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Method and system for detecting leucomalachite green

A technology of hidden malachite green and detection method, which is applied in measuring devices, material analysis through optical means, instruments, etc., can solve the problems of long detection time, high detection cost and complicated pretreatment

Inactive Publication Date: 2018-06-29
SHENZHEN INST OF TERAHERTZ TECH & INNOVATION CO LTD +1
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Problems solved by technology

[0004] Based on this, it is necessary to provide a detection method and system for recessive malachite green in view of the problems of long detection time, complicated pretreatment, high detection cost, and the need for professional experimenters to operate.

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  • Method and system for detecting leucomalachite green
  • Method and system for detecting leucomalachite green
  • Method and system for detecting leucomalachite green

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Embodiment Construction

[0037] A detection method of recessive malachite green, such as figure 1 shown, including the following:

[0038] Step S100: irradiating the sample with terahertz light to obtain the absorption spectrum of the sample.

[0039] The corresponding absorption spectrum is measured by a terahertz spectrometer transmission device 110 . Such as figure 2 As shown, the terahertz spectrometer device 110 includes: a femtosecond laser 111, a beam splitter 112, a terahertz radiation end 113, a parabolic mirror 114, a terahertz receiving end 115, a processing module 116, a sample compartment 117, and an object stage 118 , the terahertz radiation end 113 , the parabolic mirror 114 , and the terahertz receiving end 115 are placed in the sample chamber 117 . The terahertz radiation end 113 , the parabolic mirror 114 , the terahertz receiving end 115 and the stage 118 are placed in the sample chamber 117 . The sample to be tested is placed on the stage 118 . The femtosecond laser 111 radia...

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Abstract

The invention relates to a method and a system for detecting leucomalachite green. The method for detecting the leucomalachite green comprises the following steps: irradiating a sample with terahertzlight to obtain an absorption spectrum of the sample; extracting a sample absorption coefficient according to the absorption spectrum; determining the concentration of the leucomalachite green in thesample according to the absorption coefficient. The system for detecting the leucomalachite green comprises a terahertz time domain spectrometer device and a processor, wherein the terahertz time domain spectrometer device is used for detecting terahertz time domain spectral data of the leucomalachite green sample, and the processor is used for executing the method for detecting the leucomalachitegreen. The terahertz time domain spectrometer device is used for irradiating the sample with the terahertz light, so that the absorption spectrum of the sample is obtained; the sample absorption coefficient is extracted according to the absorption spectrum; the concentration of the leucomalachite green in the sample is determined according to the absorption coefficient. The method is short in detection time, simple in pretreatment and low in detection cost, and does not need to be operated by a professional experimenter.

Description

technical field [0001] The invention relates to the field of aquatic product / food safety detection, in particular to a detection method and system for recessive malachite green. Background technique [0002] Recessive malachite green, also known as colorless malachite green, bis(p-dimethylaminophenyl)phenylmethane. CAS No. 129-73-7. Chemical formula C23H26N2, flaky crystal, acid reduction of malachite green. Studies have found that after malachite green enters the body of aquatic animals, it will quickly metabolize into fat-soluble colorless malachite green. Malachite green is a toxic triphenylmethane chemical. It is not only a dye, but also a bactericidal and parasitic chemical agent. It can cause cancer, teratogenicity, and mutagenesis. It is effective against saprolegniasis in fish and fish eggs. Special effects. Currently there is no special drug on the market that can solve saprolegniasis in a short time. The use of malachite green in aquaculture has been banned repe...

Claims

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Application Information

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IPC IPC(8): G01N21/3563G01N21/3586
CPCG01N21/3563G01N21/3586G01N2021/3595
Inventor 李灿李辰丁庆
Owner SHENZHEN INST OF TERAHERTZ TECH & INNOVATION CO LTD
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