CN112666088B - Spectrophotometry test method sample treatment test capsule - Google Patents
Spectrophotometry test method sample treatment test capsule Download PDFInfo
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- CN112666088B CN112666088B CN202110080848.XA CN202110080848A CN112666088B CN 112666088 B CN112666088 B CN 112666088B CN 202110080848 A CN202110080848 A CN 202110080848A CN 112666088 B CN112666088 B CN 112666088B
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Abstract
The invention discloses a spectrophotometry test method sample treatment test capsule, which comprises a body and a protective shell coated on the outer surface of the body; the sample cavity and the valve cavity are formed in the body, air holes and liquid holes communicated with the sample cavity are formed in the side wall of the valve cavity, sealing mechanisms used for sealing openings of the sample cavity are arranged at two ends of the sample cavity, air chambers communicated with the sample cavity are arranged on the side wall of the sample cavity, and adjusting valve rods are movably arranged in the valve cavity. The invention has reasonable structural design, reduces the operation difficulty of sewage detection, can recycle and treat the detected sewage and reagent along with the capsule, reduces pollution, and has the characteristics of small volume, low cost, simple operation and good detection effect.
Description
Technical Field
The invention relates to the field of sewage detection, in particular to a sample treatment testing capsule by a spectrophotometry testing method.
Background
Today, the prior art in the field of mobile water analysis is represented by the so-called Photometric cuvette tests as disclosed in DE 4109118 A1. The use of these test facilities is done by manual operation. First, a water sample is taken with a pipette and sent into a test tube containing the main reagent. The tube is closed and shaken to mix the water sample and the primary reagent, and then the tube is inserted into a photometer and the sample is measured. Such manual test tube testing is inconvenient and highly error prone to operation. The spent primary reagent is a health hazard as well as an environmental hazard, and the tube must be disposed of accordingly after analysis. The method has the disadvantages of complex operation, high cost, inconvenient sewage treatment after detection and certain defects.
SUMMERY OF THE UTILITY MODEL
The invention aims to provide a spectrophotometry test method sample treatment test capsule, which reduces the operation difficulty of sewage detection, can recover and treat detected sewage and reagents along with the capsule, reduces pollution and reduces the cost of sewage detection.
The invention is realized by the following steps:
a spectrophotometry test method sample processing test capsule comprises a body and a protective shell coated on the outer surface of the body;
the sample cavity and the valve cavity are formed in the body, an air hole and a liquid hole communicated with the sample cavity are formed in the side wall of the valve cavity, sealing mechanisms used for sealing openings of the sample cavity are arranged at two ends of the sample cavity, an air chamber communicated with the sample cavity is formed in the side wall of the sample cavity, and an adjusting valve rod is movably arranged in the valve cavity. The adjusting valve rod comprises an adjusting rod, the side wall of the adjusting rod is in sliding fit with the side wall of the valve cavity, two adjusting channels used for controlling the communication of the valve cavity and the sample cavity are arranged on the adjusting rod, and the two adjusting channels are respectively matched with the air hole and the liquid hole. The adjusting channel adopts an annular feeding groove or through feeding holes, and the central axes of the through feeding holes are vertically arranged. The distance between the two annular feeding grooves is not equal to the distance between the air hole and the liquid hole.
And the top of the adjusting rod is fixedly provided with an adjusting knob.
Mounting grooves are formed in two ends of the sample cavity, and the sealing mechanism is located in the mounting grooves.
Sealing mechanism is including setting up the pre-installation reagent spare in the mounting groove, the one end that the sample chamber was kept away from to the pre-installation reagent spare is provided with terminal surface glass, just be provided with between pre-installation reagent spare and the terminal surface glass with mounting groove assorted sealing washer.
(1) The invention adopts a method of reagent preassembly for detection, can realize that an object to be detected is automatically sent into the sample cavity to be mixed with a detection reagent by rotating or pushing the adjusting valve rod to adjust the position, realizes the detection of the sample, reduces the operation difficulty of sewage detection, and can operate without a person with high professional skills.
(2) According to the invention, the air holes and the liquid holes communicated with the valve cavity and the sample cavity are formed in the cavity wall of the valve cavity, so that the two functions of air suction and liquid inlet can be separated, the equipment does not need to be vacuumized in advance and then stored, and the possibility that the detection precision is influenced by the loss of the equipment along with the time after the equipment is vacuumized in advance and stored is reduced.
