CN104406964A - Formaldehyde detection reagent and preparation method thereof - Google Patents
Formaldehyde detection reagent and preparation method thereof Download PDFInfo
- Publication number
- CN104406964A CN104406964A CN201410679504.0A CN201410679504A CN104406964A CN 104406964 A CN104406964 A CN 104406964A CN 201410679504 A CN201410679504 A CN 201410679504A CN 104406964 A CN104406964 A CN 104406964A
- Authority
- CN
- China
- Prior art keywords
- parts
- reagent
- formaldehyde
- preparation
- component
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
Abstract
The invention discloses a formaldehyde detection reagent and a preparation method thereof. The formaldehyde detection reagent comprises a first reagent and a second reagent, wherein the first reagent comprises the following components in parts by weight: 50-70 parts of isocyanate, 70-75 parts of polyamine, 50-80 parts of EDTA (Ethylene Diamine Tetraacetic Acid), 30-50 parts of magnesium sulfate heptahydrate, 70-85 parts of ethylenediamine tetraacetic acid, 90-100 parts of saccharides; the second reagent comprises the following components in parts by weight: 10-15 parts of a catalyzer, 60-90 parts of hydrogen sulfate tert-butyl ester, 30-40 parts of peroxybenzoic acid, 50-65 parts of diethyl malonate, 50-70 parts of p-aminobenzenesulfonic acid, 50-75 parts of acetylsulphanilyl chloride and 40-60 parts of cyclobutanecarboxylic acid. The preparation method comprises the following steps: diluting the first reagent to 200-300 times, adding the second reagent, uniformly mixing to obtain the formaldehyde detection reagent. The formaldehyde detection reagent prepared by adopting the method has the storage time of over 90 days, compared with the prior art, the formaldehyde detection reagent is longer in storage time and long-term effective.
Description
Technical field
The present invention relates to and detect reagent field, particularly relate to a kind of formaldehyde testing reagent and preparation method thereof.
Background technology
Formaldehyde has a significant impact health.Long Term Contact low concentration formaldehyde steam, can have headache, the symptom such as weak and feeble.There is gastricism, excitement after worker exposure's formaldehyde of external report 14% ~ 16%, tremble, vision disorder.Reach in the workshop of 0.2-0.7mg/m3 at concentration of formaldehyde, the workman that works long hours have loss of appetite, lose weight, weak, headache, the phenomenon such as palpitaition and insomnia.It was reported, formaldehyde also can cause sense of touch, the pain sensation and sense of heat obstacle (hyperesthesia is the most common, is often confined to side or some local of health), and too much, health both sides skin temperature is not etc. in health side (be often right side) perspire.The ratio of Long Term Contact low concentration formaldehyde workman's eye and pharyngeal irritation and pressure in chest will be significantly higher than control group, and pulmonary function can be affected.Can be there is dizziness, headache, weak, drowsiness, anorexia, lose weight in part workman, visual impairment etc., but have not yet to see the slow poisoning case report of affirmative.Formaldehyde examination refers to by specific method or instrument, does quantitative detection to the formaldehyde that air, water, food, clothing, sheet material, leather etc. contain.
Summary of the invention
The present invention is directed to the deficiencies in the prior art, provide a kind of formaldehyde testing reagent and preparation method thereof, the formaldehyde testing reagent holding time is long.
The present invention is technical solution problem by the following technical solutions:
A kind of formaldehyde testing reagent, comprise the first reagent and the second reagent, the component of the following stated is according to parts by weight, and the first reagent comprises component: isocyanates 50 ~ 70 parts, polyamine 70 ~ 75 parts, EDTA 50 ~ 80 parts, epsom salt 30 ~ 50 parts, ethylenediamine tetraacetic acid 70 ~ 85 parts, carbohydrate 90 ~ 100 parts; Second reagent comprises component: catalyzer 10 ~ 15 parts, the hydrogen sulfate tert-butyl ester 60 ~ 90 parts, benzoyl hydroperoxide 30 ~ 40 parts, diethyl malonate 50 ~ 65 parts, sulfanilic acid 50 ~ 70 parts, ASC 50 ~ 75 parts, cyclobutyl formate 40 ~ 60 parts.
As preferably, the first reagent comprises component: isocyanates 60 parts, polyamine 72 parts, organic solvent 95 parts, EDTA65 part, epsom salt 40 parts, ethylenediamine tetraacetic acid 77 parts, carbohydrate 95 parts; Second reagent comprises component: catalyzer 12 parts, the hydrogen sulfate tert-butyl ester 75 parts, benzoyl hydroperoxide 35 parts, diethyl malonate 60 parts, sulfanilic acid 60 parts, ASC 65 parts, cyclobutyl formate 50 parts.
