CN2577278Y - Disposable colorimetric quick test package of methanal in air - Google Patents
Disposable colorimetric quick test package of methanal in air Download PDFInfo
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- CN2577278Y CN2577278Y CN 02285930 CN02285930U CN2577278Y CN 2577278 Y CN2577278 Y CN 2577278Y CN 02285930 CN02285930 CN 02285930 CN 02285930 U CN02285930 U CN 02285930U CN 2577278 Y CN2577278 Y CN 2577278Y
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- colorimetric
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- formaldehyde
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Abstract
The utility model discloses a disposable colorimetric quick test package of formaldehyde in the air, which comprises an outer package, a sample absorptive processing bottle which is sealed in the outer package, a reagent tube which is sealed in the outer package and a colorimetric tube which is sealed in the outer package, and besides, the utility model also comprises a colorimetric card. The quick test package respectively uses the known acetylacetone or phenol reagent or AHMT reagent as a color-developing agent; tested samples and the color-developing agent react through different sampling methods to generate colors in a plastic drip tube; the colors are compared with standard colors. The utility model can test the formaldehyde in the air, in liquid and in a solid semi-quantitatively. The utility model has the advantages of sensitive methods, accurate methods and convenient operation; the utility model is suitable for the quick test on site. The whole test process is all completed in the plastic tube; the using quantities of samples and the reagent are less, besides, the adopted reagent can be recovered by the plastic pipe; secondary pollution is prevented and reduced.
Description
Technical field:
The utility model relates to on-the site analysis and detects articles for use, is specifically related to the new product of content of formaldehyde in a kind of disposable half-quantitative detection room air, furniture and the decorating and renovating material.
Background technology:
Formaldehyde (HCHO) is commonly called as formaldehyde, wooden aldehyde, and we are the most familiar is the formalin that its 40% aqueous solution promptly often is used to do antiseptic.
Formaldehyde is of many uses.All to use formaldehyde in synthetic resin, surfactant, plastics, rubber, tanning, papermaking, dyestuff, pharmacy, agricultural chemicals, photographic film, explosive, building materials and sterilization, the stifling and anticorrosion process, we can say that formaldehyde is a many-side people in the chemical industry.Yet have too much of a good thing, surmount boundary, bring endless trouble in case use.The medical expert introduces, and content of formaldehyde exceeds standard in the air becomes one of inducement of breathing problem, blood disease, intestines problem and pregnant woman's miscarriage, and directly has a finger in every pie food service industry, more makes formaldehyde become our hard to guard against healthy killer.
Formaldehyde is a kind of colourless easily molten irritative gas, and formaldehyde gas can absorb through respiratory tract, and its aqueous solution " formalin " can absorb through alimentary canal.Modern scientific research shows, when indoor content is 0.1mg/m
3The time peculiar smell and sense of discomfort just arranged; 0.5mg/m
3Can stimulate eyes to cause sheds tears; 0.6mg/m
3Shi Yinqi throat discomfort or pain; Concentration is high again to cause nausea, vomit, cough, uncomfortable in chest, asthma even pulmonary emphysema; In air, reach 30mg/m
3The time can cause death at once.Long-term contact low dosage formaldehyde is (as 0.02mg/m
3) can cause chronic respiratory disease, women's paramenia, pregnancy syndrome, cause the reduction of neonate's physique, chromosome abnormality even cause nasopharyngeal carcinoma.The formaldehyde of high concentration is (as 0.1mg/m
3More than) all toxic to nervous system, immune system, liver etc.But it also exciting eye conjunctiva, respiratory mucosa and producing shed tears, runny nose, the conjunctivitis that causes, sphagitis, asthma, bronchitis and allergic disease.Formaldehyde also has teratogenesis, carcinogenesis.According to epidemiology survey, contact the people of formaldehyde for a long time, can cause nasal cavity, oral cavity, nasopharynx, throat, skin and gastral cancer.
The main source of formaldehyde has the following aspects:
1, is used as the artificial boards such as scale board, core-board, medium density fibre board (MDF) and particieboard of interior decoration.Because formaldehyde has stronger adhesion, also have the sheet material hardness of reinforcement and insect protected, anti-corrosion function, so produce at present tackifier that wood-based plate uses with formaldehyde as the formaldehyde that has neither part nor lot in reaction residual in the Lauxite of principal ingredient, the sheet material towards periphery environment discharge, be the main body that forms formaldehyde in indoor air.
2, the furniture made from wood-based plate.Some producers use underproof sheet material for profit-push, cause formaldehyde to exceed standard.
3, the other kinds ornament materials that contains the formaldehyde composition and might distribute to the external world is as adherent cloth, wallpaper, chemical fibre carpet, polyfoam, paint, coating and articles for washing etc.
