Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Manganese-containing formaldehyde detection reagent and preparation method thereof

A technology for detecting reagents and reagents, which is applied in the field of manganese-containing formaldehyde detection reagents and its preparation, can solve the problems of low sensitivity and slow response, and achieve high detection efficiency

Inactive Publication Date: 2015-03-11
DONGCHEN LEADER TESTING
View PDF0 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The biggest advantage of this method is easy operation, stable performance, small error, no interference from acetaldehyde, and the colored solution can exist stably for 12 hours; the disadvantage is that the sensitivity is low, and the minimum detection concentration is 0.25mg / L, which is only suitable for higher Determination of formaldehyde concentration; the reaction is slow and takes about 60 minutes

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The manganese-containing formaldehyde detection reagent includes a first reagent and a second reagent, and the components described below are by weight,

[0026] The first reagent includes components: 50 parts of sulfonamide benzoic acid, 60 parts of isocyanate, 95 parts of organic solvent, 30 parts of amino acid chelated manganese, 15 parts of potassium dihydrogen phosphate, and 75 parts of p-bromobenzoic acid;

[0027] The second reagent includes components: 35 parts of primary arylamine, 50 parts of cyclic carboxylic acid, 100 parts of inorganic salt, 35 parts of succinic acid, 25 parts of superphosphate and 90 parts of pyridine derivative.

[0028] The isocyanate of the first reagent is toluene diisocyanate.

[0029] The organic solvent of the first reagent is acetone.

[0030] The inorganic salt of the second reagent is sodium carbonate.

[0031] The pyridine derivative of the second reagent is 3-pyridinesulfonic acid.

[0032] The cyclic car...

Embodiment 2

[0039] The manganese-containing formaldehyde detection reagent includes a first reagent and a second reagent, and the components described below are by weight,

[0040] The first reagent includes components: 40 parts of sulfonamide benzoic acid, 50 parts of isocyanate, 90 parts of organic solvent, 20 parts of amino acid chelated manganese, 10 parts of potassium dihydrogen phosphate, and 60 parts of p-bromobenzoic acid;

[0041] The second reagent includes components: 30 parts of primary arylamine, 40 parts of cyclic carboxylic acid, 80 parts of inorganic salt, 20 parts of succinic acid, 20 parts of superphosphate and 80 parts of pyridine derivative.

[0042] The isocyanate of the first reagent is diphenylmethane diisocyanate.

[0043] The organic solvent of the first reagent is butanone.

[0044] The inorganic salt of the second reagent is potassium nitrate.

[0045] The pyridine derivative of the second reagent is hexahydropyridine.

[0046] The cyclic ...

Embodiment 3

[0053] The manganese-containing formaldehyde detection reagent includes a first reagent and a second reagent, and the components described below are by weight,

[0054] The first reagent includes components: 60 parts of sulfonamide benzoic acid, 70 parts of isocyanate, 100 parts of organic solvent, 40 parts of amino acid chelated manganese, 20 parts of potassium dihydrogen phosphate, and 90 parts of p-bromobenzoic acid;

[0055] The second reagent includes components: 40 parts of primary arylamine, 60 parts of cyclic carboxylic acid, 120 parts of inorganic salt, 50 parts of succinic acid, 30 parts of superphosphate, and 100 parts of pyridine derivative.

[0056] The isocyanate of the first reagent is isophorone diisocyanate.

[0057] The organic solvent of the first reagent is N-methylpyrrolidone.

[0058] The inorganic salt of the second reagent is calcium carbonate.

[0059] The pyridine derivative of the second reagent is hexahydropyridine.

[0060] T...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a manganese-containing formaldehyde detection reagent and a preparation method thereof. The manganese-containing formaldehyde detection reagent comprises a first reagent and a second reagent, wherein the first reagent comprises the components in parts by weight: 40-60 parts of sulfamide benzoic acid, 50-70 parts of isocyanate, 90-100 parts of an organic solvent, 20-40 parts of amino acid chelate manganese, 10-20 parts of monopotassium phosphate and 60-90 parts of parabromobenzoic acid; the second reagent comprises the components in parts by weight: 30-40 parts of primary arylamine, 40-60 parts of cyclic carboxylic acid, 80-120 parts of inorganic salt, 20-50 parts of succinic acid, 20-30 parts of superphosphate and 80-100 parts of a pyridine derivative. The preparation method comprises the steps: diluting the first reagent by 90-100 times, adding the second reagent, and uniformly mixing the reagents. The detection reagent disclosed by the invention can be used for quickly detecting whether the formaldehyde content is overproof, and the operation is carried out by only 49-54 seconds; compared with the prior art, the manganese-containing formaldehyde detection reagent disclosed by the invention is higher in detection efficiency.

Description

[0001] technical field [0002] The invention relates to the field of detection reagents, in particular to a manganese-containing formaldehyde detection reagent and a preparation method thereof. [0003] Background technique [0004] Formaldehyde detection refers to the quantitative detection of formaldehyde contained in air, water, food, clothing, boards, leather, etc. through specific methods or instruments. The principle of the acetylacetone method is to use formaldehyde, acetylacetone and ammonia to generate a yellow compound diacetyl dihydrolutidine, and then perform spectrophotometric determination at 412nm. The biggest advantage of this method is easy operation, stable performance, small error, no interference from acetaldehyde, and the colored solution can exist stably for 12 hours; the disadvantage is that the sensitivity is low, and the minimum detection concentration is 0.25mg / L, which is only suitable for higher Determination of formaldehyde concentration; the...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): G01N21/78
Inventor 熊开胜张海防谢建庭
Owner DONGCHEN LEADER TESTING
Features
  • Generate Ideas
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com