(3) According to the invention, the air chamber is arranged on the side wall of the sample cavity, because of the existence of the air chamber, liquid in the sample cavity enters the air chamber, even if bubbles exist, the bubbles are located at the air chamber after the test capsule is transversely placed, no bubbles exist in the sample cavity, and the influence of the bubbles existing in the sample cavity on the measurement result is avoided.
(4) The invention adopts a capsule mode to detect the sample to be detected, and the sample treatment and test capsule can be integrally recycled after the sewage detection is finished, thereby avoiding the separate treatment of the detection test tube in the prior art and effectively reducing the pollution of the detection reagent to the environment.
(5) The sample treatment and test capsule has the advantages of simple structure, small volume, convenient transportation, low production cost of equipment and great reduction of the whole detection cost of sewage detection.
Drawings
FIG. 1 is an exploded view of the overall structure of a spectrophotometric test capsule according to the present invention;
FIG. 2 is a schematic view of the regulating valve stem structure of the spectrophotometric test method of the present invention when the regulating passage of the sample treatment test capsule is through the feed hole;
FIG. 3 is a schematic view of the regulating valve stem structure of the spectrophotometric test method of the present invention when the regulating passage of the sample treatment test capsule is an annular feed chute;
FIG. 4 is a cross-sectional view of the entire structure of a spectrophotometric test method of the present invention in which the conditioning passage of the sample treatment test capsule is through the feed orifice;
FIG. 5 is a cross-sectional view of the overall structure of a spectrophotometric test method of the present invention in which the conditioning channel of the sample treatment test capsule is an annular feed chute.
In the figure, 1, a body; 2. a protective housing; 3. a sample chamber; 4. a valve cavity; 5. air holes; 6. a liquid port; 7. a sealing mechanism; 8. adjusting the valve rod; 9. adjusting a rod; 10. adjusting the channel; 11. adjusting a knob; 12. mounting grooves; 13. a pre-filled reagent member; 14. end face glass; 15. a seal ring; 16. an air chamber.
Detailed Description
The invention is further described with reference to the following figures and specific examples.
Referring to fig. 1 to 5, a spectrophotometric test method sample treatment test capsule comprises a body 1 and a protective shell 2 coated on the outer surface of the body 1;
the sample cavity 3 and the valve cavity 4 are arranged on the body 1, the side wall of the valve cavity 4 is provided with an air hole 5 and a liquid hole 6 which are communicated with the sample cavity 3, two ends of the sample cavity 3 are respectively provided with a sealing mechanism 7 for sealing an opening of the sample cavity 3, the side wall of the sample cavity 3 is provided with an air chamber 16 communicated with the sample cavity 3, and an adjusting valve rod 8 is movably arranged in the valve cavity 4.
Adjusting valve rod 8 is including adjusting pole 9, it sets up with 4 lateral walls of valve pocket to adjust the sliding fit of pole 9 lateral walls, it is used for controlling the regulation passageway 10 of valve pocket 4 and 3 intercommunications in sample chamber to be provided with two on the pole 9, two adjust passageway 10 respectively with gas pocket 5 and liquid hole 6 phase-matchs, gas pocket 5 is used for bleeding sample chamber 3, and liquid hole 6 is used for waiting to detect the transport of sample to sample chamber 3, through setting up two on adjusting valve rod 8 respectively with gas pocket 5 and liquid hole 6 assorted regulation passageway 10, can realize separately two functions of bleeding and the feed liquor of equipment, make equipment need not take out the vacuum in advance and store again.
The adjusting channel 10 adopts an annular feeding groove or a through feeding hole, and the central axes of the two through feeding holes are vertically arranged. The annular feeding groove is formed by arranging an annular through groove on the outer surface of the adjusting rod 9, and the through feeding hole is formed in the adjusting rod 9 in a penetrating mode. The distance between the two annular feeding grooves is not equal to the distance between the air hole 5 and the liquid hole 6.
And an adjusting knob 11 is fixedly arranged at the top of the adjusting rod 9. The adjustment of adjusting the position of the rod 9 is facilitated by the arrangement of the adjusting knob 11, and then the feeding of the detection medicine or the detection reagent is facilitated.