The method of measuring formaldehyde has a series of sensitivities such as chemical analysis and instrumental method, method accurately, but they mostly are unsuitable for as portable, the on-the-spot formaldehyde that detects.The food poisoning and the air pollution occurrence that cause along with food hygiene and decorations constantly take place, people press for a kind of home-use, low price, accurately, the assay determination means of formaldehyde in the fast detecting air, up to now, Shang Weijian both can measure gas, and the disposable formaldehyde speed that can measure liquid and solid is again surveyed the relevant report of bag.
The utility model content:
The purpose of this utility model is to provide the disposable colorimetric speed of formaldehyde in a kind of low price, sensitivity, detected gas, liquid and the solid accurate, quick, simple and easy to use to survey bag.
For achieving the above object, take following technical scheme:
The utility model is that a kind of disposable formaldehyde colorimetric speed is surveyed bag, it is characterized in that, it comprises an external packing and is encapsulated in the interior absorption of sample of described external packing handles bottle, and reagent pipe, and color comparison tube also comprise colorimetric card.
Above-mentioned disposable colorimetric speed is surveyed bag, and it is with cover that described absorption of sample is handled bottle, in the bottle medicament is housed.
Above-mentioned disposable colorimetric speed is surveyed bag, encapsulation reagent in the described reagent pipe, thin mouthful end closure.
Above-mentioned disposable colorimetric speed is surveyed bag, and described color comparison tube is the suction pipe shape, and the bottom is thicker, is cylindric, and top is thin slightly, is tubulose, the tubule port sealing; Be packaged with developer in the described color comparison tube.
Above-mentioned disposable colorimetric speed is surveyed bag, and described colorimetric card colorimetric color range is attached in the external packing.
According to technique scheme, the utility model has the advantages that: ● the apparatus of doing the one-time detection analysis all concentrates in the external packing, does not need complicated instrument and equipment, can finish detection, and is very easy to use.● can on-the-spot semiquantitative determination gas, formaldehyde in liquid and the solid sample, can directly on formaldehyde colorimetric card colorimetric color range, read the result of detection.● sampling, chemical reaction, colour developing is all finished in transparent or semitransparent plastic tube, and not only sample and reagent dosage are few, and the reagent after using can reclaim with the plastic tube sealing, prevent and have reduced secondary pollution.● detection speed is fast, measures a sample and only needs 3～10 minutes.
Description of drawings:
Fig. 1 handles the structural representation of bottle for the utility model absorption of sample.
Fig. 2 is the structural representation of the utility model reagent pipe.
Fig. 3 is the utility model color comparison tube structural representation.
Fig. 4 is the utility model colorimetric card design diagram.
Embodiment:
The utility model principle is based on formaldehyde and developer reaction generation colored compound in the sample, the visual colorimetric analysis method that this compound is set up the selective absorption of visible light.
The basic skills that PARA FORMALDEHYDE PRILLS(91,95) detects has diacetone reagent colourimetry, phenol reagent colourimetry and AHMT (4-amino-3 nitrogen-5-sulfydryl-1,2,4-triazole) reagent colourimetry.Diacetone reagent colourimetry is in the presence of acetic acid-ammonium acetate buffer solution, and formaldehyde and diacetone effect generate yellow compound; The phenol reagent colourimetry is based on formaldehyde and piperazine is produced in phenol reagent (3-formaldehyde-2 benzothiazole hydrochloride) reaction, in the presence of oxygenant potassium metaperiodate or ammonium ferric sulfate, generates blue and bluish violet compound.And AHMT reagent colourimetry is based on formaldehyde and the condensation in alkaline medium of AHMT reagent, generates bluish violet and aubergine compound through potassium metaperiodate or ammonium persulfate oxidation then.
Fig. 1 to Fig. 4, shown that the utility model needs all apparatus of using in detection, they are: the absorption of sample shown in Fig. 1 is handled bottle 1, reagent pipe 2 shown in Fig. 2, colorimetric card 4 shown in color comparison tube 3 shown in Fig. 3 and Fig. 4, all these apparatus concentrate on (not expression among the figure) in the external packing, just are combined into the utility model.Above-mentioned apparatus can be made with any materials, but most economical be to use plastics; External packing can be material and the form that is fit to arbitrarily, and as bag, box or case or the like, the utility model is not done special restriction; The arrangement of above-mentioned apparatus in external packing is arbitrarily, both can fix one by one, also can pile up, or bulk storage, the utility model is not done special restriction yet.
