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Kit for detecting anilines compounds in water body

An aniline compound and kit technology, which is applied in the direction of material analysis by observing the effect on chemical indicators, and analysis by chemical reaction of materials, etc. Long and other problems, to achieve the effect of high sensitivity, fast detection, simple structure

Active Publication Date: 2014-08-13
ZHEJIANG HI TECH ENVIRONMENTAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The national standard ("Determination of N-(1-naphthyl) ethylenediamine azo spectrophotometry of water quality aniline compounds" GB11889-89) determination method is the main method for determining aniline compounds in water at present, but its determination time is longer, The operation is cumbersome and requires certain instruments and equipment. It can only be completed in a laboratory or laboratory, and it is carried out by professional analysis and testing personnel. failure to exhibit poor stability

Method used

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  • Kit for detecting anilines compounds in water body
  • Kit for detecting anilines compounds in water body

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0024] The specific steps of the preparation method of the test card are as follows:

[0025] a. Weigh 2 g of N-(1 naphthyl) ethylenediamine hydrochloride (color developer) and add 100 mL of absolute ethanol, then add 10 g of talcum powder and 10 g of polyvinylpyrrolidone K3010 g, stir evenly, and obtain X solution;

[0026] b. Fix the mixed cellulose ester filter membrane on the absorbent paper, stir quickly to make the a solution in a uniform suspension state, absorb 0.1mL and drop it on the fixed position of the filter membrane to make it dry quickly;

[0027] c. Fix the absorbent paper with the fixed filter membrane on the PVC rubber plate, and then fix it on the detection card seat, and cover the bottom with a closed reaction pool and a circular perforation (accurately positioned at the position of the color developer in b) ) cover;

[0028] d. Sealed package with black nylon film.

[0029] The present invention is used to test the aniline compounds in the water body ac...

Embodiment 1

[0037] Example 1: Detection of aniline compounds at the outlet of the supporting sewage treatment plant of the printing and dyeing factory;

[0038] In a printing and dyeing wastewater treatment plant in Shaoxing City, the chroma of the effluent was lower than 20 times. PE straws were used to draw water from the outlet of the factory, and one drop was added to the reaction pool of the test card; two drops of test solution A and one drop of test solution B were added successively. After 30 seconds, add a drop of test solution C, and mix well with a straw; after one minute, tear off the black nylon film of the test card, and take the test solution A, B, and C mixed in succession. One drop of the liquid into the detection hole, observe the color of the thin layer of the color developer in the detection hole, after a few seconds, the thin layer of the color developer coated with purple-red circular plaques, which is positive, proves that the water sample contains aniline compounds....

Embodiment 2

[0040] Example 2: Detection of aniline compounds at the discharge outlet of the sewage treatment plant in the electroplating park;

[0041]In a wastewater treatment plant in an electroplating park in Wenzhou City, the chroma of the effluent water was lower than 20 times. PE straws were used to draw water from the discharge port of the factory, and 1 drop was added to the reaction pool of the test card; 1 drop, use a pipette to mix evenly; after 30 seconds, add 1 drop of test solution C, and use a straw to mix evenly; after one minute, tear off the black nylon film of the test card, and add test solution A, B, One drop of the mixed solution of C into the detection hole, observe the color of the thin layer of color developing agent in the detection hole, after 30 minutes, there is still no color change, the thin layer of color developing agent coated remains milky white, and the test result is negative, which proves that the water sample The aniline compounds in the water sample...

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Abstract

The invention discloses a kit for detecting anilines compounds in a water body. The kit comprises a dropping bottle filled with detection liquid A, a dropping bottle filled with detection liquid B, a dropping bottle filled with detection liquid C, a suction pipe and a detection card, wherein the detection liquid A is a 0.2mol / L dilute sulphuric acid solution, the detection liquid B is a 2.5g / L sodium nitrite solution, the detection liquid C is a 20% ammonium sulfamate solution, the detection card is formed by a shell cover and a shell base through connection, a purple red positive control color lump and a milk white negative control color lump are arranged on the shell cover, a reaction tank and a detection hole are formed in the shell cover, the reaction tank is not communicated with the detection hole, a test strip is arranged on the shell base and comprises a PVC (polyvinyl chloride) rubber slab used as a support structure, absorbent paper is bonded on the PVC rubber slab, a mixed cellulose ester filter membrane layer is arranged on the absorbent paper, and a thin dried color developing agent enveloped layer is arranged on the mixed cellulose ester filter membrane layer. The kit can rapidly detect the anilines compounds with the minimum concentration of 0.5mg / L.

Description

technical field [0001] The invention relates to a rapid detection kit, in particular to a kit for detecting aniline compounds in water bodies. Background technique [0002] Aniline compounds are important chemical raw materials in pharmaceutical, dye production, printing and dyeing industries. They are highly water-soluble and difficult to degrade. They have genotoxic effects on human body and microorganisms, and long-term exposure can cause cancer. Aniline compounds in water mainly come from the discharge of industrial wastewater related to the production or use of aniline compounds and their derivative chemicals (such as dyes). cause potential harm. Since the content of aniline compounds in general industrial wastewater is relatively low relative to indicators such as COD, ammonia nitrogen, total nitrogen, and total phosphorus, the existence of this pollutant in water has not been paid enough attention. However, as people have higher and higher requirements on environmen...

Claims

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Application Information

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IPC IPC(8): G01N21/78
Inventor 楼洪海吴勇民陈新才沈嵬钱波张波申长远
Owner ZHEJIANG HI TECH ENVIRONMENTAL TECH
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