Electrochemiluminescence spectrum analyzer with reflector path adjusting device
By introducing an external optical path adjustment device into the electrochemiluminescence spectrometer and using an achromatic doublet lens to optimize beam propagation, the problem of insufficient light transmission through the slit was solved, and the detection performance and sensitivity of the spectrometer were improved.
Patent Information
- Application Number
- CN202422604401.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-28
- Publication Date
- 2025-09-30
- Estimated Expiration
- 2034-10-28
AI Technical Summary
In the process of collecting light signals in existing electrochemiluminescence spectrometers, the light transmittance of the slit of the spectrometer is insufficient, resulting in insufficient number of photons, which affects the analysis effect.
An external optical path adjustment device is used, including a lens sleeve and an achromatic doublet lens. The position of the achromatic doublet lens is adjusted by rotating the retaining ring to optimize the beam propagation path and improve the beam collection efficiency.
The light transmittance of the slit is significantly increased, the image quality and the focusing of monochromatic light are improved, the sensitivity and detection performance of the equipment are enhanced, and quantitative analysis with low detection limits is achieved.
Smart Images
Figure CN223400821U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to an electrochemiluminescence spectrum analyzer with an external light path adjustment device, belonging to the technical field of spectrometers. Background Art
[0002] The basic process for collecting spectral signals in an electro- / chemiluminescence spectrometer is as follows: ① The electrolytic reagent emits light; ② The light is collected into a slit; ③ The light is split by a dispersion system; ④ The detector converts the light signal into an electrical signal; and ⑤ The data is read out. During this process, only by collecting as much light as possible into the spectrometer's slit can the maximum amount of light transmitted be guaranteed, ensuring the maximum number of photons reaching the detector's target surface. To this end, the present invention improves the performance of the spectrometer by using an external optical path adjustment device. Summary of the Invention
[0003] In view of the deficiencies of the prior art, the utility model provides an electrochemiluminescence spectrometer with an external light path adjustment device, which improves the light transmittance of the slit of the spectrometer and ensures the analysis effect of the spectrometer.
[0004] The technical solution of the utility model is as follows:
[0005] An electrochemiluminescence spectrometer with an external light path adjustment device comprises a spectrometer, a light path adjustment device, a dark box, and an electrolysis device, wherein a dark box is provided on one side of the spectrometer, a partition is provided in the dark box, the electrolysis device is provided on one side of the partition, and the light path adjustment device is provided on the other side;
[0006] The optical path adjustment device includes a lens sleeve and an achromatic doublet lens. The achromatic doublet lens is arranged in the lens sleeve through a retaining ring. One side of the lens sleeve corresponds to the electrolysis device through a through hole on the partition, and the other side corresponds to the slit of the spectrometer.
[0007] According to the preferred embodiment of the present invention, the inner wall of the lens sleeve is provided with an internal thread, an achromatic doublet lens is provided in the retaining ring, the outer diameter of the retaining ring is provided with an external thread, the retaining ring is threadedly connected to the inner wall of the lens sleeve, and the position of the achromatic doublet lens is adjusted by rotating the retaining ring.
[0008] According to the preferred embodiment of the present invention, the focal length of the achromatic doublet lens is 30 mm, the clear aperture is 25 mm, and the working distance is 32.63 mm.
[0009] According to the preferred embodiment of the present invention, the side of the achromatic doublet lens with the largest curvature radius (the flattest side) faces the slit of the spectrometer, and the distance between the achromatic doublet lens and the slit is 23.72 mm.
[0010] Preferably, according to the present invention, the electrolysis device includes an electrolytic cell and a working electrode. The working electrode is provided in the electrolytic cell, and the light-emitting surface of the working electrode faces the lens sleeve.
[0011] According to the preferred embodiment of the present invention, a switch door is provided on one side of the dark box to facilitate the placement of reagents.
[0012] When in use, power is applied to the electrochemiluminescence reagent in the electrolytic cell, and the electrolytic reagent generates photoelectrons. The photoelectrons will be adsorbed to the luminous surface of the working electrode, forming a non-steady-state light source. The light beam passes through the achromatic doublet lens and enters the slit. The spectrometer analyzes the incident light. During the propagation of the light beam, the focal length and working distance are adjusted and changed accordingly based on the achromatic doublet lens to improve the collection of non-steady-state light sources and ensure the amount of light transmitted.
[0013] The beneficial effects of the present invention are:
[0014] When the optical system uses monochromatic light, the multi-element design of the achromatic doublet lens reduces aberrations, significantly improves image quality, and improves the focusing of monochromatic light to form a smaller light spot. The utility model mainly utilizes the characteristic of the achromatic doublet lens to improve monochromatic performance, focuses the light source into the slit, ensures the amount of light transmitted, and improves product performance.