As preferably, the isocyanates of the first reagent is one or more in toluene diisocyanate, '-diphenylmethane diisocyanate, isophorone diisocyanate.
As preferably, the polyamine of the first reagent is diethylenetriamine or triethylene tetramine.
As preferably, the carbohydrate of the first reagent is one or more of glucose, fructose or lactose.
As preferably, the catalyzer of the second reagent is aluminum chloride, hydrogen peroxide or manganese dioxide.
The preparation method of above-mentioned formaldehyde testing reagent, comprises the following steps:
The preparation of (1) first reagent: each component mixed, is heated to 60 ~ 80 DEG C, cooling;
The preparation of (2) second reagent: each component mixed, is heated to 60 ~ 80 DEG C, cooling;
(3) by described first reagent dilutions to 200 ~ 300 times, add the second reagent, mix.
Detection method: the sample getting air to be measured, passes into sample and detects in reagent, observes solution colour change.When air formaldehyde concentration value is higher than 0.10mg/m
3time, solution becomes turquoise; When air formaldehyde concentration value is lower than 0.10mg/m
3time, solution nondiscolouring.
Beneficial effect: whether the present invention may be used for detecting formaldehyde in air content and exceed standard.And its holding time is more than 90 days, and the detection reagent of prior art can only be preserved 13 days, illustrates that the present invention can preserve the longer time, permanently effective.
Embodiment
embodiment 1
A kind of formaldehyde testing reagent, comprise the first reagent and the second reagent, the component of the following stated is according to parts by weight, and the first reagent comprises component: isocyanates 60 parts, polyamine 72 parts, organic solvent 95 parts, EDTA 65 parts, epsom salt 40 parts, ethylenediamine tetraacetic acid 77 parts, carbohydrate 95 parts; Second reagent comprises component: catalyzer 12 parts, the hydrogen sulfate tert-butyl ester 75 parts, benzoyl hydroperoxide 35 parts, diethyl malonate 60 parts, sulfanilic acid 60 parts, ASC 65 parts, cyclobutyl formate 50 parts.
The isocyanates of the first reagent is toluene diisocyanate.
The polyamine of the first reagent is diethylenetriamine.
The carbohydrate of the first reagent is glucose.
The catalyzer of the second reagent is aluminum chloride.
The preparation method of above-mentioned formaldehyde testing reagent, comprises the following steps:
The preparation of (1) first reagent: each component mixed, is heated to 70 DEG C, cooling;
The preparation of (2) second reagent: each component mixed, is heated to 70 DEG C, cooling;
(3) by described first reagent dilutions to 150 times, add the second reagent, mix.
Detection method: the sample getting air to be measured, passes into sample and detects in reagent, observes solution colour change.
embodiment 2
A kind of formaldehyde testing reagent, comprise the first reagent and the second reagent, the component of the following stated is according to parts by weight, and the first reagent comprises component: isocyanates 70 parts, polyamine 70 parts, EDTA 50 parts, epsom salt 30 parts, ethylenediamine tetraacetic acid 70 parts, carbohydrate 90 parts; Second reagent comprises component: catalyzer 10 parts, the hydrogen sulfate tert-butyl ester 60 parts, benzoyl hydroperoxide 30 parts, diethyl malonate 50 parts, sulfanilic acid 50 parts, ASC 50 parts, cyclobutyl formate 40 parts.
The isocyanates of the first reagent is '-diphenylmethane diisocyanate.
The polyamine of the first reagent is triethylene tetramine.
The carbohydrate of the first reagent is fructose.
The catalyzer of the second reagent is hydrogen peroxide.
The preparation method of above-mentioned formaldehyde testing reagent, comprises the following steps:
The preparation of (1) first reagent: each component mixed, is heated to 60 DEG C, cooling;
The preparation of (2) second reagent: each component mixed, is heated to 60 DEG C, cooling;
(3) by described first reagent dilutions to 200 times, add the second reagent, mix.
