half of the total number of fires, especially the fire of building houses, and the fire caused by the spread of the fire of leather accounts for a larger proportion, and bedclothes and leather for interior decoration are the main causes of the fire. Therefore, developed countries put forward flame retardant requirements on leather as early as 60-70 in the 20 th century, and established flame retardant standards and regulations for various kinds of leather, 2-ethylhexyl diphenyl phosphate has been widely used in leather as a main substitute for brominated flame retardants, and 2-ethylhexyl diphenyl phosphate is mainly added to leather in a simple physical manner, so that 2-ethylhexyl diphenyl phosphate contained in leather needs to be detected to prevent the content of 2-ethylhexyl diphenyl phosphate from exceeding the standard, which causes harm to human body.
While some existing devices for detecting 2-ethylhexyl diphenyl phosphate are used, the following disadvantages often exist:
1) When the existing devices for detecting the 2-ethylhexyl diphenyl phosphate are used, the detection devices do not have a crushing function, so that workers are required to manually crush the devices, the manual crushing is low in efficiency, broken blocks are large and are not beneficial to detection, and when the existing devices are used for conveying materials, the conveying speed cannot be controlled, so that the existing devices are easy to block at a feed inlet, and the testing efficiency is affected;
2) When the existing devices for detecting the 2-ethylhexyl diphenyl phosphate are used, most of the devices are used for standing mixed liquid, and then supernatant is directly detected by a meteorological chromatograph, and due to low concentration, the detection is inaccurate and the detection accuracy is affected.
Disclosure of Invention
The invention aims to solve at least one technical problem, and provides a method for detecting 2-ethylhexyl diphenyl phosphate in leather.
The invention realizes the above purpose through the following technical scheme: a method for detecting 2-ethylhexyl diphenyl phosphate in leather comprises
Firstly, the device is moved to a proper position through a universal wheel and fixed,
the universal wheels are fixedly arranged at four corners of the lower surface of the base, the base is arranged at the lower side of the detection device, and a pushing handle is fixedly arranged on the side wall of one side of the base;
step two, conveying the leather into a crushing mixing box through a uniform speed conveying mechanism for crushing, dropping the crushed leather into a collecting tank I, injecting clear water into the collecting tank I, soaking the leather in the clear water, standing for a period of time,
the crushing mixing box is fixedly arranged on one side of the upper surface of the base, a first collecting groove is arranged on the inner bottom wall of the crushing mixing box, a filling opening is arranged on one side wall of the crushing mixing box, a box door is rotatably arranged on the surface of the box body of the crushing mixing box, and the uniform speed conveying mechanism is fixedly arranged on the upper side wall of the crushing mixing box;
step three, introducing the supernatant in the first collecting tank into a concentration filtering box through a water pump for concentration and filtration,
the water pump is fixedly arranged on the upper side wall of the concentration and filtration tank, the water inlet end of the water pump is connected with a water inlet pipe, the end part of the water inlet pipe is connected with a first mounting plate, one side of the water inlet pipe, which is far away from the concentration and filtration tank, is provided with a conveying pipe which is clamped on the side wall of the crushing and mixing tank, one end of the conveying pipe extends to the inside of the crushing and mixing tank, a filter cover is arranged at the end part of the conveying pipe, the other end of the conveying pipe is connected with a second mounting plate, the water outlet end of the water pump is provided with a water outlet pipe, and the lower end of the water outlet pipe extends into the concentration and filtration tank;
step four, taking out the collecting tank II by opening the roll-over door, transferring the mixed solution in the collecting tank II into a test tube, detecting the 2-ethylhexyl diphenyl phosphate in the mixed solution by a gas chromatograph,
the second collecting tank is arranged on the inner bottom wall of the concentration filtering box.
As still further aspects of the invention: the inside of the crushing mixing box is rotationally connected with two crushing rollers through a wheel shaft, the rear side of each crushing roller is connected with the output end of a motor I, and the motor I is fixedly arranged on the side wall of the rear side of the crushing mixing box.