[0015] Electrochemiluminescence spectroscopy detection of Ru(bpy)3 before using the optical path adjustment device 2+ The detection limit is 500pmol / L. After using the optical path adjustment device, the electrochemiluminescence spectrometry was used to detect Ru(bpy)3 2+ The detection limit is 50pmol / L, which improves the performance of electrochemiluminescence spectroscopy in detecting luminescent substances, increases the sensitivity of the equipment, achieves a low detection limit for quantitative analysis experiments, and can be used to construct an ultra-sensitive electrochemiluminescence analysis method. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a structural diagram of the utility model;
[0017] Among them: 1. Dark box; 2. Switch door; 3. Partition; 4. Electrolytic cell; 5. Working electrode; 6. Through hole; 7. Lens sleeve; 8. Achromatic doublet lens; 9. Retaining ring; 10. Slit; 11. Light-emitting surface. DETAILED DESCRIPTION
[0018] The present invention will be further described below through embodiments and in conjunction with the accompanying drawings, but is not limited thereto.
[0019] Example 1:
[0020] like Figure 1As shown, this embodiment provides an electrochemiluminescence spectrometer with an external optical path adjustment device, including a spectrometer, an optical path adjustment device, a dark box 1 and an electrolysis device, wherein the dark box 1 is provided on one side of the spectrometer, a partition 3 is provided in the dark box 1, the electrolysis device is provided on one side of the partition 3, and the optical path adjustment device is provided on the other side;
[0021] The optical path adjustment device includes a lens sleeve 7 and an achromatic doublet lens 8. The achromatic doublet lens 8 is arranged in the lens sleeve 7 through a retaining ring 9. One side of the lens sleeve 7 corresponds to the electrolysis device through the through hole 6 on the partition 3, and the other side corresponds to the slit 10 of the spectrometer.
[0022] The inner wall of the lens sleeve 7 is provided with an internal thread, the achromatic doublet lens 8 is provided in the retaining ring 9, the outer diameter of the retaining ring 9 is provided with an external thread, the retaining ring 9 is threadedly connected to the inner wall of the lens sleeve 7, and the position of the achromatic doublet lens is adjusted by rotating the retaining ring.
[0023] The lens tube 7, the retaining ring 9 and the achromatic doublet lens 8 are all commercially available equipment.
[0024] The achromatic doublet lens 8 has a focal length of 30 mm, a clear aperture of 25 mm, and a working distance of 32.63 mm.
[0025] The surface with the largest curvature radius (the flattest surface) of the achromatic doublet lens 8 faces the slit 10 of the spectrometer, and the distance between the achromatic doublet lens and the slit is 23.72 mm.
[0026] The electrolysis device includes an electrolytic cell 4 and a working electrode 5 . The working electrode 5 is provided in the electrolytic cell 4 , and the light-emitting surface 11 of the working electrode faces the side of the achromatic doublet lens 8 in the lens sleeve 7 with the smallest curvature radius.
[0027] A switch door 2 is provided on one side of the dark box 1 to facilitate the placement of reagents.
[0028] When in use, power is applied to the electrochemiluminescence reagent in the electrolytic cell, and the electrolytic reagent generates photoelectrons. The photoelectrons will be adsorbed to the luminous surface of the working electrode, forming a non-steady-state light source. The light beam passes through the achromatic doublet lens and enters the slit. The spectrometer analyzes the incident light. During the propagation of the light beam, the focal length and working distance are adjusted and changed accordingly based on the achromatic doublet lens to improve the collection of non-steady-state light sources and ensure the amount of light transmitted.
Claims
1. An electrochemiluminescence spectrometer with an external light path adjustment device, characterized in that: The device comprises a spectrometer, an optical path adjustment device, a dark box and an electrolysis device, wherein a dark box is provided on one side of the spectrometer, a partition is provided in the dark box, an electrolysis device is provided on one side of the partition, and an optical path adjustment device is provided on the other side; The optical path adjustment device includes a lens sleeve and an achromatic doublet lens. The achromatic doublet lens is arranged in the lens sleeve through a retaining ring. One side of the lens sleeve corresponds to the electrolysis device through a through hole on the partition, and the other side corresponds to the slit of the spectrometer.
2. The electrochemiluminescence spectrometer with an external light path adjustment device according to claim 1, characterized in that: The inner wall of the lens sleeve is provided with an internal thread, an achromatic doublet lens is provided in the retaining ring, the outer diameter of the retaining ring is provided with an external thread, and the retaining ring is threadedly connected to the inner wall of the lens sleeve.
3. The electrochemiluminescence spectrometer with an external light path adjustment device according to claim 2, characterized in that: The achromatic doublet has a focal length of 30mm, a clear aperture of 25mm, and a working distance of 32.63mm.
4. The electrochemiluminescence spectrometer with an external light path adjustment device according to claim 3, characterized in that: The side with the largest curvature radius of the achromatic doublet lens faces the slit of the spectrometer, and the distance between the achromatic doublet lens and the slit is 23.72 mm.
5. The electrochemiluminescence spectrometer with an external light path adjustment device according to claim 4, characterized in that: The light-emitting surface of the working electrode faces the lens sleeve.
6. The electrochemiluminescence spectrometer with an external light path adjustment device according to claim 5, characterized in that: A switch door is provided on one side of the cassette.