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Reagent for detecting dimethylbenzene and preparation method of reagent

A detection reagent and xylene technology are applied in the field of xylene detection reagent in indoor air and its preparation, which can solve the problems of insufficient understanding and the like, and achieve the effects of simple use, simple process and low production cost

Inactive Publication Date: 2015-03-04
DONGCHEN LEADER TESTING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In fact, people have not yet achieved sufficient awareness of the harm of indoor environmental pollution.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] The xylene detection reagent of this embodiment is prepared from the following raw materials in parts by weight: 34 parts of ethanol, 10 parts of strong base, 6 parts of disodium edetate, 19 parts of nitrite, N,N-di 9 parts of methyl formamide, 10 parts of phenanthroline, 6 parts of sulfonamide benzoic acid and 16 parts of anhydrous ether.

[0019] The strong base is beryllium hydroxide.

[0020] The preparation method of the xylene detection reagent in this embodiment is as follows: the above components are mixed uniformly.

[0021] The method of using the xylene detection reagent in this embodiment is: suck the gas to be tested into the detection reagent, heat it to 45-50° C., stand for 15-20 minutes, and observe the color change. The color change proves that the concentration of xylene in the gas to be measured is greater than 0.5mg / m3.

Embodiment 2

[0023] The xylene detection reagent of this embodiment is prepared from the following parts by weight of raw materials: 30 parts by weight of ethanol, 6 parts by strong base, 2 parts by disodium edetate, 15 parts by nitrite, N,N-di 5 parts of methyl formamide, 6 parts of phenanthroline, 2 parts of sulfonamide benzoic acid and 11 parts of anhydrous ether.

[0024] The strong base is beryllium hydroxide.

[0025] The preparation method of the xylene detection reagent in this embodiment is as follows: the above components are mixed uniformly.

[0026] The method of using the xylene detection reagent in this embodiment is: suck the gas to be tested into the detection reagent, heat it to 45-50° C., stand for 15-20 minutes, and observe the color change. The color change proves that the concentration of xylene in the gas to be measured is greater than 0.5mg / m3.

Embodiment 3

[0028] A xylene detection reagent of this embodiment is prepared from the following parts by weight of raw materials: 31 parts by weight of ethanol, 7 parts by strong base, 3 parts by disodium edetate, 16 parts by nitrite, N,N-di 6 parts of methyl formamide, 7 parts of phenanthroline, 3 parts of sulfonamide benzoic acid and 12 parts of anhydrous ether.

[0029] The strong base is lithium hydroxide.

[0030] The preparation method of the xylene detection reagent in this embodiment is as follows: the above components are mixed uniformly.

[0031] The method of using the xylene detection reagent in this embodiment is: suck the gas to be tested into the detection reagent, heat it to 45-50° C., stand for 15-20 minutes, and observe the color change. The color change proves that the concentration of xylene in the gas to be measured is greater than 0.5mg / m3.

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Abstract

The invention discloses a reagent for detecting dimethylbenzene and a preparation method of the reagent. The reagent comprises the following raw materials in parts by weight: 30-34 parts of alcohol, 6-10 parts of strong base, 2-6 parts of ethylenediaminetetraacetic acid disodium salt, 15-19 parts of nitrite, 5-9 parts of N,N-dimethylformamide, 6-10 parts of orthophenanthroline, 2-6 parts of sulfamoylbenzoic acid and 11-16 parts of absolute ether. The reagent realizes in-site analysis detection, is convenient to carry, simple to use, rapid and flexible, has the advantages of perceptual intuition, rapidness, trace amount, accuracy and high reproducibility, and is simple in process, low in production cost, and is environmental-friendly.

Description

technical field [0001] The invention relates to a detection reagent, in particular to a xylene detection reagent in indoor air and a preparation method thereof. Background technique [0002] In recent years, my country has successively formulated a series of standards related to the indoor environment, from the use of building decoration materials to the limitation of pollutant content in indoor air, and strictly monitors the indoor environment in all directions to ensure the health of the people. Therefore, people often think that modern living conditions are constantly improving, and indoor environmental pollution has been controlled. Actually otherwise, people are far from reaching enough awareness to the harm of indoor environmental pollution. [0003] It should be noted that while my country's economy is developing rapidly, indoor environmental pollution caused by construction, decoration and furniture has become a major killer affecting people's health. According to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/78
Inventor 熊开胜张海防谢建庭
Owner DONGCHEN LEADER TESTING
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