High-throughput microfluidic device for organic pesticide detection, and water sample detection method of same

A microfluidic device, a technology of organic pesticides, applied in Raman scattering, material excitation analysis, etc., can solve problems such as being unsuitable for field operations, and achieve the effects of compact structure, high accuracy and fast detection speed

Active Publication Date: 2013-07-10
CHONGQING INST OF GREEN & INTELLIGENT TECH CHINESE ACADEMY OF SCI
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Problems solved by technology

[0005] In the prior art, there is a method of irradiating the measured particles with a double-pulse laser, taking multi-frame images with a microscope, and then calculating the velocity distribution of the microfluidic

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  • High-throughput microfluidic device for organic pesticide detection, and water sample detection method of same

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[0027] The present invention will be further described below in conjunction with drawings and embodiments.

[0028] A high-throughput microfluidic device for organic pesticide detection. The device includes a water sampling module, an organic pesticide microfluidic module, and a Raman spectrum analysis module. The water sampling module collects water samples and transports them to the organic pesticide microfluidic device. The control module fully collides with and organically combines with metal nanoparticles, and then sends them to the Raman spectrum analysis module for data analysis. A water body sampling module can correspond to one, two or more organic pesticide microfluidic modules, and simultaneously detect multiple components in the water body.

[0029] The water body sampling module includes a sampling pipeline 1, a coarse filter 2, a water intake micropump 3, a water intake check valve 4, a fine filter filter 5, a flow regulating valve 8 and a water sample pressure g...

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Abstract

The invention discloses a high-throughput microfluidic device for organic pesticide detection, and a water sample detection method of the same, which relate to the technical field of organic pesticide detection and analysis. The high-throughput microfluidic device comprises a water sampling module, an organic pesticide microfluidic module and a Raman spectrum analysis module, wherein the water sampling module acquires a water sample and conveys the water sample to the organic pesticide microfluidic module, the water sample is fully collided and organically combined with the metal nano particles, and the mixture is further conveyed to the Raman spectrum analysis module for data analysis. In the device and the method provided by the invention, the microfluidic technology and the SERS (Surface Enhanced Raman Scattering) technology are combined, by the control on the flow of the to-be-tested water sample, the nano particles and the buffer solution, Raman spectrum detection on micro water sample can be realized, the environment requirement of the water sample detection is lowered, the detection speed is fast, and the accuracy is high. Meanwhile, the microfluidic device provided by the invention is compact in structure, besides being arranged in a test room, the microfluidic device also can be arranged in other work environment.

Description

technical field [0001] The invention relates to the technical field of organic pesticide detection and analysis, in particular to a microfluidic device for automatically detecting organic pesticides in water samples and a detection method thereof. Background technique [0002] The problem of environmental protection is a prominent problem in the construction of an environment-friendly society in our country. With the acceleration of industrialization and urbanization, the scale of cities continues to expand, and water consumption increases sharply. Untreated industrial wastewater is discharged beyond the standard, untreated domestic sewage directly enters water bodies, and a large amount of pesticides and fertilizers are unreasonably applied. And other ways to enter rivers, lakes, reservoirs, eventually leading to the widespread pollution of rivers and lakes in our country. According to statistics, 75% of the lakes in the country have varying degrees of eutrophication, and ...

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Application Information

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IPC IPC(8): G01N21/65
Inventor 张炜陈昭明杜春雷黄昱谢婉谊王欢博张华
Owner CHONGQING INST OF GREEN & INTELLIGENT TECH CHINESE ACADEMY OF SCI
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