CN202486057U - Test paper for fast formaldehyde detection - Google Patents
Test paper for fast formaldehyde detection Download PDFInfo
- Publication number
- CN202486057U CN202486057U CN201120556318XU CN201120556318U CN202486057U CN 202486057 U CN202486057 U CN 202486057U CN 201120556318X U CN201120556318X U CN 201120556318XU CN 201120556318 U CN201120556318 U CN 201120556318U CN 202486057 U CN202486057 U CN 202486057U
- Authority
- CN
- China
- Prior art keywords
- test paper
- formaldehyde
- pad
- support plate
- fast
- 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.)
- Expired - Lifetime
Links
Images
Landscapes
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
- Investigating Or Analysing Materials By The Use Of Chemical Reactions (AREA)
Abstract
The utility model discloses a piece of test paper for fast formaldehyde detection. The test paper for the fast formaldehyde detection comprises a first support plate (1), a second support plate (2), a test window (3), the test paper (4), a top cap (5) and colorimetric cards. The first support plate (1) is provided with a protruding portion, the second support plate (2) is provided with a concave portion, and the first support plate (1) is connected with the second support plate (2) in a matching mode through the protruding portion and the concave portion. An inner space formed by the matching connection is used to contain the test paper (4), the test window (3) is arranged on the second support plate (2), and the top cap (5) is inserted at one end of the test paper (4). The test paper for the fast formaldehyde detection can be used for the detection of the formaldehyde in medium such as air, food and beverages, and has the advantages of being fast, sensitive, convenient to operate and low in cost, and needing no professionals for the detection.
Description
Technical field
The utility model relates to a kind of quick formaldehyde and detects test paper; Can be used for on-the-spot half-quantitative detection concentration of formaldehyde; This test paper is content of formaldehyde in detected gas, the liquid simultaneously; Can be used for medium formaldehyde such as air, food, drink detection, have quick, sensitive, easy and simple to handle, cost is low, need not the advantage that the professional detects.
Background technology
Formaldehyde has the intense stimulus effect to skin and mucous membrane, and the formaldehyde of high concentration is all toxic to nervous system, immune system, liver etc.Long-term low dose contact formaldehyde will reduce the immunity of organism level, causes neurasthenia, symptoms such as drowsiness, failure of memory occur.Formaldehyde has become the main factor of room air pollution at present, enjoys public attention in recent years.
Fast detecting formaldehyde pollutes for control formaldehyde, and the protection people are healthy, have good social effect.The conventional method complicated steps, the cost that accurately detect content of formaldehyde in the air are high, can not adapt to common people's demand.The method that present semiquantitative formaldehyde detects is more existing reports in some patent documentations.
In the sxemiquantitative fast detecting formaldehyde report; The employing Liquid Absorption liquid form that has; Employing prod that has or test paper form; But its test philosophy all is to adopt the AHMT colourimetry, all exists shortcomings such as color range is not obvious, reagent is unstable, sxemiquantitative weak effect during use, is difficult to develop real effectively product.
What at present formed product on the market mainly is---the formaldehyde box of testing oneself, and it is to adopt liquid-absorbant, adopts 3-methyl-2-[4-morpholinodithio quinoline ketone hydrazone hydrochloride hydrate (being called for short MBTH); Though color range is obvious, sxemiquantitative is effective, all need prepare absorption liquid, add the developer initiating agent behind the absorption formaldehyde; Leave standstill colour developing, carry out colorimetric reading, complex operation again; Consuming time longer, generally need (30～35) min, use inconvenience.
The utility model content
This novel purpose provides a kind of quick concentration of formaldehyde test paper, and this test paper need not the user and carries out the loaded down with trivial details operations of specialty again such as solubilising reagent, dropping liquid, has solved the complex operation of present formaldehyde testing product, long deficiency consuming time.
Quick concentration of formaldehyde test paper; Comprise first back up pad (1), second back up pad (2), testing window (3), test paper (4) and top cover (5) and colorimetric card, have the protrusion position on first back up pad (1), have the depression position on second back up pad (2); Utilize this protrusion position and depression position first back up pad (1), second back up pad (2) to be connected; Inner space after being connected is used to hold test paper (4), and second back up pad (2) is provided with testing window (3), and top cover (5) is inserted in an end of test paper (4).
The formaldehyde chromogenic reagent of the utility model is a phloroglucin, and phloroglucin is become 0.5%～3% solution with dissolve with ethanol, and optimum range is 1%～1.5%, sprays uniformly or is immersed on the test paper.Load formaldehyde chromogenic reagent the hygrometric state test paper through snap fit on back up pad, cover top cover, be sealed in the aluminium foil bag.
During use Aluminium Foil Package pack is torn, take out test paper, be exposed to (1～2) min in the environment of concentration of formaldehyde to be determined, can relatively confirm concentration of formaldehyde with colorimetric card, easy to use, quick.Colorimetric card is placed separately for detecting supporting part.
During test, if there is not formaldehyde in environment, then test paper nondiscolouring; If have formaldehyde in the environment, then test paper is with the difference of concentration of formaldehyde, and to orange red a series of change in color, concentration of formaldehyde and colour code are corresponding one by one on the colorimetric card by pale red in appearance.
The utility model can be formed a cover product by a plurality of independent packaging formaldehyde detection test paper, and each formaldehyde detects test paper can test the concentration of formaldehyde of a point, thus the environment that the multiple spot of satisfying the demand detects, and this utility model is used very flexible, convenient.
The beneficial effect that this is novel:
1, developing time is short, observes change color in (1～2) min, can confirm concentration of formaldehyde;
2, multiple spot detection, user's easy row convenient and simple for operation;
3, cost of manufacture is lower, and is cheap;
4, be easy to suitability for industrialized production.