As still further aspects of the invention: the inside of smashing mixing box is located the upside of two crushing rollers and is provided with the baffle of slope installation on smashing mixing box both sides inner wall.
As still further aspects of the invention: the constant speed conveying mechanism comprises a fixed seat fixedly connected to the side wall of the upper side of the crushing mixing box and a motor II arranged on the side wall of one end of the fixed seat, a mounting groove is formed in the fixed seat, a spiral blade is rotationally connected in the mounting groove, one end of the spiral blade is connected with the output end of the motor II, a feeding port is formed in the upper side of the fixed seat, a discharging port is formed in the lower side of the fixed seat, and the lower end of the discharging port is communicated with the crushing mixing box.
As still further aspects of the invention: the internally mounted of concentrated rose box has the backup pad, and the upside of backup pad installs concentrated case, the heater is installed to the interior bottom wall both sides of concentrated case, and is provided with temperature sensor on one side lateral wall of concentrated case, the downside lateral wall central point of concentrated case puts fixed mounting has the solenoid valve, and the lower extreme of solenoid valve extends to the downside of backup pad.
As still further aspects of the invention: the lower side of the concentration box is provided with a first filter screen and a second filter screen respectively, and the filter holes of the first filter screen are larger than those of the second filter screen.
As still further aspects of the invention: a controller is arranged between the crushing mixing box and the concentration filtering box, the input end of the controller is connected with the output end of the temperature sensor, and the output end of the controller is respectively connected with the input ends of the electromagnetic valve and the heater.
The beneficial effects of the invention are as follows:
1) According to the invention, the crushing rollers are arranged, so that the 2-ethylhexyl diphenyl phosphate in the leather can be more dissolved in an organic solvent, and the baffles obliquely arranged on the inner walls of the two sides of the crushing mixing box are arranged on the upper sides of the two crushing rollers, so that a certain blocking effect is achieved on the mixture during discharging, the mixture can fall into the first collecting tank, and the leather can be conveyed into the crushing mixing box at a constant speed by arranging the constant speed conveying mechanism, so that the leather is prevented from being blocked in a discharge hole during conveying, and the conveying efficiency is improved;
2) According to the invention, the concentration filter box is arranged, when concentration is carried out, the temperature control range of the temperature sensor is set, then the heater is started to heat the mixed liquid, when the temperature sensor senses that the temperature exceeds the standard, a signal is sent to the controller, the controller further controls the heater to stop running, and controls the electromagnetic valve to be opened, so that the concentrated mixed liquid is filtered and collected into the second collecting tank, and then the mixed liquid is detected by the weather chromatograph, so that the detection accuracy is improved.
Drawings
FIG. 1 is a schematic diagram showing the structure of a 2-ethylhexyl diphenyl phosphate detector in front view in leather according to the present invention;
FIG. 2 is a schematic diagram showing the cross-sectional structure of a device for detecting 2-ethylhexyl diphenyl phosphate in leather according to the present invention;
FIG. 3 is a schematic diagram showing the structure of the device for detecting 2-ethylhexyl diphenyl phosphate in leather according to the present invention in a rear view.
