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An automated pretreatment method for the detection of banned harmful aromatic amine dyes

An aromatic amine and dye technology, applied in the field of dye component detection, can solve problems such as deviation personnel and poisoning

Active Publication Date: 2021-07-09
CHONGQING ACAD OF METROLOGY & QUALITY INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention intends to provide an automatic pretreatment method that prohibits the detection of harmful aromatic amine dyes, so as to solve the deviation caused by manual transfer of solutions and the problem of personnel poisoning

Method used

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  • An automated pretreatment method for the detection of banned harmful aromatic amine dyes
  • An automated pretreatment method for the detection of banned harmful aromatic amine dyes
  • An automated pretreatment method for the detection of banned harmful aromatic amine dyes

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] In order to realize the automated pretreatment method for the detection of harmful aromatic amine dyes prohibited in the first embodiment, the first embodiment also discloses a pretreatment system, such as figure 2 As shown, it includes a control module 5, a cooling module 4, a delivery module 2, a heating and stirring module 3, and at least one set of reaction modules 1 for sample degreasing, dye reduction and extraction. The accompanying drawings draw a set of reaction modules 1 as an example, and this implementation Example samples take leather as an example.

[0042] like image 3 , Figure 4 and Figure 5 As shown, the reaction module 1 includes a plurality of reaction units, and the reaction unit is the reaction cup 31. In this embodiment, six reaction cups 31 are taken as an example. The reaction module 1 is equipped with a support module, and the support module includes a first bracket 6, and a second support module. The second support 7 that a support 6 is ...

Embodiment 2

[0068] The difference from the first embodiment above is that the sample to be tested is selected from textiles, the first pump 32 is turned off without degreasing, and the textile sample does not need to be degreased, and the volume of the solution delivered into the cuvette 31 is set according to the textile, and Another timing program stored in the timing unit performs textile detection timing.

Embodiment 3

[0070] The difference from Embodiment 1 or Embodiment 2 is that, if Figure 9 As shown, the top surface of the sealing cover 18 is welded with a gas cover 36 that completely covers the sealing ring 17, and the sealing cover 18 inside each sealing ring 17 is provided with an air hole 37 communicating with the gas cover 36, and the top of the gas cover 36 The upper airtightness is connected with an air guide tube 40, and the end of the air guide tube 40 is airtightly connected with a fixed-volume air tank 41, and the air guide tube 40 is equipped with an air suction pump 38 positioned between the air cover 36 and the air tank 41. The air pump 38 draws the volatilized organic solvent gas in the cuvette 31 into the gas tank 41, i.e. n-hexane, and the air guide tube 40 between the air pump 38 and the gas tank 41 is equipped with a one-way valve to inflate the gas tank 41 side. The valve 39 is airtightly connected with the air outlet pipe 42 on the air tank 41. Quantitative oxygen i...

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Abstract

The invention specifically relates to an automatic pretreatment method for the detection of harmful aromatic amine dyes, comprising the following steps: the S1 control module sends a degreasing signal to the delivery module, the delivery module pumps the degreasing solvent into the reaction unit, and the control module controls the heating and stirring module to the reaction unit. Heating, degreasing and standing; after standing in S2, the control module sends a reduction cracking signal to the delivery module, and the delivery module pumps the buffer into the reaction unit, and the control module controls the heating and stirring module to heat and stir the reaction unit; S3 will cool the buffer in the module. The cooling liquid is sent to the reaction unit. When the temperature of the reaction unit drops to room temperature, the delivery module pumps the extraction solvent into the reaction unit and the heating and stirring module stirs the solution in the reaction unit. The extraction delivery module pumps the solution in the reaction unit to the extraction unit. column. The invention avoids the deviation of the detection result caused by the detection personnel in the process of transferring the solution, and prevents the detection personnel from being poisoned due to mistaken contact with the solution.

Description

technical field [0001] The invention relates to the technical field of dye component detection, in particular to an automatic pretreatment method for detection of prohibited harmful aromatic amine dyes. Background technique [0002] Decomposable and harmful aromatic amine dyes refer to dyes synthesized from carcinogenic aromatic amines, also known as banned azo dyes. Since decomposable aromatic amines are insoluble in water and are colorless and odorless, banned azo dyes are harmful to the body, so the industry standard It is strictly forbidden to use the dye on leather or fabrics. Because after using decomposable aromatic amines to make fabrics or leather, the decomposable aromatic amines cannot be distinguished from the appearance of the fabrics or leather and cannot be eliminated. The decomposable aromatic amines on fabrics or leather can only be found through technical inspection. After fabric or leather contacts human skin, decomposable aromatic amines can cause variou...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N30/06
CPCG01N30/06G01N2030/062
Inventor 罗媛媛蔡白雪李晓龙王豪
Owner CHONGQING ACAD OF METROLOGY & QUALITY INST
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