N-undecane detection reagent and preparation method thereof

Abstract

The invention discloses an n-undecane detection reagent and a preparation method thereof. The n-undecane detection reagent comprises the following raw materials in parts by weight: 30-34 parts of methanol, 6-10 parts of strong base, 2-6 parts of fumaric acid, 15-19 parts of acetone, 5-9 parts of 1-naphthylamine-4-sulfonic acid, 6-10 parts of tea polyphenol, 2-6 parts of sodium persulfate and 11-16 parts of glycine. The n-undecane detection reagent is subjected to field analysis and detection, is convenient to carry, easy to use, rapid and flexible, has the advantage of intuitiveness, rapidness, micro amount, accuracy and high reproducibility and is simple in process, low in production cost and environmental-friendly.

Description

technical field

[0001] The invention relates to a detection reagent, in particular to a detection reagent for n-undecane 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. Accor...

Examples

Embodiment 1

[0018] A n-undecane detection reagent of this embodiment is prepared from the following raw materials in parts by weight: 34 parts of methanol, 10 parts of strong base, 6 parts of mufuric acid, 19 parts of acetone, 1-naphthylamine-4-sulfonic acid 9 parts, 10 parts of tea polyphenols, 6 parts of sodium persulfate and 16 parts of glycine. The strong base is beryllium hydroxide.

[0019] The preparation method of the n-undecane detection reagent in this example is: mix the above components evenly.

[0020] The method of using the n-undecane 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 n-undecane in the gas to be tested is greater than 0.5mg / m3.

Embodiment 2

[0022] A n-undecane detection reagent in this embodiment is prepared from the following raw materials in parts by weight: 30 parts of methanol, 6 parts of strong base, 2 parts of mufuric acid, 15 parts of acetone, 1-naphthylamine-4-sulfonic acid 5 parts, 6 parts of tea polyphenols, 2 parts of sodium persulfate and 11 parts of glycine.

[0023] The strong base is beryllium hydroxide.

[0024] The preparation method of the n-undecane detection reagent in this example is: mix the above components evenly.

[0025] The method of using the n-undecane 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 n-undecane in the gas to be tested is greater than 0.5mg / m3.

Embodiment 3

[0027] A n-undecane detection reagent of this embodiment is prepared from the following raw materials in parts by weight: 31 parts of methanol, 7 parts of strong base, 3 parts of mufuic acid, 16 parts of acetone, 1-naphthylamine-4-sulfonic acid 6 parts, 7 parts of tea polyphenols, 3 parts of sodium persulfate and 12 parts of glycine.

[0028] The strong base is lithium hydroxide.

[0029] The preparation method of the n-undecane detection reagent in this example is: mix the above components evenly.

[0030] The method of using the n-undecane 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 n-undecane in the gas to be tested is greater than 0.5mg / m3.

technical field

[0001] The invention relates to a detection reagent, in particular to a detection reagent for n-undecane 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. Accor...

Examples

Embodiment 1

[0018] A n-undecane detection reagent of this embodiment is prepared from the following raw materials in parts by weight: 34 parts of methanol, 10 parts of strong base, 6 parts of mufuric acid, 19 parts of acetone, 1-naphthylamine-4-sulfonic acid 9 parts, 10 parts of tea polyphenols, 6 parts of sodium persulfate and 16 parts of glycine. The strong base is beryllium hydroxide.

[0019] The preparation method of the n-undecane detection reagent in this example is: mix the above components evenly.

[0020] The method of using the n-undecane 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 n-undecane in the gas to be tested is greater than 0.5mg / m3.

Embodiment 2

[0022] A n-undecane detection reagent in this embodiment is prepared from the following raw materials in parts by weight: 30 parts of methanol, 6 parts of strong base, 2 parts of mufuric acid, 15 parts of acetone, 1-naphthylamine-4-sulfonic acid 5 parts, 6 parts of tea polyphenols, 2 parts of sodium persulfate and 11 parts of glycine.

[0023] The strong base is beryllium hydroxide.

[0024] The preparation method of the n-undecane detection reagent in this example is: mix the above components evenly.

[0025] The method of using the n-undecane 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 n-undecane in the gas to be tested is greater than 0.5mg / m3.

Embodiment 3

[0027] A n-undecane detection reagent of this embodiment is prepared from the following raw materials in parts by weight: 31 parts of methanol, 7 parts of strong base, 3 parts of mufuic acid, 16 parts of acetone, 1-naphthylamine-4-sulfonic acid 6 parts, 7 parts of tea polyphenols, 3 parts of sodium persulfate and 12 parts of glycine.

[0028] The strong base is lithium hydroxide.

[0029] The preparation method of the n-undecane detection reagent in this example is: mix the above components evenly.

[0030] The method of using the n-undecane 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 n-undecane in the gas to be tested is greater than 0.5mg / m3.