In the figure: 1. the device comprises a base, 2, universal wheels, 3, a pushing handle, 4, a crushing mixing box, 5, a box door, 6, a uniform speed conveying mechanism, 601, a fixed seat, 602, a spiral blade, 603, a motor II, 604, a feed inlet, 605, a discharge outlet, 7, a concentration filtering box, 8, a turnover door, 9, a controller, 10, a water pump, 11, a water outlet pipe, 12, a water inlet pipe, 13, a first mounting plate, 14, a second mounting plate, 15, a conveying pipe, 16, a baffle, 17, a wheel shaft, 18, a crushing roller, 19, a first collecting tank, 20, a supporting plate, 21, a concentration box, 22, a temperature sensor, 23, a heater, 24, an electromagnetic valve, 25, a first filter screen, 26, a second filter screen, 27, a second collecting tank, 28 and a first motor.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
As shown in FIGS. 1 to 3, a method for detecting 2-ethylhexyl diphenyl phosphate in leather comprises
Firstly, the device is moved to a proper position through the universal wheel 2 and fixed,
the universal wheel 2 is fixedly arranged at four corners of the lower surface of the base 1, the base 1 is arranged at the lower side of the detection device, and a push handle 3 is fixedly arranged on the side wall of one side of the base;
step two, conveying the leather into a crushing mixing box 4 through a uniform speed conveying mechanism 6 for crushing, dropping the crushed leather into a first collecting tank 19, injecting clear water into the first collecting tank 19, soaking the leather in the clear water, standing for a period of time,
the crushing mixing box 4 is fixedly arranged on one side of the upper surface of the base 1, a first collecting groove 19 is arranged on the inner bottom wall of the crushing mixing box, a filling opening is arranged on one side wall of the crushing mixing box 4, a box door 5 is rotatably arranged on the surface of the box body of the crushing mixing box, and the uniform speed conveying mechanism 6 is fixedly arranged on the upper side wall of the crushing mixing box 4;
step three, introducing the supernatant in the first collecting tank 19 into a concentration filtering box 7 through a water pump 10 for concentration filtering,
the water pump 10 is fixedly arranged on the upper side wall of the concentration and filtration tank 7, the water inlet end of the water pump is connected with the water inlet pipe 12, the end part of the water inlet pipe 12 is connected with the first mounting plate 13, one side of the water inlet pipe 12, which is far away from the concentration and filtration tank 7, is provided with the transport pipe 15 which is clamped on the side wall of the crushing and mixing tank 4, one end of the transport pipe 15 extends into the crushing and mixing tank 4, a filter cover is arranged at the end part of the transport pipe 15, the other end of the transport pipe is connected with the second mounting plate 14, the water outlet end of the water pump 10 is provided with the water outlet pipe 11, and the lower end of the water outlet pipe 11 extends into the concentration and filtration tank 7;
step four, taking out the second collecting tank 27 by opening the turnover door 8, transferring the mixed solution in the second collecting tank into a test tube, detecting the 2-ethylhexyl diphenyl phosphate in the mixed solution by a gas chromatograph,
wherein, the roll-over door 8 is rotatably installed on the surface of the lower side box body of the concentration filter box 7 through a rotating shaft, and the second collecting tank 27 is installed on the inner bottom wall of the concentration filter box 7.
In the embodiment of the invention, two crushing rollers 18 are rotatably connected to the inside of the crushing mixing box 4 through a wheel shaft 17, the rear side of each crushing roller 18 is connected with the output end of a first motor 28, and the first motor 28 is fixedly arranged on the side wall of the rear side of the crushing mixing box 4 and can crush leather, so that 2-ethylhexyl diphenyl phosphate in the leather can be more dissolved in an organic solvent.
In the embodiment of the invention, the baffle plates 16 obliquely arranged on the inner walls of the two sides of the crushing and mixing box 4 are arranged on the upper sides of the two crushing rollers 18 in the crushing and mixing box 4, so that a certain blocking effect is achieved on the mixture during discharging, and the mixture can fall into the first collecting tank 19.
In the embodiment of the invention, the uniform speed conveying mechanism 6 comprises a fixing seat 601 fixedly connected to the side wall of the upper side of the crushing mixing box 4 and a second motor 603 arranged on the side wall of one end of the fixing seat 601, a mounting groove is formed in the fixing seat 601, a spiral blade 602 is rotationally connected in the mounting groove, one end of the spiral blade 602 is connected with the output end of the second motor 603, a feed inlet 604 is formed in the upper side of the fixing seat 601, a discharge outlet 605 is formed in the lower side of the fixing seat, the lower end of the discharge outlet 605 is communicated with the crushing mixing box 4, leather can be conveyed into the crushing mixing box 4 at a uniform speed, and the phenomenon that the leather is blocked in the discharge outlet 605 during conveying is avoided.
