Automatic pretreatment method for detecting forbidden harmful aromatic amine dye

An aromatic amine and dye technology, used in the detection of banned harmful aromatic amine dyes and the field of automated pretreatment, can solve problems such as deviation personnel and poisoning, and achieve the effect of avoiding deviation in detection results, simple and convenient use, and convenient collection of cooling liquid.

Active Publication Date: 2018-11-30
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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  • Automatic pretreatment method for detecting forbidden harmful aromatic amine dye
  • Automatic pretreatment method for detecting forbidden harmful aromatic amine dye
  • Automatic pretreatment method for detecting forbidden harmful aromatic amine dye

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] Such as 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 ...

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 particularly relates to an automatic pretreatment method for detecting forbidden harmful aromatic amine dye. The automatic pretreatment method comprises the following steps of S1, sending a degreasing signal to a transmission module by a control module, pumping a degreasing agent into a reaction unit by the transmission module, and controlling a heating and stirring module to performing heating, degreasing and standing on the reaction unit by the control module; S2, sending a reduction split signal to the transmission module by the control module after standing, pumping a bufferliquid to the reaction unit by the transmission module, and controlling the heating and stirring module to heat and stir the reaction unit by the control module; and S3, sending a cooling liquid in acooling module to the reaction unit, pumping an extraction agent into the reaction unit by the transmission module after the temperature of the reaction module is reduced to a room temperature, stirring a solution in the reaction unit by the heating and stirring module, and pumping the solution in the reaction unit to an extraction post by an extraction transmission module. Deviation of a detection result caused by the solution transferring process by a detector is prevented, and the detector is prevented from being toxic due to touch with the solution by mistake.

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 Applications(China)
IPC IPC(8): G01N30/06
CPCG01N30/06G01N2030/062
Inventor 蔡白雪李晓龙罗媛媛王豪
Owner CHONGQING ACAD OF METROLOGY & QUALITY INST
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