Quick determination reagent bottle for formaldehyde in the air

A reagent bottle and formaldehyde 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, can solve the problems of complicated measurement steps, high measurement costs, and difficulty in popularization, and achieve The effect of reducing secondary pollution, simple structure and low price

Inactive Publication Date: 2006-10-04
SHANGHAI JIAO TONG UNIV
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Problems solved by technology

However, the determination steps are complicated, professional personnel are required to operate, and the determination cost is high, so it is not easy to popularize

Method used

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  • Quick determination reagent bottle for formaldehyde in the air
  • Quick determination reagent bottle for formaldehyde in the air

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Embodiment Construction

[0015] The technical solutions of the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0016] Formaldehyde quick determination reagent bottle structure in the air of the present invention and use state are as follows figure 1 As shown, the reagent bottle includes a reagent bottle 3 containing a color developer 4 , an aeration tube 5 with a microporous sand core 6 at the bottom, and a syringe 7 .

[0017] Formaldehyde rapid determination reagent bottle 3 is made of colorless transparent plastic, and the color developer in the bottle is made of 4-amino-3-hydrazine-5-thiol-1,2,4-triazole (AHMT) solution, hydrogenated Potassium (KOH) solution and potassium periodate (KIO 4 ) solution, and the ionic strength is adjusted by an electrolyte with an ionic strength of 0.3M.

[0018] The specific preparation method of developer 4 is as follows: respectively prepare a 1% AHMT solution in a weight ratio,...

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Abstract

The invention is a reagent bottle for rapid determination of oxymethylene in the air, which comprises reagent bottle, oxymethylene detecting pharmaceuticals loaded in bottle, air injector and aeration pipe. When using it, one can open the reagent bottle and slip in aeration pipe to the end and aerate the pipe through air injector. By comparing the color of color reagent in reagent bottle with that of attached color matching card, we can determine the density of oxymethylene in the air to be measured. The said invention is characterized by simple use, safe process, accurate result and low price and simple handling of used reagent bottle not to pollute the environment again.

Description

technical field [0001] The invention relates to a reagent bottle for measuring formaldehyde in air, which is used for one-time semi-quantitative on-site analysis and determination of formaldehyde concentration in indoor air and formaldehyde volatilized near new furniture and decoration materials. It is a new product for on-site analysis and testing. Background technique [0002] Formaldehyde (HCHO) is also known as wood aldehyde or acetaldehyde, and 40% formaldehyde solution is called formalin solution and is widely used as a preservative. Formaldehyde is widely used in the chemical industry, and the products synthesized from it are widely used in households, such as latex paint in furniture, flame retardant in flooring, various boards in building materials, preservatives, paints, disinfection products, etc. However, if excessive use causes the formaldehyde content in the air to exceed the standard, it will cause serious harm to health. [0003] Conventional methods for me...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/78
Inventor 杨骥贾金平王亚林
Owner SHANGHAI JIAO TONG UNIV
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