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Biochemical analyzer based on optofuidic sensor with inner cavity structure

A biochemical analyzer and sensor technology, applied in the field of biochemical analyzers, can solve the problems of affecting test accuracy, large volume of cuvette, increasing test time, etc., and achieve the effects of improving test accuracy, convenient use, and simple structure

Inactive Publication Date: 2015-09-09
黄辉 +4
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, it is usually necessary to replace the cuvette back and forth, which increases the test time and affects the test accuracy, and the cuvette has a larger volume and requires more samples

Method used

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  • Biochemical analyzer based on optofuidic sensor with inner cavity structure
  • Biochemical analyzer based on optofuidic sensor with inner cavity structure
  • Biochemical analyzer based on optofuidic sensor with inner cavity structure

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Embodiment Construction

[0029] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments, and the implementation scope of the present invention is not limited thereto.

[0030] use as figure 1 The structure of the biochemical analyzer shown is used to detect the refractive index and absorbance of liquid samples. Including: a sample pool 1, an optofluidic sensor 2, a waste liquid pool 3, and a pipeline 4, the optofluidic sensor 2 is provided with a cavity 21, and the cavity 21 passes through the pipeline 4 and the sample pool 1 It communicates with the waste liquid pool 3, and there are at least two sample pools 1, which are respectively used to carry liquid standard samples and samples to be tested. The sample cell 1 is connected with a branch communicating with the pipeline 4, wherein the pipeline 4 and / or the branch is provided with a flow regulating valve 5, and the flow regulating valve 5 controls the flow rate of the s...

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Abstract

The invention relates to the field of optical detection, especially to a biochemical analyzer based on an optofuidic sensor with an inner cavity structure. The biochemical analyzer comprises a sample cell, the optofuidic sensor, a waste liquid pool and pipelines and is characterized in that the optofuidic sensor is provided with a cavity; the cavity is communicated with the sample cell and the waste liquid pool through the pipelines; a liquid level height difference exists at one side of the optofuidic sensor or between two sides of the optofuidic sensor; and the liquid level pressure difference drives a sample in the sample cell to flow through the optofuidic sensor to the waste liquid pool via the pipelines. The biochemical analyzer provided by the invention has the characteristics of simple testing, short testing time and high detection precision.

Description

technical field [0001] The invention relates to the field of optical detection, in particular to a biochemical analyzer based on an inner cavity structured optofluidic sensor. Background technique [0002] The fusion of optical detection technology and microfluidic chip technology has given birth to "optofluidic" sensors. The use of optofluidic sensors to analyze and detect liquid or gas samples has the advantages of high sensitivity, real-time dynamics, and the need for trace samples. At present, optofluidic sensors and colorimeters based on optical detection methods are commonly used to detect the refractive index and absorbance of samples. Moreover, optofluidic sensors based on surface plasmon resonance (SPR) have been industrialized. However, the structure of the SPR detector is complicated, the price is expensive, and the detection accuracy needs to be improved (the detection limit is about 10-6 refractive index units). Moreover, at present, a mechanical pump is usua...

Claims

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Application Information

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IPC IPC(8): G01N21/41G01N21/31
Inventor 黄辉渠波刘蓬勃白敏吴海波
Owner 黄辉