Nitrite detection test paper and its preparing method
A technology for detecting test paper and nitrite, which is applied in the direction of analyzing materials through chemical reactions and analyzing materials through observation of the influence of chemical indicators. It can solve the problems of expensive instruments and complicated operation methods, and achieve simple production. , low cost, overcome time-consuming and labor-intensive effects
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0017] A nitrite detection test paper, comprising a white substrate 1 with a thickness of 1.8mm and made of hard plastic, it also includes a chromogenic paper 2, the chromogenic paper 2 is an ordinary qualitative filter paper passed through 10g / LN-(1 -Naphthyl)-ethylenediamine aqueous solution is fully impregnated, dried at 30°C, drying can be carried out in a drying oven, and then fully immersed in a mixed aqueous solution of 10g / L p-aminobenzenesulfonic acid and 80g / L tartaric acid After that, it is dried in a drying oven at 30° C., and the colored paper sheet 2 is cut into 0.5×0.5 mm, and bonded on the substrate 1 .
Embodiment 2
[0019] A kind of nitrite detection test paper, comprises a thickness 1.5mm, and the white substrate 1 that material is plastics, it also comprises color developing paper 2, and color developing paper 2 is common quantitative filter paper through 25g / LN-(1-naphthalene Base)-Ethylenediamine aqueous solution is fully impregnated, dried at 40°C, drying can be carried out in a drying oven, and then immersed in a mixed aqueous solution of 30g / L p-aminobenzenesulfonic acid and 120g / L tartaric acid, Then dry in a drying oven at 40° C., cut the colored paper sheet 2 into a rectangle, and stick it on the substrate 1 .
Embodiment 3
[0021] A kind of nitrite detection test paper, comprises a white substrate 1 that is 1mm in thickness, and material is plastics, and it also comprises color developing paper 2, and color developing paper 2 is common quantitative filter paper through 20g / LN-(1-naphthyl )-Ethylenediamine aqueous solution is fully impregnated, dried at 35°C, then immersed in a mixed aqueous solution of 20g / L p-aminobenzenesulfonic acid and 100g / L tartaric acid, dried at 35°C, and the color paper The sheet 2 is cut into a size of 0.6×0.8 mm, and bonded on the substrate 1 .
[0022] After a nitrite detection test paper is made, it is sealed and stored in a dry place. It is equipped with a standard colorimetric sample strip and instructions for use. In the test sample, take it out after 5 seconds, and after 1 minute of reaction, compare the discolored test paper sheet with the standard colorimetric sample strip, and then the qualitative and quantitative detection of the nitrite content in the sample...
PUM
Property | Measurement | Unit |
---|---|---|
Thickness | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com