By shown in Figure 1, absorption of sample is handled bottle 1 for gathering and handle the place of sample, and on structure, it be wealthy mouthful that absorption of sample is handled bottle 1, comprises a flat thick shape bottle 11 and a supporting bottle cap 12, and bottle cap 12 and bottle 11 seal when covering.Absorption of sample is handled bottle 1 from not limiting in shape, can be for column, for example can be diameter 20～60mm, the plastic bottle of high 10～60mm or vial; Also can get other shape,, conveniently decide according to drawing materials as circle tripe shape, vase-like, ellipticity, cubic shape, six side's shapes or the like.In absorption of sample is handled bottle 1, contain medicament 13.Absorption of sample is handled the reagent 13 that diacetone, phenol reagent and three kinds of distinct methods of AHMT are housed respectively in the bottle 1.
Sealing has contained reagent 21 in the reagent pipe 2 shown in Fig. 2, and reagent pipe 2 can be made arbitrary shape with plastic material, and it seals 22 in the reagent 21 back sealings of packing into, seals 22 contiguous places, can establish a mark line 23, with the convenient reagent pipe 2 of opening.Reagent pipe 2 can be made with other material equally, but demanding party just seals and opens.Specifically in an embodiment, reagent pipe 2 can be the transparent or semitransparent plastic dropper of 0.5～10ml, the reagent 21 of diacetone, phenol reagent and three kinds of distinct methods of AHMT is housed, respectively behind the reagent 21 of packing into, with the liquid droping port heated sealant, cut off with scissors during use and just can.
4 of colorimetric cards shown in Fig. 4 demonstrate the standard coloration color range above as a card, and indicate the numerical value of variable concentrations formaldehyde with change color.The shape and the size of the color range on card itself and the card are not particularly limited, and the quantity of color range also can be for one or more on the card, each above the color range or below indicate the concentration value (mg/m of formaldehyde in the air
3) arrangement design of color lump also can be varied on the card.Adopt different color mechanisms, the color of colorimetric card 4 and color range can be different, need be supporting with the developer that added in reagent in the reagent pipe 2 and the chromoscope 3.Colorimetric card 4 can be provided with separately, also the color range of colorimetric card directly can be printed in the external packing.
Utilize the utility model on-site measurement formaldehyde example, this example adopts the phenol reagent colourimetry.
Preparation and making that colorimetric speed is surveyed bag: after absorption of sample is handled the solid mixture of pack in the bottle 1 50mg sodium sulphate, 50mg glazier's salt, 400mg disodium ethylene diamine tetraacetate, 50mg phenol reagent, seal, the 5ml that packs in reagent pipe 2 contains to heat after the aqueous solution of 0.2% ethylenediamine or the aqueous solution that 5ml contains 0.1g ammonium acetate and 0.1ml glacial acetic acid and seals, and the 0.5ml that packs in color comparison tube 3 contains 0.25% ferric ammonium sulfate or 0.5ml and contains to heat after the 0.2% potassium metaperiodate aqueous solution and seal.Formaldehyde determination step in room air, furniture and the decorating and renovating material:
Open absorption of sample and handle the lid 12 of bottle 1, that cuts off reagent pipe 2 seals 22, reagent is splashed into absorption of sample to be handled in the bottle 1, cover tight loam cake 12, fluctuated for 10 seconds, open absorption of sample and handle bottle 1 loam cake 12, bottle 11 was put into room to be measured, furniture or decorating and renovating material after 0.5～8 hour, take out; Cut off colorimetric bottle 3 tips then and seal 33, reagent 34 in the color comparison tube 3 is splashed into absorption of sample to be handled in the bottle 1, shake three times after covering tight loam cake 12, clutch color comparison tube 3 bottoms 31 then and discharge air, after automatic draw solution in the color comparison tube 3 insertion absorption of sample processing bottles 1, at room temperature place and (or grasped color comparison tube 3 bottoms 31 in 10～15 minutes, by body temperature heating 3～5 minutes), solution colour is by the colourless blueness that becomes in the color comparison tube 3, compare with color range on the colorimetric card 4, read the concentration value (mg/m of formaldehyde in the sample
3).
With diacetone colourimetry and AHMT colourimetry, identical with above-mentioned example assay method, just according to different color mechanisms, it is different that absorption of sample is handled the reagent of being packed in bottle 1, reagent pipe 2 and the color comparison tube 3, and the color of colorimetric card 4 is different with color range, shows row no longer one by one at this.
From above-mentioned example, as can be seen, measure used whole reagent, sampling instrument and chromogenic reaction thereof and all in plastic bottle or pipe, finish, do not need other complex instrument and equipment can finish detection, the on-the-spot semiquantitative determination of particularly suitable; Sampling, chemical reaction, colour developing is all finished in transparent or semitransparent plastic tube, and not only sample and reagent dosage are few, and the reagent after using can reclaim with the plastic tube sealing, prevent and have reduced secondary pollution; And one of characteristics of the utility model maximum when being also that it is measured operation very simple, and detection speed is fast, measures only need 3～10 minutes of a sample.
