A kind of assay test paper and rapid assay method for glutaraldehyde

A technology of glutaraldehyde and test paper, applied in the field of chemical analysis, can solve the problems of long color development time of test paper, inconvenient real-time regulation of glutaraldehyde on site, etc., so as to save the cost of additional equipment and personnel training, save the test cost, and reduce the color development fast effect

Active Publication Date: 2022-03-25
GUANGDONG HUANKAI MICROBIAL SCI & TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are only test papers for measuring 1.8% glutaraldehyde in the market, that is, the test paper does not change color when it is lower than 1.8%, and the test paper turns yellow when it is higher than 1.8%. 3 to 10 minutes

Method used

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  • A kind of assay test paper and rapid assay method for glutaraldehyde
  • A kind of assay test paper and rapid assay method for glutaraldehyde

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 2

[0046] Use pure water to prepare a mixture containing 5.1g / L p-xylenolphthalein, 7.8g / L Orange G, 50.8g / L sodium sulfite, 41.8g / L allyltrimethylammonium chloride, and 1.75g / L polyvinyl alcohol Chromogenic solution. The chromatographic filter paper was completely soaked in the above mixture for 10 minutes, the filter paper was taken out, and vacuum-dried at 80°C. After drying, cut the filter paper into small pieces of 5×6 mm, and glue it to one end of a 5×80 mm strip-shaped bottom plate to make glutaraldehyde rapid test paper 2#.

Embodiment 3

[0048] Prepared with pure water containing 4.8g / L thymolphthalein, 2,4,6-trinitro-N-(2-nitrophenyl) aniline, 92.2g / L sodium sulfite, 56.8g / L dimethyldiallyl Ammonium chloride, 2.16g / L gum arabic mixed color developing solution. The chromatographic filter paper was completely soaked in the above mixture for 10 minutes, the filter paper was taken out, and vacuum-dried at 80°C. After drying, cut the filter paper into small pieces of 5×6 mm, and glue it to one end of a 5×80 mm strip-shaped bottom plate to make glutaraldehyde rapid test paper 3#.

[0049] Glutaraldehyde determination test paper embodiment 4

[0050] Use pure water to prepare a mixture containing 9.2g / L Alizarin Blue SA, 5.0g / L Alizarin Yellow GG, 32.5g / L Sodium Sulfite, 18.4g / L Benzyltributylammonium Chloride, and 2.16g / L Gum Arabic Chromogenic solution. The chromatographic filter paper was completely soaked in the above mixture for 10 minutes, the filter paper was taken out, and vacuum-dried at 80°C. After dry...

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Abstract

The invention discloses a test paper for measuring glutaraldehyde and a rapid measuring method. The test paper for the determination of glutaraldehyde includes color test paper, which is obtained by soaking filter paper in a color developer solution and then drying; the color developer solution contains a color developer, a neutralizer, a catalyst, and a stabilizer; Wherein, the catalyst is a cationic surfactant. The test paper for measuring glutaraldehyde also includes a substrate. The method for quickly measuring glutaraldehyde with this test paper includes the following steps: immerse the glutaraldehyde test paper in the sample to be tested, take it out after 2 to 5 seconds, wait for the color to develop completely, and compare the color of the test paper with the standard color comparison card. For comparison, measure the concentration of glutaraldehyde in the sample. The invention provides a glutaraldehyde determination test paper with fast color development speed, obvious color scale, long shelf life, portability and safety. The glutaraldehyde content in the sample can be quickly detected on site by using the test paper, and has the advantages of fast response time, high sensitivity, good stability, simple operation, economical and practical.

Description

technical field [0001] The invention relates to the technical field of chemical analysis, in particular to a test paper for measuring glutaraldehyde and a rapid measuring method. Background technique [0002] Glutaraldehyde is an important saturated straight-chain aliphatic binary aldehyde. Its appearance is a colorless transparent oily liquid with a pungent odor. It is an efficient sterilizer and is widely used in food, microbiology industry, medical and health and other fields. The content of glutaraldehyde in use directly affects the effect of use, so the detection of glutaraldehyde is particularly important. At present, the detection of glutaraldehyde is generally divided into monitoring indicator card method, chemical method, spectrophotometric method, chromatography and other methods. The general chemical method uses acid-base titration, and the operation steps are cumbersome and time-consuming. Spectrophotometry and chromatography require some laboratory instruments...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/78
CPCG01N21/78G01N2021/7759
Inventor 黄报亮秦惠林昆仑邓金花
Owner GUANGDONG HUANKAI MICROBIAL SCI & TECH
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