CN105403560A - Formaldehyde test paper and preparing method thereof - Google Patents
Formaldehyde test paper and preparing method thereof Download PDFInfo
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- CN105403560A CN105403560A CN201510908252.9A CN201510908252A CN105403560A CN 105403560 A CN105403560 A CN 105403560A CN 201510908252 A CN201510908252 A CN 201510908252A CN 105403560 A CN105403560 A CN 105403560A
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- test paper
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- 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
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- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
Abstract
Formaldehyde test paper and a preparing method thereof are disclosed. The formaldehyde test paper comprises a test paper strip and a test paper box. The test paper box comprises a box body and a hinged box cover. The test paper strip comprises a substrate, developing test paper fixed to the substrate and cover film at least covering the developing test paper and being detachably adhered to the outer surface of the developing test paper. The box body is provided with a ring of a box edge. An opening from which the test paper strip can be pulled out is disposed at the box edge. The test paper strip is wound inside the box edge of the box body. Sawtooth holes are disposed between one piece of the test paper and another piece of the test paper and used for breaking different pieces of the test paper. The preparing method of the test paper includes (1) preparing a dipping solution, (2) dipping for the first time, (3) dipping for the second time and (4) drying. The test paper is scientific and reasonable in design, can capture and adsorb formaldehyde, and can show the content of the formaldehyde through color changing. The test paper is convenient to carry, simple to use, rapid and flexible, and is advantaged by being intuitive, rapid, trace, accurate and high in reproducibility. The test paper is high in sensitivity and convenient to use.
Description
Technical field
The present invention relates to inspection field, be specifically related to a kind of formaldehyde test paper and preparation method thereof.
Background technology
A room air pollution to be done to new house to detect, want the thousands of unit of hundreds of easily.Some citizen are reluctant to flower the money, but purchase test paper for formaldehyde detection checks voluntarily on the net.As long as use these test paper for formaldehyde detections just can obtain reliable test result in one minute.And operation does not bother, as long as test fluid just can be obtained a result compared with formaldehyde colorimetric colour atla.
Formaldehyde (molecular formula: HCHO), also known as formaldehyde, is the simplest aldehydes, is a kind of flammable, colourless and gas excitatory under normal circumstances.Soluble in water, alcohol and ether.The formalin of 35 ~ 40% is called formalin.Formaldehyde is a kind of important Organic Ingredients, is mainly used in plastics industry, synthon (as synthesis vinylon-polyvinyl formal), leather industry, medicine, dyestuff etc.Research shows: formaldehyde has strong carcinogenic and tumor promotion.Lot of documents is recorded, and the impact of formaldehyde on health is mainly manifested in the aspects such as allotriosmia, stimulation, allergy, abnormal pulmonary function, dysfunction of liver and immunologic dysfunction.
Summary of the invention
The object of this invention is to provide one can be convenient for people to carry, detect easy formaldehyde test paper, and preparation method thereof.
A kind of formaldehyde test paper and preparation method thereof, comprises test strips and paper box; Described paper box is made up of box body and hinge lid; Described test paper comprises substrate, is fixed on the colour developing test paper of described substrate and at least covers and the removable overlay film adhering to colour developing test paper outside surface and fix; Described box body is provided with a circle box limit, and box limit has the outlet that can extract test strips out; Described test strips circle is around the inner side on box body box limit; Described test paper and test paper junction are provided with sawtooth hole, in order to the different test paper that ruptures.
Further, the two sides in the test strips exit on described lid surrounding edge have the inclined-plane paralleled with extracted out test strips.
Further, described substrate is PVC or PET thin slice.
Further, the preparation method of described formaldehyde test paper is as follows:
(1) immersion liquid preparation: peanut oil 50-80 part; Cellulase 8-10 part; Sodium Benzoate 1-1.5 part; HEDP 1.8-3.2 part; Baryta hydrate 6-10 part; Amino acid 2-3 part; Tea Polyphenols 0.8-3 part; Phosphate buffer 1 5-30 part; Citric acid 7-12 part;
(2) once soak: test paper is immersed in immersion liquid, 30 ~ 50min, pulls out and dry, until do not drip immersion liquid;
(3) secondary soaks: again soaked by the test paper secondary once soaked, soak time is 10-15min, pulls out and dries, until do not drip immersion liquid;
(4) dry: secondary is soaked the test paper after drying, send into dryer, dry, drying time is 5 ~ 8min.
