Fluorescence detection device

A technology of fluorescence detection and detection cell, which is applied in the direction of fluorescence/phosphorescence, material excitation analysis, etc., can solve the problems of large volume and low fluorescence collection efficiency, achieve the effect of small volume, improve fluorescence collection efficiency, and improve detection accuracy

Active Publication Date: 2016-08-17
SHENZHEN KITEWAY AUTOMATION ENG
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Problems solved by technology

However, in the current situation, the volume of the general fluorescence detection device is relatively large; and the detection method adopted is that the excitation light is hit on the measured substance, and the fluorescence is received from a position 90° from the excitation light for collection and analysis. Low fluorescence collection efficiency

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  • Fluorescence detection device

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Embodiment Construction

[0015] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0016] Such as figure 1 As shown, the fluorescence detection device of the present invention includes a detection cell 3 , a transmitting optical fiber 1 , a focusing lens 2 , a receiving optical fiber (not labeled in the figure) and a receiver 6 .

[0017] The detection pool 3 is cylindrical, specifically, it is cylindrical in this embodiment, and the diameter of the bottom surface is 1.2cm-2.0cm; the specific shape and size of the detection pool 3 can be determined according to actual needs, such as an elliptical cylinder shape, Increase the diameter, etc., and it can even be in the shape of a polygonal prism, but these shapes need to pay attention to adding other measures to avoid damage to the fiber due to excessive bending of the fiber when winding the fiber, such as adding some arc-shaped structures. The side wall of the detect...

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Abstract

The invention proposes a fluorescence detection device, which includes a detection cell, a transmitting optical fiber, a focusing lens, a receiving optical fiber and a receiver; the detection cell is cylindrical, the side wall of the detection cell is a transparent side wall, and the upper end of the detection cell is an opening The focusing lens is installed above the opening of the detection pool; one end of the emitting fiber corresponds to the upper position of the focusing lens, and the other end of the emitting fiber is used to be installed on the excitation light source; the receiving optical fiber includes a winding part and a transmission part, the The winding part has a core, the transmission part has a core and a cladding; the winding part is wound outside the side wall of the detection cell, and the end of the transmission part is coupled with the receiver. The fluorescence detection device of the present invention can effectively improve fluorescence collection efficiency, receive fluorescence in all directions, and improve detection accuracy; and has the advantages of small size and easy implementation.

Description

technical field [0001] The invention relates to a fluorescence detection device, which belongs to the technical field of analysis and detection and is widely used in analytical chemistry, medical detection, environmental protection and the like. Background technique [0002] Fluorescence detection is a commonly used detection technology, which uses the characteristics of the analyte to produce fluorescence when excited by light of a specific wavelength for qualitative and quantitative detection. This method is not only convenient and fast, but also usually has high sensitivity and selectivity, so it is easy to be used for real-time or in situ detection. However, in the current situation, the volume of the general fluorescence detection device is relatively large; and the detection method adopted is that the excitation light is hit on the measured substance, and the fluorescence is received from a position 90° from the excitation light for collection and analysis. Fluorescen...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/64
Inventor 李震张金松宛如意袁振刘丽君黄凯宁幸敏力彭烨黄苑强杨照
Owner SHENZHEN KITEWAY AUTOMATION ENG
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