CN1458516A - Adsorptive resin for detecting formaldehyde content in air and its detecting method - Google Patents
Adsorptive resin for detecting formaldehyde content in air and its detecting method Download PDFInfo
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- CN1458516A CN1458516A CN 03140531 CN03140531A CN1458516A CN 1458516 A CN1458516 A CN 1458516A CN 03140531 CN03140531 CN 03140531 CN 03140531 A CN03140531 A CN 03140531A CN 1458516 A CN1458516 A CN 1458516A
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- formaldehyde
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Abstract
The adsorptive resin for detecting formaldehyde content in air consists of white adsorptive resin carrier and acetylacetone color-developing agent as color developing component attached to the carrier surface. During its preparation, various components are dissolved inside methyl alcohol in the form of inorganic salt or organic salt to compound soaking solution in certain concentration, the carrier is soaked before being dried in cold wind so that inorganic salt or organic salt is attached to the carrier. The material has the effect of adsorbing formaldehyde in air to produce yellow compound through chemical reaction. Based on the time for the yellow compound to generate, the formaldehyde content in air is judged.
Description
Technical field the present invention relates to a kind of polymeric adsorbent and detection method thereof that detects content of formaldehyde in the room air.
Background technology formaldehyde is colourless liquid, and penetrating odor is arranged.Formaldehyde pollutes and is mainly derived from industrial manufacturing resin, plastics, leather, papermaking, scale board etc.Behind the contact formaldehyde skin and mucous membrane there is the intense stimulus effect.When indoor content is 0.1mg/m
3The time, peculiar smell and sense of discomfort are just arranged; Reach 0.5mg/m
3The time, can stimulate eyes, cause and shed tears; 0.6mg/m when reaching
3The time, cause throat discomfort or pain; When concentration is higher, the vomiting that can cause nausea, uncomfortable in chest, the asthma of cough even pulmonary edema; 30mg/m when reaching
3The time, meeting is the causing death immediately.Long-term contact low dosage formaldehyde also can cause chronic respiratory disease, paramenia, causes neonatal weight reduction, chromosome abnormality even cause the rhinitis cancer.
In the detection range of formaldehyde, the method for monitoring and analyzing that carries out formaldehyde in indoor environment and the air of workplace has two classes, one class adopts absorption tube and sampling pump to gather the air sample of certain volume, analyzes with the chemical reaction colorimetric analysis or with gas chromatography then; These class methods need the professional, use professional equipment, are detecting ground through the sample collecting more than 2 hours, take back the laboratory by professional equipment, analyze.The rapid detection apparatus of another kind of employing read-only directly detects at the scene.These class methods all need certain professional equipment and professional to operate at the scene, and cost is higher.
In the research of poisonous and harmful compound method for quick, adopt specific immobile liquid is coated on certain carrier, and in the special glass tube of packing into, adopt certain instrument, gather the gas that needs detection, when the toxic and harmful with special reaction passes through this glass tube, certain chemical reaction takes place, produce change color, thereby reach the purpose of detection.This method generally is used for the supervision and check that the professional carries out, and compare with the lab analysis method to have simple, fast and easy characteristics, but the classes of compounds that can detect at present is also fewer, in the air also there is not the fast detecting pipe of formaldehyde.
The formaldehyde self check product that really can be used at present family's detection does not also have.
Summary of the invention the object of the invention is to overcome the deficiencies in the prior art part, provide a kind of detection simple, cheap, easy to use, need not use formaldehyde self check product in a kind of air of any power source and instrument, whether the air content of formaldehyde that is used for detecting room, office and workplace meets state health standards.
According to airborne formaldehyde by the absorption of the ammonium salt solution of diacetone; generate yellow 3; 5-diacetyl-1; the principle of 4-hydrogen lutidine compound; be mixed with methyl alcohol that to contain 2.5% diacetone, 4.0% acetate and 31.6% ammonium acetate mixed solution be coating fluid; 40 purpose polymeric adsorbents and coating fluid evenly are coated with according to 74% content, the methanol solvate volatilization is done, make all components be attached to carrier surface.This material has adsorption effect to airborne formaldehyde, with formaldehyde generation chemical reaction, generates yellow compound.Time according to the yellow compound generation is judged formaldehyde in indoor air content.