The sealing mechanism 7 comprises a reagent pre-assembly piece 13 arranged in the mounting groove 12, end face glass 14 is arranged at one end, away from the sample cavity 3, of the reagent pre-assembly piece 13, and a sealing ring 15 matched with the mounting groove 12 is arranged between the reagent pre-assembly piece 13 and the end face glass 14. The pre-installed reagent piece 13 is used for placing detection reagents and ensuring that the end glass 14 can well seal the installation groove 12 due to the arrangement of the elastic sealing ring 15.
The specific working principle of the sample treatment and test capsule provided by the invention is as follows: firstly, pushing or rotating the adjusting valve rod 8 to enable an annular feeding groove or a through feeding hole on the adjusting valve rod 8 to be positioned at an air hole 5 formed in the wall of the valve cavity 4, so as to open a communicating channel between the valve cavity 4 and the sample cavity 3, further realize air suction in the sample cavity 3, and push the adjusting valve rod 8 or rotate the adjusting valve rod 8 to close the channel to seal the sample cavity 3 after the sample cavity 3 is vacuumized; the preassembly reagent piece 13 in the sample cavity 3 is preassembled with a detection reagent corresponding to a sample to be detected in advance, then the adjusting valve rod 8 is pushed, the liquid hole 6 is opened, the valve cavity 4 is communicated with the sample cavity 3, the sample to be detected is sucked into the sample cavity, the adjusting valve rod 8 is pushed or rotated, the channel is closed, the sample processing and testing capsule vibrates under the action of an additional vibrating rod, so that medicines and the sample are uniformly mixed, finally the sample processing and testing capsule is transversely arranged, the air chamber 16 is upwards, so that air bubbles generated in the sample cavity 3 enter the air chamber 16, and after the air bubbles are transferred, the testing capsule is horizontally placed into a measuring instrument for detecting the absorbance of the sample.
Example 1:
when the capsule is used, the sample processing and testing capsule is taken out, the adjusting valve rod 8 is pushed or rotated firstly, the annular feeding groove or the feeding hole penetrating through the adjusting valve rod 8 is positioned at the air hole 5 formed in the side wall of the valve cavity 4, the communication channel of the valve cavity 4 and the sample cavity 3 is opened, the sample cavity 3 is vacuumized, and then the adjusting valve rod 8 is pushed or the adjusting valve rod 8 is rotated, and the channel is closed; then, the adjusting valve rod 8 is pushed to open the liquid hole 6, so that a communication channel between the valve cavity 4 and the sample cavity 3 is opened, a sample to be detected is automatically sucked into the sample cavity 3 through the liquid hole 6, then the adjusting valve rod 8 is pushed or the adjusting valve rod 8 is rotated to close the channel, the sample processing and testing capsule vibrates under the action of an external vibrating rod, so that medicines and the sample are uniformly mixed, finally, the sample processing and testing capsule is horizontally placed, the air chamber 16 is upwards, so that bubbles generated in the sample cavity 3 enter the air chamber 16, and after the bubbles are transferred, the testing capsule is horizontally placed into a measuring instrument to detect the absorbance of the sample.
Example 2:
the detection reagent can be precoated on the cavity wall of the sample cavity 3 in advance, when a sample to be detected is sucked into the sample cavity 3, the detection reagent precoated on the cavity wall of the sample cavity 3 is contacted with the sample to be detected, the sample processing test capsule vibrates under the action of an additional vibrating rod to uniformly mix the medicine and the sample, finally, the sample processing test capsule is transversely arranged, the air chamber 16 is upwards, so that air bubbles generated in the sample cavity 3 enter the air chamber 16, and after the air bubbles are transferred, the test capsule is horizontally placed into a measuring instrument to detect the absorbance of the sample.
Example 3:
the detection reagent can also be preinstalled in an annular feeding groove or a through feeding hole which is formed in the adjusting valve rod 8 and matched with the liquid hole 6 in advance, when a sample to be detected is sucked into the sample cavity 3, the sample to be detected flows through the annular feeding groove or the through feeding hole in the adjusting valve rod 8, the detection reagent is sucked into the sample cavity 3 together, the sample processing and testing capsule vibrates under the action of an additional vibrating rod to uniformly mix medicines and the sample, finally, the sample processing and testing capsule is transversely arranged to enable the air chamber 16 to face upwards, so that bubbles generated in the sample cavity 3 enter the air chamber 16, and after the bubbles are transferred, the testing capsule is horizontally placed into a measuring instrument to detect the absorbance of the sample.
