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A kind of ozone detection reagent and its preparation device and preparation method

A technology of detection reagent and preparation device, applied in the field of ozone detection reagent and preparation device and preparation thereof, can solve problems such as deviation of detection results, and achieve the effects of high accuracy, good promotion and use value, and low consumption

Active Publication Date: 2022-05-17
SICHUAN UNIVERSITY OF SCIENCE AND ENGINEERING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the use of gas-liquid phase chemical interface chemiluminescence detection method to detect ozone gas mainly uses alkaline luminol as a detection reagent. Using luminol as a detection reagent has the advantages of high sensitivity and fast response time, but it will be affected by secondary gases in the air. Nitrogen oxide and peroxyacetyl nitrate and other gases interfere, causing deviations in the test results

Method used

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  • A kind of ozone detection reagent and its preparation device and preparation method
  • A kind of ozone detection reagent and its preparation device and preparation method

Examples

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preparation example Construction

[0052] When using the preparation device of the above-described ozone detection reagent for ozone detection reagent preparation, it may include the following steps.

[0053] Step 1: Configuration of the original reagent

[0054] Potassium hydroxide and sodium 2,7-dihydroxynaphthalene-3,6-disulfonate were dissolved in ultrapure water, after adding traton x-100, stirred to obtain a suspension and shaken to obtain the original reagent, the original reagent was loaded into the original reagent storage unit 4 for storage.

[0055] Wherein, the ratio of potassium hydroxide, sodium 2,7-dihydroxynaphthalene-3,6-disulfonate to travaton x-100 is (1 to 100): 1:(1~150); sodium 2,7-dihydroxynaphthalene-3,6-disulfonate in the original reagent is 0.00001~1mol / L, travaton x-100 concentration is 0.01~50g / L, potassium hydroxide concentration is 0.0001~1mol / L; preferably, the 2,7-dihydroxynaphthalene-3 in the original reagent, The concentration of sodium 6-disulfonate is 0.0001~0.001mol / L, the conce...

Embodiment 1

[0065] Example 1: The ozone physical examination test agent prepared using the present invention is used to detect the concentration of ozone gas in the air

[0066] Step 1: Preparation of the original reagent

[0067] The desired original reagent was configured with deionized water, the original reagent comprised 2,7-dihydroxynaphthalene-3,6-disulfonate sodium, travaton x-100 and potassium hydroxide, sodium 2,7-dihydroxynaphthalene-3,6-disulfonate at a concentration of 0.0001mol / L, terraton x-100 at a concentration of 16 g / L, potassium hydroxide at a concentration of 0.1 mol / L.

[0068] Step 2: Preparation of ozone detection reagents

[0069] Use as Figure 1 The ozone detection reagent preparation apparatus shown is prepared for the preparation of ozone detection reagents, specifically, the original reagent is continuously pumped into the photoactivation unit 7 by the pump pump 5, and the original reagent is fully photoactivated by ultraviolet rays with a wavelength of 254 nm 7...

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Abstract

The invention discloses an ozone detection reagent, a preparation device and a preparation method thereof. The ozone detection reagent consists of an original reagent comprising 2,7-dihydroxynaphthalene-3,6-disulfonate sodium, potassium hydroxide and triton x-100 It is obtained after activation by ultraviolet light. The preparation method comprises the following steps: dissolving potassium hydroxide and sodium 2,7-dihydroxynaphthalene-3,6-disulfonate in ultrapure water, adding triton x-100, stirring to obtain a suspension, and oscillating to mix evenly to obtain The original reagent: the ozone detection reagent is obtained after the original reagent is irradiated with ultraviolet light to complete the ultraviolet light activation. The preparation device includes: an original reagent liquid storage unit; a photoactivation unit; a detection reagent liquid storage unit; and a reagent delivery unit. Based on gas-liquid phase chemiluminescence detection technology and photoactivation technology, the present invention realizes the preparation of ozone on-line detection reagent, and uses the detection reagent to detect ozone gas, which has the advantages of high sensitivity, high selectivity, high accuracy, low consumption, convenience and quickness, etc. .

Description

Technical field [0001] The present invention relates to the technical field of ozone detection, more particularly, to an ozone detection reagent and a preparation apparatus and preparation method thereof. Background [0002] Ozone is a polluting gas, with strong oxidation activity, its damage to the human respiratory tract is greater, and high concentrations of ozone also have greater harm to plants, which will reduce crop yields. At present, all countries have taken ozone concentration as the main indicator of environmental testing, the current detection method of ozone is mainly ultraviolet absorption photometry, the method requires simple and cheap instruments and simple and convenient operation, but it is easy to be affected by particulate matter, mercury vapor and aromatic hydrocarbon substances in the gas, resulting in inaccurate detection results. [0003] Gas-liquid phase interface chemiluminescence detection technology is a highly sensitive detection technology, which h...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/76G01N21/63G01N21/01
CPCG01N21/76G01N21/63G01N21/01Y02A50/20
Inventor 付大友唐连波王竹青谭文渊袁东陈琦曾晨
Owner SICHUAN UNIVERSITY OF SCIENCE AND ENGINEERING