CN105466926A - Novel method for detecting content of formaldehyde in plate - Google Patents
Novel method for detecting content of formaldehyde in plate Download PDFInfo
- Publication number
- CN105466926A CN105466926A CN201511011394.1A CN201511011394A CN105466926A CN 105466926 A CN105466926 A CN 105466926A CN 201511011394 A CN201511011394 A CN 201511011394A CN 105466926 A CN105466926 A CN 105466926A
- Authority
- CN
- China
- Prior art keywords
- formaldehyde
- add
- detection method
- novel method
- liquid
- 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.)
- Withdrawn
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/75—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated
- G01N21/77—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator
- G01N21/78—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator producing a change of colour
- G01N21/783—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator producing a change of colour for analysing gases
Abstract
The invention discloses a novel method for detecting content of formaldehyde in a plate. The novel method comprises the following steps: (1) extracting released substances in a detected sample piece through microwaves with water serving as an extracting solution for 4 to 8 min; (2) adding purified etidronic acid with the same volume as that of the detected sample piece into a container; (3) adding liquid formed in the step (1), and adding an equivalent amount of distilled water; (4) adding 25 microliters of formaldehyde developing agent, stewing for 15 to 20 min, and uniformly shaking once every 5 min; (5) comparing the color of the liquid in the step (4) with a standard chromatoplate by using a spectrophotometer. The method disclosed by the invention is simple, feasible, low in cost and pollution-free, is particularly suitable for self-detection of formaldehyde releasing property of a product by an enterprise, and is wide in application range; the method can be used for sampling inspection of plates and formaldehyde content detection of other products.
Description
Technical field
The present invention relates to a kind of detection method of content of formaldehyde, especially relate to a kind of detection method of board content of formaldehyde, belong to environmental monitoring field.
Background technology
At present, in CNS, in sheet material measurement, the method for burst size of methanal mainly adopts Extraction method, but perforation method cost is high, complicated operation, the drug variety of use is many, and especially toluene is poisonous, be difficult to process, easily pollute, not easily to test oneself means as manufacturer.Market also exists the equipment that certain operations method simply detects formaldehyde in air, but whether can only exceed standard to formaldehyde in air content and do observational measurement, can not artificial board formaldehyde burst size be measured, more can not do quantitative measurment.
Summary of the invention
For prior art exist deficiency, technical matters to be solved by this invention is, provides a kind of detection method of board content of formaldehyde, simple, cost is low, pollution-free.
For solving the problems of the technologies described above, the technical scheme that the present invention takes is, a kind of detection method of board content of formaldehyde, comprises the following steps:
(1) take water as extract, extracted the releaser in tested exemplar by microwave, extraction time is 4-8min;
(2) HEDP of the purifying identical with the volume of tested exemplar is added in a reservoir;
(3) add the liquid formed in step (1), add equivalent distilled water;
(4) add 25 μ l formaldehyde chromogenic reagents, leave standstill 15-20min, shake up once every 5min;
(5) adopt spectrophotometer the color of liquid in step (4) and standard colour chart plate to be contrasted and get final product judged result.
Optimize, the detection method of above-mentioned board content of formaldehyde, the formaldehyde chromogenic reagent in its step (4) is ammonium ferric sulfate.
Optimize, the detection method of above-mentioned board content of formaldehyde, the concentration of its formaldehyde chromogenic reagent is 0.035g ∕ ml.
Method simple possible of the present invention, cost are low, pollution-free, are particularly suitable for using when enterprise tests oneself to product Form aldehyde release performance; Applied widely, the present invention not only may be used for the sampling Detection of sheet material, and the content of formaldehyde that also may be used for other products detects.
Embodiment
Embodiment 1
The present invention is a kind of detection method of board content of formaldehyde, and comprise the following steps: that (1) take water as extract, extracted by microwave to the releaser in tested exemplar, extraction time is 4min;
(2) HEDP of the purifying identical with the volume of tested exemplar is added in a reservoir; (3) add the liquid formed in step (1), add equivalent distilled water;
(4) add 25 μ l formaldehyde chromogenic reagent and ammonium ferric sulfates, leave standstill 15min, shake up once every 5min;
(5) adopt spectrophotometer the color of liquid in step (4) and standard colour chart plate to be contrasted and get final product judged result.
The concentration of formaldehyde chromogenic reagent is 0.035g ∕ ml.
Embodiment 2
The present invention is a kind of detection method of board content of formaldehyde, and comprise the following steps: that (1) take water as extract, extracted by microwave to the releaser in tested exemplar, extraction time is 8min;
(2) HEDP of the purifying identical with the volume of tested exemplar is added in a reservoir;
(3) add the liquid formed in step (1), add equivalent distilled water
(4) add 25 μ l formaldehyde chromogenic reagent and ammonium ferric sulfates, leave standstill 20min, shake up once every 5min;
(5) adopt spectrophotometer the color of liquid in step (4) and standard colour chart plate to be contrasted and get final product judged result.
The concentration of formaldehyde chromogenic reagent is 0.035g ∕ ml.
Embodiment 3
The present invention is a kind of detection method of board content of formaldehyde, and comprise the following steps: that (1) take water as extract, extracted by microwave to the releaser in tested exemplar, extraction time is 6min;
(2) HEDP of the purifying identical with the volume of tested exemplar is added in a reservoir;
(3) add the liquid formed in step (1), add equivalent distilled water
(4) add 25 μ l formaldehyde chromogenic reagent and ammonium ferric sulfates, leave standstill 18min, shake up once every 5min;
(5) adopt spectrophotometer the color of liquid in step (4) and standard colour chart plate to be contrasted and get final product judged result.
