Methylbenzene detection reagent and preparation method thereof

A detection reagent, toluene technology, applied in the field of toluene detection reagent in indoor air and its preparation, can solve problems such as insufficient understanding, and achieve the effects of simple use, convenient portability and simple process

Inactive Publication Date: 2015-02-25
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

[0021] A kind of toluene detection reagent of the present embodiment is made from the following raw materials in parts by weight: 34 parts of ethanol, 10 parts of strong base, 6 parts of p-sulfonamide benzoic acid, 19 parts of sodium iodide, 9 parts of phenanthroline, α - 10 parts of ketoglutaric acid, 6 parts of sulfonamide benzoic acid and 16 parts of acetic acid.

[0022] The strong base is beryllium hydroxide.

[0023] The preparation method of the toluene detection reagent in this example is: mix the above components evenly.

[0024] The method of using the toluene detection reagent in this embodiment is as follows: absorb the gas to be tested and pass it into the detection reagent, heat it to 45-50°C, let it stand for 15-20 minutes, and observe the color change. The change of color proves that the concentration of toluene in the gas to be tested is greater than 0.5mg / m3.

Embodiment 2

[0026] A kind of toluene detection reagent of the present embodiment is made from the following raw materials in parts by weight: 30 parts of ethanol, 6 parts of strong base, 2 parts of p-sulfonamide benzoic acid, 15 parts of sodium iodide, 5 parts of phenanthroline, α - 6 parts of ketoglutaric acid, 2 parts of sulfonamide benzoic acid and 11 parts of acetic acid.

[0027] The strong base is beryllium hydroxide.

[0028] The preparation method of the toluene detection reagent in this example is: mix the above components evenly.

[0029] The method of using the toluene detection reagent in this embodiment is as follows: absorb the gas to be tested and pass it into the detection reagent, heat it to 45-50°C, let it stand for 15-20 minutes, and observe the color change. The change of color proves that the concentration of toluene in the gas to be tested is greater than 0.5mg / m3.

Embodiment 3

[0031] A kind of toluene detection reagent of the present embodiment is made from the following raw materials in parts by weight: 31 parts of ethanol, 7 parts of strong base, 3 parts of p-sulfonamide benzoic acid, 16 parts of sodium iodide, 6 parts of phenanthroline, α - 7 parts of ketoglutaric acid, 3 parts of sulfonamide benzoic acid and 12 parts of acetic acid.

[0032] The strong base is lithium hydroxide.

[0033] The preparation method of the toluene detection reagent in this example is: mix the above components evenly.

[0034] The method of using the toluene detection reagent in this embodiment is as follows: absorb the gas to be tested and pass it into the detection reagent, heat it to 45-50°C, let it stand for 15-20 minutes, and observe the color change. The change of color proves that the concentration of toluene in the gas to be tested is greater than 0.5mg / m3.

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PUM

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Abstract

The invention discloses a methylbenzene detection reagent and a preparation method thereof. The methylbenzene detection reagent comprises the following raw materials in parts by weight: 30-34 parts of ethyl alcohol, 6-10 parts of strong base, 2-6 parts of sulfonamide benzoic acid, 15-19 parts of sodium iodide, 5-9 parts of orthophenanthroline, 6-10 parts of alpha-oxoglutarate, 2-6 parts of sulfamide benzoic acid and 11-16 parts of acetic acid. The methylbenzene detection reagent is used for performing on-site analysis detection, is convenient to carry, easy to use, quick and flexible and has the advantages of visibility, quickness, trace, accuracy and high reproducibility; furthermore, a process is simple, the production cost is low, and the methylbenzene detection reagent is environmentally-friendly.

Description

technical field [0001] The invention relates to a detection reagent, in particular to a detection reagent for toluene 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. Accordin...

Claims

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Application Information

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IPC IPC(8): G01N21/78
Inventor 熊开胜张海防谢建庭
Owner DONGCHEN LEADER TESTING
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