Claims (6)
1, formaldehyde colorimetric speed is surveyed bag in a kind of disposable air, it is characterized in that, it comprises an external packing and is encapsulated in the interior absorption of sample of described external packing handles bottle, and reagent pipe and color comparison tube also comprise colorimetric card.
2, disposable colorimetric speed according to claim 1 is surveyed bag, it is characterized in that it is with cover that described absorption of sample is handled bottle, in the bottle medicament is housed.
3, disposable colorimetric speed according to claim 1 is surveyed bag, it is characterized in that, and encapsulation reagent in the described reagent pipe, sealing part is provided with mark line.
4, disposable colorimetric speed according to claim 1 is surveyed bag, it is characterized in that described color comparison tube is the suction pipe shape, and the bottom is thicker, is cylindric, and top is thin slightly, is tubulose, the tubule port sealing; Be packaged with developer in the described color comparison tube.
5, disposable colorimetric speed according to claim 4 is surveyed bag, it is characterized in that on the tube wall of described color comparison tube top scale being arranged, and color comparison tube has the suction pipe function concurrently.
6, disposable colorimetric speed according to claim 1 is surveyed bag, it is characterized in that described colorimetric card colorimetric color range is attached in the external packing, each above the color range or below indicate the concentration value (mg/m of formaldehyde
3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02285930 CN2577278Y (en) | 2002-11-12 | 2002-11-12 | Disposable colorimetric quick test package of methanal in air |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02285930 CN2577278Y (en) | 2002-11-12 | 2002-11-12 | Disposable colorimetric quick test package of methanal in air |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2577278Y true CN2577278Y (en) | 2003-10-01 |
Family
ID=33746790
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02285930 Expired - Lifetime CN2577278Y (en) | 2002-11-12 | 2002-11-12 | Disposable colorimetric quick test package of methanal in air |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2577278Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102353749A (en) * | 2011-07-11 | 2012-02-15 | 邯郸派瑞电器有限公司 | Test paper for quickly detecting formaldehyde in air |
| 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 |
| CN104297240A (en) * | 2014-10-24 | 2015-01-21 | 中国人民解放军国防科学技术大学 | Method and device applied to detection of toxic metal ions in water |
| CN104390959A (en) * | 2014-11-06 | 2015-03-04 | 常熟市苏常工程质量检测有限公司 | Method for detecting content of formaldehyde in house |
| CN104406974A (en) * | 2014-11-28 | 2015-03-11 | 苏州东辰林达检测技术有限公司 | Formaldehyde detection agent and preparation method thereof |
| CN109374616A (en) * | 2018-11-27 | 2019-02-22 | 湖北建研科峰工程质量检测有限公司 | Method for measuring concentration of formaldehyde |
| CN110907371A (en) * | 2019-11-26 | 2020-03-24 | 中国地质调查局水文地质环境地质调查中心 | On-site detection reagent tube for ferric ions in water and detection method |
| CN112858279A (en) * | 2021-02-04 | 2021-05-28 | 江苏中烟工业有限责任公司 | Method for rapidly determining residual amount of formaldehyde in water-based adhesive |
-
2002
- 2002-11-12 CN CN 02285930 patent/CN2577278Y/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102353749A (en) * | 2011-07-11 | 2012-02-15 | 邯郸派瑞电器有限公司 | Test paper for quickly detecting formaldehyde in air |
| CN102353749B (en) * | 2011-07-11 | 2015-07-01 | 邯郸派瑞电器有限公司 | Test paper for quickly detecting formaldehyde in air |
| 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 |
| CN104297240A (en) * | 2014-10-24 | 2015-01-21 | 中国人民解放军国防科学技术大学 | Method and device applied to detection of toxic metal ions in water |
| CN104390959A (en) * | 2014-11-06 | 2015-03-04 | 常熟市苏常工程质量检测有限公司 | Method for detecting content of formaldehyde in house |
| CN104406974A (en) * | 2014-11-28 | 2015-03-11 | 苏州东辰林达检测技术有限公司 | Formaldehyde detection agent and preparation method thereof |
| CN109374616A (en) * | 2018-11-27 | 2019-02-22 | 湖北建研科峰工程质量检测有限公司 | Method for measuring concentration of formaldehyde |
| CN110907371A (en) * | 2019-11-26 | 2020-03-24 | 中国地质调查局水文地质环境地质调查中心 | On-site detection reagent tube for ferric ions in water and detection method |
| CN112858279A (en) * | 2021-02-04 | 2021-05-28 | 江苏中烟工业有限责任公司 | Method for rapidly determining residual amount of formaldehyde in water-based adhesive |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20121112 Granted publication date: 20031001 |