Detection method: the sample getting air to be measured, passes into sample and detects in reagent, observes solution colour change.
embodiment 3
A kind of formaldehyde testing reagent, comprise the first reagent and the second reagent, the component of the following stated is according to parts by weight, and the first reagent comprises component: isocyanates 70 parts, polyamine 75 parts, EDTA 80 parts, epsom salt 50 parts, ethylenediamine tetraacetic acid 85 parts, carbohydrate 100 parts; Second reagent comprises component: catalyzer 15 parts, the hydrogen sulfate tert-butyl ester 90 parts, benzoyl hydroperoxide 40 parts, diethyl malonate 65 parts, sulfanilic acid 70 parts, ASC 75 parts, cyclobutyl formate 60 parts.
The isocyanates of the first reagent is first isophorone diisocyanate.
The polyamine of the first reagent is diethylenetriamine.
The carbohydrate of the first reagent is lactose.
The catalyzer of the second reagent is manganese dioxide.
The preparation method of above-mentioned formaldehyde testing reagent, comprises the following steps:
The preparation of (1) first reagent: each component mixed, is heated to 80 DEG C, cooling;
The preparation of (2) second reagent: each component mixed, is heated to 80 DEG C, cooling;
(3) by described first reagent dilutions to 300 times, add the second reagent, mix.
Detection method: the sample getting air to be measured, passes into sample and detects in reagent, observes solution colour change.
comparative example 1
Whether the content adopting GB/T29121-1998 to detect formaldehyde in indoor air exceeds standard.
performance test:
Standard: national regulation Formaldehyde Concentration of Indoor Air value should lower than 0.10mg/m
3.
Sample one: content of formaldehyde is 0.24mg/m
3.
Sample two: content of formaldehyde is 0.08mg/m
3.
Holding time: place under 30 DEG C of conditions, observe that solution is muddy with or without change, whether variable color, record variable color or become the muddy time.
By the testing result record of the present invention and comparative example 1, the results are shown in following table.
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Comparative example 1 | |
| Sample one | Variable color | Variable color | Variable color | Variable color |
| Sample two | Nondiscolouring | Nondiscolouring | Nondiscolouring | Nondiscolouring |
| Holding time/sky | 95 | 93 | 90 | 13 |
Conclusion: the present invention is to the formaldehyde variable color that exceeds standard of sample one, and to the formaldehyde nondiscolouring that do not exceed standard of sample two, and whether the detection method of comparative example 1 may be used to detect formaldehyde in air content and exceed standard.But the holding time of the present invention is more than 90 days, and the detection reagent of prior art can only be preserved 13 days, illustrate that the present invention can preserve the longer time, permanently effective.
Claims (7)
1. a formaldehyde testing reagent, is characterized in that, comprises the first reagent and the second reagent, the following stated component according to parts by weight,
First reagent comprises component: isocyanates 50 ~ 70 parts, polyamine 70 ~ 75 parts, EDTA 50 ~ 80 parts, epsom salt 30 ~ 50 parts, ethylenediamine tetraacetic acid 70 ~ 85 parts, carbohydrate 90 ~ 100 parts;
Second reagent comprises component: catalyzer 10 ~ 15 parts, the hydrogen sulfate tert-butyl ester 60 ~ 90 parts, benzoyl hydroperoxide 30 ~ 40 parts, diethyl malonate 50 ~ 65 parts, sulfanilic acid 50 ~ 70 parts, ASC 50 ~ 75 parts, cyclobutyl formate 40 ~ 60 parts.
2. a kind of formaldehyde testing reagent according to claim 1, it is characterized in that, the first reagent comprises component: isocyanates 60 parts, polyamine 72 parts, organic solvent 95 parts, EDTA 65 parts, epsom salt 40 parts, ethylenediamine tetraacetic acid 77 parts, carbohydrate 95 parts; Second reagent comprises component: catalyzer 12 parts, the hydrogen sulfate tert-butyl ester 75 parts, benzoyl hydroperoxide 35 parts, diethyl malonate 60 parts, sulfanilic acid 60 parts, ASC 65 parts, cyclobutyl formate 50 parts.
3. a kind of formaldehyde testing reagent according to claim 1, is characterized in that, the carbohydrate of the first reagent is one or more of glucose, fructose or lactose.
4. a kind of formaldehyde testing reagent according to claim 1, is characterized in that, the isocyanates of the first reagent is one or more in toluene diisocyanate, '-diphenylmethane diisocyanate, isophorone diisocyanate.
5. a kind of formaldehyde testing reagent according to claim 1, is characterized in that, the polyamine of the first reagent is diethylenetriamine or triethylene tetramine.
6. a kind of formaldehyde testing reagent according to claim 1, is characterized in that, the catalyzer of the second reagent is aluminum chloride, hydrogen peroxide or manganese dioxide.