The invention has the beneficial effects as follows:
Design science of the present invention, rationally, can be caught, formaldehyde adsorption changed by color and show content of formaldehyde.The present invention is easy to carry, use is simple, fast and flexible, has advantage directly perceived, quick, micro-, accurate, reappearance is high; Formaldehyde testing reagent of the present invention is highly sensitive, easy to use.
Embodiment
Embodiment 1
A kind of formaldehyde test paper and preparation method thereof, comprises test strips and paper box; Described paper box is made up of box body and hinge lid; Described test paper comprises substrate, is fixed on the colour developing test paper of described substrate and at least covers and the removable overlay film adhering to colour developing test paper outside surface and fix; Described box body is provided with a circle box limit, and box limit has the outlet that can extract test strips out; Described test strips circle is around the inner side on box body box limit; Described test paper and test paper junction are provided with sawtooth hole, in order to the different test paper that ruptures.
Further, the two sides in the test strips exit on described lid surrounding edge have the inclined-plane paralleled with extracted out test strips.
Further, described substrate is PVC or PET thin slice.
Further, the preparation method of described formaldehyde test paper is as follows:
(1) immersion liquid preparation: peanut oil 50 parts; Cellulase 8 parts; Sodium Benzoate 1 part; HEDP 1.8 parts; Baryta hydrate 6 parts; 2 parts, amino acid; Tea Polyphenols 0.8 part; Phosphate buffer 15 parts; Citric acid 7 parts;
(2) once soak: test paper is immersed in immersion liquid, 30min, pulls out and dry, until do not drip immersion liquid;
(3) secondary soaks: again soaked by the test paper secondary once soaked, soak time is 10min, pulls out and dries, until do not drip immersion liquid;
(4) dry: secondary is soaked the test paper after drying, send into dryer, dry, drying time is 5min.
Embodiment 2
A kind of formaldehyde test paper and preparation method thereof, comprises test strips and paper box; Described paper box is made up of box body and hinge lid; Described test paper comprises substrate, is fixed on the colour developing test paper of described substrate and at least covers and the removable overlay film adhering to colour developing test paper outside surface and fix; Described box body is provided with a circle box limit, and box limit has the outlet that can extract test strips out; Described test strips circle is around the inner side on box body box limit; Described test paper and test paper junction are provided with sawtooth hole, in order to the different test paper that ruptures.
Further, the two sides in the test strips exit on described lid surrounding edge have the inclined-plane paralleled with extracted out test strips.
Further, described substrate is PVC or PET thin slice.
Further, the preparation method of described formaldehyde test paper is as follows:
(1) immersion liquid preparation: peanut oil 60 parts; Cellulase 9 parts; Sodium Benzoate 1.2 parts; HEDP 2.5 parts; Baryta hydrate 8 parts; 2.5 parts, amino acid; Tea Polyphenols 0.8-3 part; Phosphate buffer 20 parts; Citric acid 8 parts;
(2) once soak: test paper is immersed in immersion liquid, 40min, pulls out and dry, until do not drip immersion liquid;
(3) secondary soaks: again soaked by the test paper secondary once soaked, soak time is 12min, pulls out and dries, until do not drip immersion liquid;
(4) dry: secondary is soaked the test paper after drying, send into dryer, dry, drying time is 6min.
Embodiment 3
A kind of formaldehyde test paper and preparation method thereof, comprises test strips and paper box; Described paper box is made up of box body and hinge lid; Described test paper comprises substrate, is fixed on the colour developing test paper of described substrate and at least covers and the removable overlay film adhering to colour developing test paper outside surface and fix; Described box body is provided with a circle box limit, and box limit has the outlet that can extract test strips out; Described test strips circle is around the inner side on box body box limit; Described test paper and test paper junction are provided with sawtooth hole, in order to the different test paper that ruptures.
Further, the two sides in the test strips exit on described lid surrounding edge have the inclined-plane paralleled with extracted out test strips.
Further, described substrate is PVC or PET thin slice.