Compared with the prior art, the invention has the following advantages:
(1) The invention adopts a reagent preassembling method for detection, can realize that an object to be detected is automatically sent into the sample cavity 3 to be mixed with a detection reagent by rotating or pushing the adjusting valve rod 8 to carry out position adjustment, realizes the detection of the sample, reduces the operation difficulty of sewage detection, and can carry out the operation without a person with high professional skill.
(2) According to the invention, the air hole 5 and the liquid hole 6 which are communicated with the valve cavity 4 and the sample cavity 3 are formed in the cavity wall of the valve cavity 4, so that two functions of air extraction and liquid inlet can be separated, the equipment does not need to be vacuumized in advance and then stored, and the possibility that air enters the sample cavity 3 to influence the detection precision along with the loss of the equipment after the equipment is vacuumized in advance and stored is reduced.
(3) According to the invention, the air chamber 16 is arranged on the side wall of the sample cavity 3, because the air chamber 16 exists, liquid in the sample cavity 3 enters the air chamber 16, even if bubbles exist, the bubbles are located at the air chamber 16 after the test capsule is transversely placed, no bubbles exist in the sample cavity 3, and the influence of the bubbles existing in the sample cavity 3 on the measurement result is avoided.
(4) The invention adopts a capsule mode to detect the sample to be detected, and the sample treatment and test capsule can be integrally recycled after the sewage detection is finished, thereby avoiding the separate treatment of the detection test tube in the prior art and effectively reducing the pollution of the detection reagent to the environment.
(5) The sample treatment and test capsule disclosed by the invention is simple in structure, small in size, convenient to transport, low in equipment production cost and capable of greatly reducing the whole detection cost of sewage detection.
The present invention is not limited to the above embodiments, and any modifications, equivalent replacements, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. A spectrophotometric test method sample treatment test capsule comprises a body (1) and a protective shell (2) coated on the outer surface of the body (1), and is characterized in that a sample cavity (3) and a valve cavity (4) are formed in the body (1), an air hole (5) and a liquid hole (6) communicated with the sample cavity (3) are formed in the side wall of the valve cavity (4), sealing mechanisms (7) used for sealing the opening of the sample cavity (3) are arranged at two ends of the sample cavity (3), an air chamber (16) communicated with the sample cavity (3) is arranged on the side wall of the sample cavity (3), and an adjusting valve rod (8) is movably arranged in the valve cavity (4); the adjusting valve rod (8) comprises an adjusting rod (9), the side wall of the adjusting rod (9) is in sliding fit with the side wall of the valve cavity (4), two adjusting channels (10) used for controlling the communication of the valve cavity (4) and the sample cavity (3) are arranged on the adjusting rod (9), and the two adjusting channels (10) are respectively matched with the air hole (5) and the liquid hole (6); the adjusting channel (10) adopts an annular feeding groove or a through feeding hole, and the central axes of the two through feeding holes are vertically arranged; the distance between the two annular feeding grooves is not equal to the distance between the air hole and the liquid hole.
2. The spectrophotometric test sample treatment test capsule of claim 1, wherein: the top of the adjusting rod (9) is fixedly provided with an adjusting knob (11).
3. The spectrophotometric test sample treatment test capsule of claim 1, wherein: mounting grooves (12) are formed in two ends of the sample cavity (3), and the sealing mechanism (7) is located in the mounting grooves (12).
4. The spectrophotometric test sample treatment test capsule of claim 3, wherein: the sealing mechanism (7) comprises a reagent preassembling piece (13) arranged in a mounting groove (12), end face glass (14) is arranged at one end, away from the sample cavity (3), of the reagent preassembling piece (13), and a sealing ring (15) matched with the mounting groove (12) is arranged between the reagent preassembling piece (13) and the end face glass (14).
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| CN202110080848.XA CN112666088B (en) | 2021-01-21 | 2021-01-21 | Spectrophotometry test method sample treatment test capsule |
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| CN202110080848.XA CN112666088B (en) | 2021-01-21 | 2021-01-21 | Spectrophotometry test method sample treatment test capsule |
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| CN112666088B true CN112666088B (en) | 2023-03-28 |
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