7., based on the preparation method of a kind of formaldehyde testing reagent according to claim 1, it is characterized in that, comprise the following steps:
The preparation of (1) first reagent: each component mixed, is heated to 60 ~ 80 DEG C, cooling;
The preparation of (2) second reagent: each component mixed, is heated to 60 ~ 80 DEG C, cooling;
(3) by described first reagent dilutions to 200 ~ 300 times, add the second reagent, mix.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410679504.0A CN104406964A (en) | 2014-11-24 | 2014-11-24 | Formaldehyde detection reagent and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410679504.0A CN104406964A (en) | 2014-11-24 | 2014-11-24 | Formaldehyde detection reagent and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104406964A true CN104406964A (en) | 2015-03-11 |
Family
ID=52644611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410679504.0A Pending CN104406964A (en) | 2014-11-24 | 2014-11-24 | Formaldehyde detection reagent and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104406964A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103743729A (en) * | 2013-12-23 | 2014-04-23 | 广西科技大学 | Formaldehyde detection reagent |
| CN103760152A (en) * | 2011-10-20 | 2014-04-30 | 杨晓莉 | Formaldehyde detection kit and preparation method thereof |
-
2014
- 2014-11-24 CN CN201410679504.0A patent/CN104406964A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103760152A (en) * | 2011-10-20 | 2014-04-30 | 杨晓莉 | Formaldehyde detection kit and preparation method thereof |
| CN103743729A (en) * | 2013-12-23 | 2014-04-23 | 广西科技大学 | Formaldehyde detection reagent |
Non-Patent Citations (2)
| Title |
|---|
| 张晓凤 等: "甲醛检测方法研究进展", 《重庆工学院学报(自然科学版)》 * |
| 张淑霞 等: "甲醛检测方法研究进展", 《农业机械》 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107841071A (en) | A kind of PVC decorative Film | |
| CN104406964A (en) | Formaldehyde detection reagent and preparation method thereof | |
| Deniz | Color removal from aqueous solutions of metal-containing dye using pine cone | |
| CN103173600A (en) | M56*3 high-strength bolt production method | |
| 황순택 et al. | Standardization study of the Korean vineland adaptive behavior scales-Ⅱ (K-vineland-II) | |
| CN110116444B (en) | Anti-corrosion modification treatment agent for cedar, preparation method and construction process thereof | |
| Gao et al. | Characterisation of malolactic conversion by Oenococcus oeni to reduce the acidity of apple juice | |
| CN104530811A (en) | Aluminum profile red powder coating even reinforcing agent and preparation method thereof | |
| Gai-ling et al. | Effect of long-term fertilization and straw mulch on the contents of labile organic matter and carbon management index | |
| CN109453768A (en) | A kind of palladium simple substance shell catalyzing deoxidation agent and preparation method thereof | |
| CN108184821A (en) | A kind of pretreatment liquid that can retain camellia Fresh Cutting flower natural primary color and its application | |
| CN110228114B (en) | Anticorrosion modification treatment method for Chinese fir | |
| CN105780497A (en) | A printing and dyeing method for wool-containing fabric | |
| CN105862435A (en) | Processing method of hydrophobic washable down | |
| CN112661921A (en) | Novel antibacterial agent, preparation method and application | |
| CN105092672B (en) | Benzene sensor film electrode and preparation method thereof | |
| Torkan et al. | Psychometrical properties of the Index of Marital Satisfaction (IMS). | |
| Perner et al. | Histopathologische Diagnostik der Prostatastanzbiopsie | |
| CN106755281A (en) | A kind of liquid NAG calibration solutions and preparation method thereof | |
| Galan | CHECKING THE EFFECTIVENESS OF THE SPORTS ORIENTEERING PROGRAMME BY INDICATORS OF PHYSICAL PREPARATION AND COGNITIVE FUNCTIONS OF 5-6 GRADES PUPILS | |
| Lail et al. | Effects of Sodium Phosphate and Urea on Chlorophyll Content of Lake Water across Oklahoma | |
| de Oliveira Rosas et al. | Preparation of reference material for proficiency test for enumeration of coliforms in cheese matrix | |
| Van Saen | Gene expression during testicular development | |
| Navaratne | Determination of the Effectiveness of Hal Bark (Vateria copallifera) as a Natural Preservative for Food Security of Confectionery Industry | |
| MENZEL | Livable Smart City or Megacity Best Avoided?——Beijing's Vision for a New Greater Capital Zone |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination |