Test paper for testing concentration of ortho-phthalaldehyde disinfectant

A technology for detecting the concentration of o-phthalaldehyde, which is applied in the direction of analyzing materials through chemical reactions and observing the influence of chemical indicators. problems, to achieve the effect of rapid and sensitive response, simple and convenient, and short color development time

Inactive Publication Date: 2015-06-03
北京红辉力上科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But at present, the methods that can detect the content of o-phthalaldehyde include ultraviolet spectrophotometer method, high performance liquid phase analysis method and chemical titration method, etc., these several methods al

Method used

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  • Test paper for testing concentration of ortho-phthalaldehyde disinfectant
  • Test paper for testing concentration of ortho-phthalaldehyde disinfectant
  • Test paper for testing concentration of ortho-phthalaldehyde disinfectant

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] 1. Test paper formula:

[0015] Preparation solution A: 0.5%-10% sodium sulfite aqueous solution;

[0016] To prepare mixed indicator solution B:

[0017]

[0018] 2. Test paper production method:

[0019] 1) Select the fine and smooth filter test paper base paper and cut it into a square with a side length of about 15 cm, and dry it in a bellows for later use;

[0020] 2) Pour the prepared solution A into the glass box for about 10 minutes, completely soak the paper in the solution A, make the paper fully absorbed to saturation, take it out, then put it in the bellows and fix it with clips, dry it, and keep the temperature of the bellows at 30°C -50°C, dry for about half an hour, take it out.

[0021] 3) Pour the prepared B liquid into another glass box, completely soak the paper dried in the above step 2 in the B liquid, fully absorb to saturation, take it out, put it in a bellows for drying, and keep the temperature of the bellows at 30 ℃—50℃, dry for about ha...

Embodiment 2

[0025] 1. Test paper formula:

[0026] Preparation solution A: 0.5%-10% sodium sulfite aqueous solution;

[0027] To prepare mixed indicator solution B:

[0028]

[0029] The test paper making method is the same as above.

[0030] How to use the test strip:

[0031] Fully submerge the indicator pad at the end of the test strip into the container of test solution, hold for one second and then remove. 1 minute after the test strip is removed from the solution, read the result indicating the color reaction of the pad. Interpret the test results according to the color chart on the test strip bottle.

[0032] 1. When the indicator pad is blue-purple, it proves that the OPA solution is above the effective concentration, that is, the concentration is above 0.3%. The blue-purple color from light to dark indicates the concentration of OPA solution from low to high.

[0033] 2. If the indicator pad becomes flowery, that is, the blue-purple becomes lighter and less, and yellow a...

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Abstract

The invention provides test paper for testing the concentration of an ortho-phthalaldehyde disinfectant. The test paper comprises a base plate and a reaction cushion pasted on the base plate, wherein the reaction cushion is obtained by drying filter paper which is dipped in a sulfite solution and a pH mixing indicating agent solution; when the content of ortho-phthalaldehyde is greater than the minimum effective concentration, the pH value of a reaction product completely exceeds the color change point of the mixing indicating agent, the test paper reaction cushion is completely changed into blue purple from yellow, and the higher the concentration of ortho-phthalaldehyde is, the darker the blue purple color on the test paper reaction cushion is. The test paper is rapid and flexible in reaction, is short in color developing time, can be taken out when being dipped into the ortho-phthalaldehyde disinfectant for one second, can analyze the testing result in one minute by referring to a color chart of an operation instruction, is simple, convenient and rapid to use, and is conveniently used for detecting medical instruments, such as an endoscope in the disinfection process any time by medical staff in a hospital.

Description

technical field [0001] The invention relates to a detection test paper, in particular to a detection test paper for the concentration of disinfectant. Background technique [0002] O-phthalaldehyde disinfectant is a high-level disinfectant used for endoscopes, various dialysis, breathing, anesthesia equipment and other moisture-resistant and heat-resistant medical devices. When the concentration is 0.3%, the disinfection requirement cannot be met and it must be discarded and cannot be reused. But at present, the methods that can detect the content of o-phthalaldehyde include ultraviolet spectrophotometer method, high performance liquid phase analysis method and chemical titration method, etc., these several methods all exist loaded down with trivial details and complicated operation, the time is longer, and the cost is higher The disadvantage is that it is not suitable for monitoring and using at any time during the disinfection process of hospital medical staff. Contents...

Claims

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Application Information

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IPC IPC(8): G01N21/80
Inventor 张小凤吕庆江刘洪亮
Owner 北京红辉力上科技有限公司
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