The concentration of formaldehyde chromogenic reagent is 0.035g ∕ ml.Method simple possible of the present invention, cost are low, pollution-free, are particularly suitable for using when enterprise tests oneself to product Form aldehyde release performance; Applied widely, the present invention not only may be used for the sampling Detection of sheet material, and the content of formaldehyde that also may be used for other products detects.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (3)
1. a detection method for board content of formaldehyde, comprises the following steps:
(1) take water as extract, extracted the releaser in tested exemplar by microwave, extraction time is 4-8min;
(2) HEDP of the purifying identical with the volume of tested exemplar is added in a reservoir;
(3) add the liquid formed in step (1), add equivalent distilled water;
(4) add 25 μ l formaldehyde chromogenic reagents, leave standstill 15-20min, shake up once every 5min;
(5) adopt spectrophotometer the color of liquid in step (4) and standard colour chart plate to be contrasted and get final product judged result.
2. the detection method of board content of formaldehyde according to claim 1, is characterized in that: the formaldehyde chromogenic reagent in described step (4) is ammonium ferric sulfate.
3. the detection method of board content of formaldehyde according to claim 1, is characterized in that: the concentration of described formaldehyde chromogenic reagent is 0.035g ∕ ml.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511011394.1A CN105466926A (en) | 2015-12-30 | 2015-12-30 | Novel method for detecting content of formaldehyde in plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511011394.1A CN105466926A (en) | 2015-12-30 | 2015-12-30 | Novel method for detecting content of formaldehyde in plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105466926A true CN105466926A (en) | 2016-04-06 |
Family
ID=55604857
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511011394.1A Withdrawn CN105466926A (en) | 2015-12-30 | 2015-12-30 | Novel method for detecting content of formaldehyde in plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105466926A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106596534A (en) * | 2016-12-07 | 2017-04-26 | 上海朗绿建筑科技股份有限公司 | Method for detecting content of formaldehyde in sheet material |
| CN106841192A (en) * | 2017-04-18 | 2017-06-13 | 乐凯（沈阳）科技产业有限责任公司 | A kind of diazepine structure directing agent detects carbaldehyde Method and its application |
| CN108107009A (en) * | 2017-12-20 | 2018-06-01 | 贺州宝兴新材料有限公司 | The detection method of content of formaldehyde in melamine terminal plate |
-
2015
- 2015-12-30 CN CN201511011394.1A patent/CN105466926A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106596534A (en) * | 2016-12-07 | 2017-04-26 | 上海朗绿建筑科技股份有限公司 | Method for detecting content of formaldehyde in sheet material |
| CN106841192A (en) * | 2017-04-18 | 2017-06-13 | 乐凯（沈阳）科技产业有限责任公司 | A kind of diazepine structure directing agent detects carbaldehyde Method and its application |
| CN106841192B (en) * | 2017-04-18 | 2019-05-03 | 乐凯（沈阳）科技产业有限责任公司 | A kind of diazepine structure directing agent detection carbaldehyde Method and its application |
| CN108107009A (en) * | 2017-12-20 | 2018-06-01 | 贺州宝兴新材料有限公司 | The detection method of content of formaldehyde in melamine terminal plate |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105466926A (en) | Novel method for detecting content of formaldehyde in plate | |
| CN2856991Y (en) | Fast detecting test paper for borax and boric acid in foodstuff | |
| CN108132242B (en) | Preparation method and application of formaldehyde gas on-line rapid detection sensor | |
| CN104931491B (en) | A kind of 61 test paper of conjunction for heavy-metal residual quick detection | |
| CN115210557A (en) | Fentanyl analogue detection method and kit thereof | |
| CN105628699A (en) | Method for detecting formaldehyde content in boards | |
| CN106872456A (en) | Nitrite detection lateral chromatography test paper and preparation method thereof | |
| CN103487432A (en) | Lead ion detection test paper, and preparation method and use method thereof | |
| CN103293260A (en) | Method for high-efficiency detection of rhodamine B in food and rapid detection kit | |
| CN104316523A (en) | Method for rapidly detecting cadmium content in solid waste | |
| CN105466919B (en) | A kind of qualitative test paper and preparation method thereof that can quickly differentiate boric acid or borax | |
| KR100804673B1 (en) | The easy adaptable humidity, temperature indicator cards for building interior process | |
| CN104792782A (en) | Acetylcholine esterase activity detection test paper strip based on silver nanoparticles | |
| US10942126B2 (en) | Portable liquid analyzer | |
| CN115209790A (en) | Specific THC detection device | |
| CN204462025U (en) | A kind of nitrate, the dual-purpose test paper of nitrite | |
| CN105548170A (en) | Lead ion detection test paper and preparing method and using method thereof | |
| CN202204775U (en) | Pesticide residue fast detection card | |
| CN105954513A (en) | {0><}0{>Preparation and application of Flow-through film carrier qunatum dot detection morphine test paper | |
| CN106770268A (en) | Preparation method without infiltration pH test paper | |
| CN110849871A (en) | Colorimetric gel paste for rapidly detecting explosives and preparation method thereof | |
| CN105092574A (en) | Method for determining lead content in rapeseed oil | |
| TWM517818U (en) | Apparatus for detecting volatile components | |
| CN106596539A (en) | Supermolecular kit and method for quick detection of diquat | |
| CN211122546U (en) | Rapid detection kit for residual quantity of sulfur dioxide in food |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20160406 |