Example two
As shown in FIGS. 1 to 3, a method for detecting 2-ethylhexyl diphenyl phosphate in leather comprises
Firstly, the device is moved to a proper position through the universal wheel 2 and fixed,
the universal wheel 2 is fixedly arranged at four corners of the lower surface of the base 1, the base 1 is arranged at the lower side of the detection device, and a push handle 3 is fixedly arranged on the side wall of one side of the base;
step two, conveying the leather into a crushing mixing box 4 through a uniform speed conveying mechanism 6 for crushing, dropping the crushed leather into a first collecting tank 19, injecting clear water into the first collecting tank 19, soaking the leather in the clear water, standing for a period of time,
the crushing mixing box 4 is fixedly arranged on one side of the upper surface of the base 1, a first collecting groove 19 is arranged on the inner bottom wall of the crushing mixing box, a filling opening is arranged on one side wall of the crushing mixing box 4, a box door 5 is rotatably arranged on the surface of the box body of the crushing mixing box, and the uniform speed conveying mechanism 6 is fixedly arranged on the upper side wall of the crushing mixing box 4;
step three, introducing the supernatant in the first collecting tank 19 into a concentration filtering box 7 through a water pump 10 for concentration filtering,
the water pump 10 is fixedly arranged on the upper side wall of the concentration and filtration tank 7, the water inlet end of the water pump is connected with the water inlet pipe 12, the end part of the water inlet pipe 12 is connected with the first mounting plate 13, one side of the water inlet pipe 12, which is far away from the concentration and filtration tank 7, is provided with the transport pipe 15 which is clamped on the side wall of the crushing and mixing tank 4, one end of the transport pipe 15 extends into the crushing and mixing tank 4, a filter cover is arranged at the end part of the transport pipe 15, the other end of the transport pipe is connected with the second mounting plate 14, the water outlet end of the water pump 10 is provided with the water outlet pipe 11, and the lower end of the water outlet pipe 11 extends into the concentration and filtration tank 7;
step four, taking out the second collecting tank 27 by opening the turnover door 8, transferring the mixed solution in the second collecting tank into a test tube, detecting the 2-ethylhexyl diphenyl phosphate in the mixed solution by a gas chromatograph,
wherein, the roll-over door 8 is rotatably installed on the surface of the lower side box body of the concentration filter box 7 through a rotating shaft, and the second collecting tank 27 is installed on the inner bottom wall of the concentration filter box 7.
In the embodiment of the invention, the supporting plate 20 is arranged in the concentration filtering box 7, the concentration box 21 is arranged on the upper side of the supporting plate 20, the heaters 23 are arranged on two sides of the inner bottom wall of the concentration box 21, the temperature sensor 22 is arranged on one side wall of the concentration box 21, the electromagnetic valve 24 is fixedly arranged in the center of the lower side wall of the concentration box 21, the lower end of the electromagnetic valve 24 extends to the lower side of the supporting plate 20, and the mixed solution can be concentrated to improve the concentration of 2-ethylhexyl diphenyl phosphate in the mixed solution.
In the embodiment of the invention, the first filter screen 25 and the second filter screen 26 are respectively arranged on the lower side of the concentration tank 21, and the filter holes of the first filter screen 25 are larger than those of the second filter screen 26, so that the concentrated mixed liquid can be filtered again, and the influence of impurities on the subsequent detection result is avoided.
In the embodiment of the invention, a controller 9 is arranged between the crushing mixing box 4 and the concentration filtering box 7, the input end of the controller 9 is connected with the output end of the temperature sensor 22, the output end of the controller 9 is respectively connected with the input ends of the electromagnetic valve 24 and the heater 23, when concentration is carried out, the temperature control range of the temperature sensor 22 is set, then the heater 23 is started to heat the mixed liquid, when the temperature sensor 22 senses that the temperature exceeds the standard, a signal is sent to the controller 9 at the moment, the controller 9 further controls the heater 23 to stop running, and the electromagnetic valve 24 is controlled to be opened, so that the concentrated mixed liquid is filtered and collected in the collecting tank II 27, and then the mixed liquid is detected by a weather chromatograph.
Working principle: in the detection method of the 2-ethylhexyl diphenyl phosphate in the leather, firstly, the leather is transported into a crushing mixing box 4 through a uniform speed conveying mechanism 6, the leather is crushed through two crushing rollers 18, the crushed leather falls into a first collecting tank 19, clean water is injected into the first collecting tank 19, the leather is soaked in the clean water, the leather stands for a period of time, then a water pump 10 is started, supernatant in the first collecting tank 19 is introduced into a concentration filtering box 7 for concentration and filtration, during concentration, the temperature control range of a temperature sensor 22 is set, then a heater 23 is started for heating the mixed solution, when the temperature sensor 22 senses that the temperature exceeds the standard, a signal is sent to a controller 9 at the moment, the controller 9 further controls the heater 23 to stop running, an electromagnetic valve 24 is controlled to be opened, the concentrated mixed solution is filtered and collected into a second collecting tank 27, and then the concentrated mixed solution is detected by a weather chromatograph, and the accuracy of the detection is improved.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (7)
1. The method for detecting the 2-ethylhexyl diphenyl phosphate in the leather is characterized by comprising the following steps of:
firstly, the device is moved to a proper position through a universal wheel (2) and fixed,
the universal wheels (2) are fixedly arranged at four corners of the lower surface of the base (1), the base (1) is arranged at the lower side of the detection device, and a pushing handle (3) is fixedly arranged on the side wall of one side of the base;
step two, conveying the leather into a crushing mixing box (4) through a uniform speed conveying mechanism (6) for crushing, dropping the crushed leather into a collecting tank I (19), injecting clear water into the collecting tank I (19), soaking the leather in the clear water, standing for a period of time,
the crushing mixing box (4) is fixedly arranged on one side of the upper surface of the base (1), a first collecting groove (19) is arranged on the inner bottom wall of the crushing mixing box, a filling opening is arranged on one side wall of the crushing mixing box (4), a box door (5) is rotatably arranged on the surface of the box body, and the uniform speed conveying mechanism (6) is fixedly arranged on the upper side wall of the crushing mixing box (4);
step three, introducing the supernatant in the first collecting tank (19) into a concentration filtering box (7) through a water pump (10) for concentration and filtration,
the water pump (10) is fixedly arranged on the upper side wall of the concentration and filtration tank (7), the water inlet end of the water pump is connected with the water inlet pipe (12), the end part of the water inlet pipe (12) is connected with the first mounting plate (13), one side, far away from the concentration and filtration tank (7), of the water inlet pipe (12) is provided with the transport pipe (15) which is clamped on the side wall of the crushing and mixing tank (4), one end of the transport pipe (15) extends to the inside of the crushing and mixing tank (4), the end part of the transport pipe is provided with the filter cover, the other end of the transport pipe is connected with the second mounting plate (14), the water outlet end of the water pump (10) is provided with the water outlet pipe (11), and the lower end of the water outlet pipe (11) extends into the concentration and filtration tank (7);
step four, taking out the second collecting tank (27) by opening the turnover door (8), transferring the mixed solution in the second collecting tank into a test tube, detecting the 2-ethylhexyl diphenyl phosphate in the mixed solution by a gas chromatograph,
the turnover door (8) is rotatably installed on the surface of the lower side box body of the concentration filter box (7) through a rotating shaft, and the second collecting tank (27) is installed on the inner bottom wall of the concentration filter box (7).