Formaldehyde detects resin and can sample for a long time, and it is representative strong; Simultaneously, easy to carry without any need for power supply and instrument, simple to operate, be suitable for family and use.
Stipulate in the IAQ (indoor air quality) hygienic standard that the formaldehyde in indoor air concentration limit is 0.12mg/m
3, detect resin variable color in 4 hours at 20 ℃ of formaldehyde; The concentration limit of formaldehyde is 0.08mg/m in the room
3, formaldehyde detects resin variable color in 5 hours.
Claims (3)
1. a polymeric adsorbent and detection method thereof that is used for detecting the room air content of formaldehyde, it is characterized in that, it is to make carrier with white polymeric adsorbent, with the diacetone developer serves as that the colour developing component is attached to carrier surface, the colour developing component comprises diacetone, glacial acetic acid and ammonium acetate, various components, be dissolved in the methyl alcohol with inorganic salts or organic salt, be made into certain density maceration extract, soak carrier then that cold wind dries up, make the colour developing component attached on the carrier, this material has adsorption effect to airborne formaldehyde, with formaldehyde generation chemical reaction, generate yellow compound.Time according to the yellow compound generation is judged formaldehyde in indoor air content.
2. polymeric adsorbent and the detection method thereof that is used for detecting the room air content of formaldehyde according to claim 1 is characterized in that, detects simple.This resin need only be affixed on the object that colour developing is had no effect, place indoorly, get final product.
3. polymeric adsorbent and the detection method thereof that is used for detecting the room air content of formaldehyde according to claim 1 is characterized in that, developing time is relevant with the amount and the indoor temperature of the area of pasting resin, required resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03140531 CN1458516A (en) | 2003-05-29 | 2003-05-29 | Adsorptive resin for detecting formaldehyde content in air and its detecting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03140531 CN1458516A (en) | 2003-05-29 | 2003-05-29 | Adsorptive resin for detecting formaldehyde content in air and its detecting method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1458516A true CN1458516A (en) | 2003-11-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03140531 Pending CN1458516A (en) | 2003-05-29 | 2003-05-29 | Adsorptive resin for detecting formaldehyde content in air and its detecting method |
Country Status (1)
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| CN (1) | CN1458516A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101623582B (en) * | 2009-07-30 | 2011-09-28 | 上海交通大学 | Device for indicating and removing formaldehyde |
| CN101718706B (en) * | 2009-12-07 | 2012-04-25 | 扬州大学 | Testing agent for implementing field fast detection of formaldehyde in air |
| CN103234857A (en) * | 2013-04-15 | 2013-08-07 | 王冠 | Method for testing indoor air formaldehyde content |
| CN103983635A (en) * | 2014-04-23 | 2014-08-13 | 北京安生绿源科技有限公司 | Rapid detection rod for formaldehyde and method for rapidly detecting formaldehyde |
| CN104359902A (en) * | 2014-11-13 | 2015-02-18 | 上海应用技术学院 | Formaldehyde colour-rendering test paper, and preparation method and application thereof |
| CN101571506B (en) * | 2008-04-29 | 2016-02-24 | 华瑞科学仪器(上海)有限公司 | Formaldehyde sensor |
-
2003
- 2003-05-29 CN CN 03140531 patent/CN1458516A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101571506B (en) * | 2008-04-29 | 2016-02-24 | 华瑞科学仪器(上海)有限公司 | Formaldehyde sensor |
| CN101623582B (en) * | 2009-07-30 | 2011-09-28 | 上海交通大学 | Device for indicating and removing formaldehyde |
| CN101718706B (en) * | 2009-12-07 | 2012-04-25 | 扬州大学 | Testing agent for implementing field fast detection of formaldehyde in air |
| CN103234857A (en) * | 2013-04-15 | 2013-08-07 | 王冠 | Method for testing indoor air formaldehyde content |
| CN103983635A (en) * | 2014-04-23 | 2014-08-13 | 北京安生绿源科技有限公司 | Rapid detection rod for formaldehyde and method for rapidly detecting formaldehyde |
| CN104359902A (en) * | 2014-11-13 | 2015-02-18 | 上海应用技术学院 | Formaldehyde colour-rendering test paper, and preparation method and application thereof |
| CN104359902B (en) * | 2014-11-13 | 2017-05-03 | 上海应用技术学院 | Formaldehyde colour-rendering test paper, and preparation method and application thereof |
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