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Quaternary ammonium salt disinfectant concentration detection chemical indicator card, mother liquor and preparation method of quaternary ammonium salt disinfectant concentration detection chemical indicator card

A chemical indicator card and concentration detection technology, which is applied in the direction of material analysis by observing the influence of chemical indicators, and analysis by making materials undergo chemical reactions, etc. It can solve the problems of cumbersome preparation steps, many types of raw material reagents, and complicated processes. question

Pending Publication Date: 2022-01-14
HANGZHOU HYGEN HEALTH BIOTECHNOLOGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] As in the prior art, the Chinese patent publication number is CN104198480A "a kind of water quality quaternary ammonium salt detection test paper and its preparation method", and the test paper agent made by it has utilized the color change of bromocresol green and methylene blue solution to indicate the concentration of quaternary ammonium salt in water However, there are many types of raw material reagents used, cumbersome preparation steps, complicated process, and correspondingly high cost

Method used

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  • Quaternary ammonium salt disinfectant concentration detection chemical indicator card, mother liquor and preparation method of quaternary ammonium salt disinfectant concentration detection chemical indicator card
  • Quaternary ammonium salt disinfectant concentration detection chemical indicator card, mother liquor and preparation method of quaternary ammonium salt disinfectant concentration detection chemical indicator card
  • Quaternary ammonium salt disinfectant concentration detection chemical indicator card, mother liquor and preparation method of quaternary ammonium salt disinfectant concentration detection chemical indicator card

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] Embodiment 1: (variable is: bromophenol blue mass fraction 0.03%, Pingpingjia O-25 mass fraction 0.1%, ethanol mass fraction is 19.4%, polyethylene glycol mass fraction is 1.2%, polyvinyl pyrrolidone quality score is 2%)

[0048] Take 16.67 g of ethanol with a volume fraction of 95% and dissolve 0.025 g of bromophenol blue and 0.0825 g of Pingpingjia O-25 to obtain solution A.

[0049] pH buffer solution: prepare 0.1mol / L anhydrous citric acid solution with deionized water, prepare 0.2mol / L disodium hydrogen phosphate solution with deionized water, and prepare according to the volume ratio of disodium hydrogen phosphate and citric acid 2.18:17.82 pH buffer, pH 2.6.

[0050] 0.99 g of polyethylene glycol and 1.65 g of polyvinylpyrrolidone (PVP K30) were sequentially dissolved in 66.6 g of the above pH buffer solution, and mixed to obtain solution B.

[0051] Mix solution A and solution B uniformly to obtain 86.02 g of mother liquor, and the pH of mother liquor is 2.8. ...

Embodiment 2

[0064] Embodiment 2 (variable is: bromophenol blue mass fraction 0.04%, Pingpingjia O-25 mass fraction 0.1%, ethanol mass fraction is 19.4%, polyethylene glycol mass fraction is 1.2%, polyvinylpyrrolidone mass fraction 2%) take 12.5 g of ethanol with a volume fraction of 95% to dissolve 0.025 g of bromophenol blue and 0.0625 g of Pingping and add O-25 to obtain solution A.

[0065] pH buffer solution: prepare 0.1mol / L anhydrous citric acid solution with deionized water, prepare 0.2mol / L disodium hydrogen phosphate solution with deionized water, and prepare according to the volume ratio of disodium hydrogen phosphate and citric acid 2.18:17.82 pH buffer, pH 2.6.

[0066] 0.75g polyethylene glycol and 1.25g polyvinylpyrrolidone (PVP K30) were successively dissolved in 50g of the above-mentioned pH buffer solution, and mixed to obtain solution B.

[0067] Mix solution A and solution B uniformly to obtain 64.59 g of mother liquor, and the pH of mother liquor is 2.8.

[0068] The...

Embodiment 3

[0080] Embodiment 3 (variable is: bromophenol blue mass fraction 0.05%, Pingpingjia O-25 mass fraction 0.1%, ethanol mass fraction is 19.3%, polyethylene glycol mass fraction is 1.2%, polyvinylpyrrolidone mass fraction 2%) take 10 g of ethanol with a volume fraction of 95% and dissolve 0.025 g of bromophenol blue and 0.05 g of Pingping O-25 to obtain solution A.

[0081] pH buffer solution: prepare 0.1mol / L anhydrous citric acid solution with deionized water, prepare 0.2mol / L disodium hydrogen phosphate solution with deionized water, and prepare according to the volume ratio of disodium hydrogen phosphate and citric acid 2.18:17.82 pH buffer, pH 2.6.

[0082] 0.6g polyethylene glycol and 1.0g polyvinylpyrrolidone (PVP K30) were successively dissolved in 40g of the above-mentioned pH buffer solution, and mixed to obtain solution B.

[0083] Mix solution A and solution B uniformly to obtain 51.68gl of mother liquor, and the pH of mother liquor is 2.8.

[0084] The absorbent pa...

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PUM

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Abstract

The invention discloses a quaternary ammonium salt disinfectant concentration detection chemical indicator card and a preparation method thereof. The chemical indicator card comprises absorbent paper loaded with color-changing reaction active matter and a PVC carrier strip, the absorbent paper is further loaded with adjuvants including a leveling agent, a color fixing agent and a pH buffering agent, and the adjuvants are mixed according to a certain preparation sequence. The color-changing reaction active matter, the leveling agent, the color fixing agent and the pH buffering agent are firstly prepared into mother liquor, then the absorbent paper is soaked in the mother liquor, dried and pasted to the PVC carrier strip, and the chemical indicator card for detecting the concentration of the quaternary ammonium salt disinfectant is obtained and can be used for rapidly detecting the concentration of quaternary ammonium salt sterilization factors in the quaternary ammonium salt disinfectant. The invention is suitable for detection of sterilization factors when quaternary ammonium salt on the surface of an object in a hospital is disinfected, and the detection range is 0-1000 ppm.

Description

technical field [0001] The invention relates to the technical field of disinfectant concentration detection, in particular to a chemical indicator card for concentration detection of quaternary ammonium salt disinfectant, mother liquor and a preparation method thereof. Background technique [0002] Disinfectants are preparations that can kill microorganisms on the transmission medium and meet the disinfection requirements. According to their ability to kill microorganisms, disinfectants can be divided into: sterilizers, high-efficiency disinfectants, medium-efficiency disinfectants, and low-efficiency disinfectants. [0003] According to the "Technical Specifications for Disinfection in Medical Institutions WS / T367", the compound of quaternary ammonium salt disinfectants (such as benzalkonium chloride, etc.), alcohols and quaternary ammonium salt compounds belongs to the middle and low level disinfectants. The environmental surface cleaning and disinfection management stand...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/78
CPCG01N21/78
Inventor 钟明伟蔡文泰尹瑞周平乐
Owner HANGZHOU HYGEN HEALTH BIOTECHNOLOGY CO LTD
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