2. The method for detecting 2-ethylhexyl diphenyl phosphate in leather according to claim 1, wherein the method comprises the following steps: the inside of smashing mixing box (4) is connected with two smashing rollers (18) through shaft (17) rotation, and the rear side of every smashing roller (18) all is connected with the output of motor one (28), motor one (28) fixed mounting is on smashing the rear side lateral wall of mixing box (4).
3. The method for detecting 2-ethylhexyl diphenyl phosphate in leather according to claim 2, wherein: the inside of the crushing mixing box (4) is provided with baffle plates (16) which are obliquely arranged on the inner walls of the two sides of the crushing mixing box (4) on the upper sides of the two crushing rollers (18).
4. The method for detecting 2-ethylhexyl diphenyl phosphate in leather according to claim 1, wherein the method comprises the following steps: the constant speed conveying mechanism (6) comprises a fixing seat (601) fixedly connected to the side wall of the upper side of the crushing mixing box (4) and a motor II (603) arranged on the side wall of one end of the fixing seat (601), a mounting groove is formed in the fixing seat (601), a spiral blade (602) is rotationally connected to the mounting groove, one end of the spiral blade (602) is connected with the output end of the motor II (603), a feeding port (604) is formed in the upper side of the fixing seat (601), a discharging port (605) is formed in the lower side of the fixing seat, and the lower end of the discharging port (605) is communicated with the crushing mixing box (4).
5. The method for detecting 2-ethylhexyl diphenyl phosphate in leather according to claim 1, wherein the method comprises the following steps: the inside mounting of concentrated rose box (7) has backup pad (20), and the upside of backup pad (20) installs concentrated case (21), heater (23) are installed to interior bottom wall both sides of concentrated case (21), and are provided with temperature sensor (22) on one side lateral wall of concentrated case (21), downside lateral wall central point of concentrated case (21) puts fixed mounting has solenoid valve (24), and the lower extreme of solenoid valve (24) extends to the downside of backup pad (20).
6. The method for detecting 2-ethylhexyl diphenyl phosphate in leather according to claim 5, wherein the method comprises the steps of: the lower side of the concentration box (21) is provided with a first filter screen (25) and a second filter screen (26) respectively, and the filter holes of the first filter screen (25) are larger than those of the second filter screen (26).
7. The method for detecting 2-ethylhexyl diphenyl phosphate in leather according to claim 1, wherein the method comprises the following steps: a controller (9) is arranged between the crushing mixing box (4) and the concentration filtering box (7), the input end of the controller (9) is connected with the output end of the temperature sensor (22), and the output end of the controller (9) is respectively connected with the input ends of the electromagnetic valve (24) and the heater (23).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210673521.8A CN115166109B (en) | 2022-06-13 | 2022-06-13 | Method for detecting 2-ethylhexyl diphenyl phosphate in leather |
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| CN202210673521.8A CN115166109B (en) | 2022-06-13 | 2022-06-13 | Method for detecting 2-ethylhexyl diphenyl phosphate in leather |
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| CN115166109B true CN115166109B (en) | 2023-09-15 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999000655A2 (en) * | 1997-06-27 | 1999-01-07 | Immunetics, Inc. | Rapid flow-through binding assay apparatus and method |
| CN213813095U (en) * | 2020-11-11 | 2021-07-27 | 广东实朴检测服务有限公司 | Be arranged in soil deposit phenolic compound content detection device |
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2022
- 2022-06-13 CN CN202210673521.8A patent/CN115166109B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999000655A2 (en) * | 1997-06-27 | 1999-01-07 | Immunetics, Inc. | Rapid flow-through binding assay apparatus and method |
| CN213813095U (en) * | 2020-11-11 | 2021-07-27 | 广东实朴检测服务有限公司 | Be arranged in soil deposit phenolic compound content detection device |
Non-Patent Citations (1)
| Title |
|---|
| 气相色谱质谱法测定仿真饰品中磷酸酯类增塑剂含量;林睿;赖莺;葛秀秀;黄宗平;林海霞;林伟靖;黄龙;;广州化学(第02期);全文 * |
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