Description of drawings
The exploded view of Fig. 1 test paper.
Fig. 2 test paper overall diagram.
1, first back up pad; 2, second back up pad; 3, testing window; 4, test paper; 5, top cover.
Embodiment
Below in conjunction with specific embodiment, the utility model is elaborated.
With reference to figure 1, fast formaldehyde detects test paper and comprises first back up pad 1, second back up pad 2, testing window 3, test paper 4, top cover 5 and colorimetric card, has the protrusion position on first back up pad 1; Have the depression position on second back up pad 2; Utilize this protrusion position and depression position first back up pad 1, second back up pad 2 to be connected, the inner space after being connected is used to hold test paper 4, the second back up pads 2 and is provided with testing window 3; Top cover 5 is inserted in an end of test paper 4, prevents to pollute test paper 4.
Phloroglucin is become 1% solution with dissolve with ethanol, be sprayed at uniformly on the rectangular test paper, the hygrometric state test paper is passed through the last snap fit of back up pad (1)-B on back up pad, cover top cover, be sealed in the aluminium foil bag, promptly process test paper 4.
During use test card is taken out in sealing bag, be exposed in the environment of concentration of formaldehyde to be tested, place or shake gently to increase and the contacting of air, (1～2) min observations is compared with colorimetric card, confirms concentration of formaldehyde.
When perhaps using test card is taken out in sealing bag, drip 2～3 liquid to be measured to testing window 3, (1～2) min observations is confirmed concentration of formaldehyde with the colorimetric card comparison.
Should be understood that, concerning those of ordinary skills, can improve or conversion, and all these improvement and conversion all should belong to the protection domain of the utility model accompanying claims according to above-mentioned explanation.
Claims (1)
1. a quick formaldehyde detects test paper; It is characterized in that, comprise first back up pad (1), second back up pad (2), testing window (3), test paper (4) and top cover (5) and colorimetric card, have the protrusion position on first back up pad (1); Have the depression position on second back up pad (2); Utilize and should protrude position and depression position, said first back up pad (1), said second back up pad (2) are connected, and the inner space after being connected is used to hold test paper (4); Second back up pad (2) is provided with testing window (3), and top cover (5) is inserted in an end of test paper (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120556318XU CN202486057U (en) | 2011-12-28 | 2011-12-28 | Test paper for fast formaldehyde detection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120556318XU CN202486057U (en) | 2011-12-28 | 2011-12-28 | Test paper for fast formaldehyde detection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202486057U true CN202486057U (en) | 2012-10-10 |
Family
ID=46960472
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120556318XU Expired - Lifetime CN202486057U (en) | 2011-12-28 | 2011-12-28 | Test paper for fast formaldehyde detection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202486057U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103454272A (en) * | 2013-09-13 | 2013-12-18 | 李欣 | Test paper for rapidly judging rice freshness and application of test paper |
| CN107741420A (en) * | 2017-10-16 | 2018-02-27 | 祁忆青 | A kind of device and method for preparing test paper of Rapid Detection of Formaldehyde burst size |
-
2011
- 2011-12-28 CN CN201120556318XU patent/CN202486057U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103454272A (en) * | 2013-09-13 | 2013-12-18 | 李欣 | Test paper for rapidly judging rice freshness and application of test paper |
| CN103454272B (en) * | 2013-09-13 | 2015-11-18 | 李欣 | A kind of test paper of quick judgement rice new-old degree and application thereof |
| CN107741420A (en) * | 2017-10-16 | 2018-02-27 | 祁忆青 | A kind of device and method for preparing test paper of Rapid Detection of Formaldehyde burst size |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202994757U (en) | Portable detector for indoor air quality | |
| CN205809074U (en) | A kind of detection bucket for laying reagent paper plug-in card | |
| CN202486057U (en) | Test paper for fast formaldehyde detection | |
| CN203037655U (en) | Rapid detection card for carbendazim | |
| CN103792196A (en) | Application method of blood glucose analysis system based on APP technology | |
| CN102156179A (en) | Quick detecting method of illegal cooking oil | |
| CN204255847U (en) | Instrument for detecting pesticide residue through | |
| CN204807555U (en) | Miniature low -power consumption alcohol concentration detection device based on android system | |
| CN202756921U (en) | Flashlight having electric quantity display function | |
| CN104111253A (en) | Preparation method of 4-hydroxybutyric acid test paper resisting interference of ascorbic acid and pigments | |
| CN102012426A (en) | Rapid test card of glibenclamide and test method of glibenclamide | |
| CN205102855U (en) | Dangerization article warehouse automatic alarm system | |
| CN207527669U (en) | A kind of range hood with air quality sensor | |
| CN102297965A (en) | Rapid test card of forchlorfenuron and test method thereof | |
| CN201868039U (en) | Display capable of detecting indoor air quality | |
| CN209327321U (en) | A kind of modified pen type food-safety detecting instrument | |
| CN204480432U (en) | Intelligent radio alarm control unit | |
| CN202230026U (en) | Test paper for formaldehyde detection | |
| CN206412061U (en) | A kind of interactive release platform of intelligent advertisement | |
| CN202494659U (en) | Alcohol concentration detector | |
| CN208044796U (en) | A kind of intelligence community indoor smog detection alarm system Internet-based | |
| CN206649642U (en) | Use the equipment of broad spectrum type sensor identification methane gas | |
| CN202403306U (en) | Electronic combustible gas leakage automatic detection and protection device | |
| CN206697014U (en) | A kind of household fuel gas detection and warning system based on 51 single-chip microcomputers | |
| CN205267714U (en) | Cup with sugar content and temperature detection function |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121010 |
|
| CX01 | Expiry of patent term |