Further, the preparation method of described formaldehyde test paper is as follows:
(1) immersion liquid preparation: peanut oil 80 parts; Cellulase 10 parts; Sodium Benzoate 1.5 parts; HEDP 3.2 parts; Baryta hydrate 10 parts; 3 parts, amino acid; Tea Polyphenols 3 parts; Phosphate buffer 30 parts; Citric acid 12 parts;
(2) once soak: test paper is immersed in immersion liquid, 50min, pulls out and dry, until do not drip immersion liquid;
(3) secondary soaks: again soaked by the test paper secondary once soaked, soak time is 15min, pulls out and dries, until do not drip immersion liquid;
(4) dry: secondary is soaked the test paper after drying, send into dryer, dry, drying time is 8min.
Above-mentioned explanation is not limitation of the present invention, and the present invention is also not limited in above-mentioned citing, and the change that those skilled in the art make in essential scope of the present invention, remodeling, interpolation or replacement also should belong to protection scope of the present invention.
Claims (4)
1. formaldehyde test paper and preparation method thereof, is characterized in that, comprises test strips and paper box; Described paper box is made up of box body and hinge lid; Described test paper comprises substrate, is fixed on the colour developing test paper of described substrate and at least covers and the removable overlay film adhering to colour developing test paper outside surface and fix; Described box body is provided with a circle box limit, and box limit has the outlet that can extract test strips out; Described test strips circle is around the inner side on box body box limit; Described test paper and test paper junction are provided with sawtooth hole, in order to the different test paper that ruptures.
2. a kind of formaldehyde test paper and preparation method thereof according to claim 1, it is characterized in that, the two sides in the test strips exit on described lid surrounding edge have the inclined-plane paralleled with extracted out test strips.
3. a kind of formaldehyde test paper and preparation method thereof according to claim 1, it is characterized in that, described substrate is PVC or PET thin slice.
4. the preparation method of formaldehyde test paper according to claim 1 is as follows:
(1) immersion liquid preparation: peanut oil 50-80 part; Cellulase 8-10 part; Sodium Benzoate 1-1.5 part; HEDP 1.8-3.2 part; Baryta hydrate 6-10 part; Amino acid 2-3 part; Tea Polyphenols 0.8-3 part; Phosphate buffer 1 5-30 part; Citric acid 7-12 part;
(2) once soak: test paper is immersed in immersion liquid, 30 ~ 50min, pulls out and dry, until do not drip immersion liquid;
(3) secondary soaks: again soaked by the test paper secondary once soaked, soak time is 10-15min, pulls out and dries, until do not drip immersion liquid;
(4) dry: secondary is soaked the test paper after drying, send into dryer, dry, drying time is 5 ~ 8min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510908252.9A CN105403560A (en) | 2015-12-10 | 2015-12-10 | Formaldehyde test paper and preparing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510908252.9A CN105403560A (en) | 2015-12-10 | 2015-12-10 | Formaldehyde test paper and preparing method thereof |
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| CN105403560A true CN105403560A (en) | 2016-03-16 |
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| CN201510908252.9A Pending CN105403560A (en) | 2015-12-10 | 2015-12-10 | Formaldehyde test paper and preparing method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106770925A (en) * | 2016-12-14 | 2017-05-31 | 蔡璇 | A kind of food formaldehyde quick detection reagent |
| CN107884398A (en) * | 2017-11-08 | 2018-04-06 | 安徽信灵检验医学科技有限公司 | A kind of formaldehyde testing reagent and its application |
| CN108254512A (en) * | 2018-01-15 | 2018-07-06 | 山东五洲检测有限公司 | A kind of quick detection reagent of formaldehyde in food and preparation method thereof |
-
2015
- 2015-12-10 CN CN201510908252.9A patent/CN105403560A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106770925A (en) * | 2016-12-14 | 2017-05-31 | 蔡璇 | A kind of food formaldehyde quick detection reagent |
| CN107884398A (en) * | 2017-11-08 | 2018-04-06 | 安徽信灵检验医学科技有限公司 | A kind of formaldehyde testing reagent and its application |
| CN108254512A (en) * | 2018-01-15 | 2018-07-06 | 山东五洲检测有限公司 | A kind of quick detection reagent of formaldehyde in food and preparation method thereof |
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Application publication date: 20160316 |