Raman spectrum detection apparatus for rapidly detecting reaction product

Abstract

The invention relates to a Raman spectrum detection apparatus for rapidly detecting a reaction product. The Raman spectrum detection apparatus comprises a sampling mechanism, a sample pool, a laser, an optical fiber sensor, a Raman spectrometer and a controller, wherein the sampling mechanism comprises a driving mechanism and a sampling pipe, and the sampling pipe is connected with the sample pool; two sides of the sample pool are respectively connected with a cylindrical pipeline, a first reflection mirror and a second reflection mirror are separately arranged between the sample pool and thepipeline, the first reflection mirror is provided with a small hole, the laser light enters the sample pool from the small hole on the first reflection mirror and then is reflected by the second reflection mirror; the optical fiber sensor comprises a light scattering probe, the light scattering probe comprises a probe and a detector right opposite to the probe, the probe is connected with a laserby virtue of the optical fiber, the detector receives the laser from the probe and emits the scattering light, the probe collects the scattering light and transfers the light to the Raman spectrometerby virtue of the output optical fiber, the detector comprises a substrate and a nano array positioned on the surface of the substrate, and the nano array consists of a plurality of carbon nanotubes.

Description

technical field [0001] The invention relates to a Raman spectrum detection device, in particular to a Raman spectrum detection device for rapidly detecting reaction products. Background technique [0002] As an analytical method, Raman spectroscopy has a wide range of applications in the fields of chemistry, biology, and medicine due to its unique advantages such as rich information, simple sample preparation, and low water interference. However, one of the main limitations of the application of Raman spectroscopy is that the Raman scattering signals obtained from micro-trace chemical substances are very weak, which reduces the applicable range of its detection and increases the difficulty of detection. There are two kinds of Raman spectroscopy enhancement methods currently used: surface enhancement and resonance enhancement. They can enhance the Raman scattering intensity of the sample by several orders of magnitude. However, a single enhancement method has a limited effe...

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Problems solved by technology

However, a single enhancement method has a limited effect on enhancing the signal intensity of Raman spectroscopy, which greatly limits the application of Raman spectroscopy.

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