Long-chain alkyltrimethyl ammonium sensitizing mixed reagent paper for measuring ammonia in air and preparation method thereof

A technology of long-chain alkyltrimethylammonium and air, which is applied in the direction of measuring devices, material analysis and instruments by observing the influence of chemical indicators, and can solve the problems of unsuitable rapid detection and on-site determination by non-professionals , to achieve the effect of clear edge, high precision and obvious discoloration of test paper reaction color

Inactive Publication Date: 2019-02-19
SHENYANG LIGONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although its method is mature and highly accurate, it is not suitable for rapid detection and on-site determination by non-professionals

Method used

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  • Long-chain alkyltrimethyl ammonium sensitizing mixed reagent paper for measuring ammonia in air and preparation method thereof
  • Long-chain alkyltrimethyl ammonium sensitizing mixed reagent paper for measuring ammonia in air and preparation method thereof
  • Long-chain alkyltrimethyl ammonium sensitizing mixed reagent paper for measuring ammonia in air and preparation method thereof

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Embodiment 1

[0044] A long-chain alkyltrimethylammonium sensitizing mixed reagent test paper for measuring ammonia in the air, specifically, bromocresol purple sodium salt, bromothymol blue sodium salt, and surfactant hexadecyl are loaded on the chromatographic filter paper The test paper of trimethylammonium bromide (CTMAB) is by mass ratio, bromocresol purple sodium salt: bromothymol blue sodium salt: surfactant cetyltrimethylammonium bromide (CTMAB)=6: 8:0.1.

[0045] The long-chain alkyltrimethylammonium sensitizing mixed reagent test paper for measuring ammonia in the air has a length of 40-80 mm and a width of 2-5 mm.

[0046] A preparation method of a long-chain alkyltrimethylammonium sensitizing mixed reagent test paper for measuring ammonia in air, comprising the following steps:

[0047]Step 1, Prepare Soaking Solution

[0048] Bromocresol purple sodium salt was dissolved in ammonia-free water to obtain bromocresol purple sodium salt solution;

[0049] Dissolving bromothymol b...

Embodiment 2

[0077] A long-chain alkyltrimethylammonium sensitizing mixed reagent test paper for measuring ammonia in the air, which is a qualitative filter paper loaded with bromocresol purple sodium salt, bromothymol blue sodium salt, and surfactant cetyltrimethyl ammonium chloride (CTMAC); by mass ratio, bromocresol purple sodium salt, bromothymol blue sodium salt, surfactant cetyltrimethylammonium chloride (CTMAC) = 6:8:0.1.

[0078] The long-chain alkyltrimethylammonium sensitizing mixed reagent test paper for measuring ammonia in the air has a length of 80mm and a width of 4mm.

[0079] A preparation method of a long-chain alkyltrimethylammonium sensitizing mixed reagent test paper for measuring ammonia in air, comprising the following steps:

[0080] Step 1, Prepare Soaking Solution

[0081] Add a certain proportion of bromothyme pink sodium salt, bromocresol purple sodium salt, and a surfactant into a container of a certain volume, dilute to the volume with ammonia-free water, and...

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Abstract

The invention relates to a long-chain alkyltrimethyl ammonium sensitizing mixed reagent paper for measuring ammonia in air and preparation method thereof, belongs to the field of rapid environmental detection and industrial hygiene. The test paper is loaded with bromocresol purple sodium salt, bromothymol blue sodium salt, and surfactant long-chain alkyl trimethyl ammonium on the base paper according to the mass ratio, bromocresol purple sodium salt: bromo thymol blue sodium salt: surfactant long-chain alkyl trimethyl ammonium = (4~8): (6~10): (0.02~0.2). The preparation method comprises the following steps of: preparing the soaking solution according to the load reagent; soaking the base paper; drying and encapsulating. The test paper is made to change from the yellow to blue-violet basedon the reaction between ammonia gas in combination with bromocresol purple sodium salt and bromothymol blue sodium salt. The color change is obvious, the color of the test paper reaction is clear, itis easy to observe and measure, and the precision is high. The long-chain alkyltrimethyl ammonium makes the bromocresol purple sodium salt and the bromothymol blue sodium salt disperse better, and makes its uniformity on the filter paper better, thus the length of the test paper discoloration band is increased, and the sensitivity is increased.

Description

technical field [0001] The invention belongs to the fields of rapid environmental detection and industrial sanitation, and relates to a long-chain alkyltrimethylammonium sensitizing mixed reagent test paper for measuring ammonia in the air and a preparation method thereof. Background technique [0002] The excessive presence of ammonia in the air reduces the moisture of the skin tissue, and even denatures the tissue protein and deteriorates the cell membrane structure. It can reduce the resistance of the human body, because ammonia gas has a paralyzing effect, allowing pathogens to enter the human body, and the human body will be damaged due to the invasion of pathogens. In daily life, the concentration of ammonia gas higher than the normal value is harmful to human body, poultry, plants and so on. We should always pay attention to the source of ammonia in life and the content of ammonia in the working environment, and take precautions. Therefore, in the relevant environme...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/78
CPCG01N21/783G01N2021/7759
Inventor 高俊杰刘晓鹏余萍
Owner SHENYANG LIGONG UNIV
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