CN110441301A - Formaldehyde rapid detection method and device based on fuchsin sodium sulfite reagent - Google Patents
Formaldehyde rapid detection method and device based on fuchsin sodium sulfite reagent Download PDFInfo
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- CN110441301A CN110441301A CN201910832082.9A CN201910832082A CN110441301A CN 110441301 A CN110441301 A CN 110441301A CN 201910832082 A CN201910832082 A CN 201910832082A CN 110441301 A CN110441301 A CN 110441301A
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- sodium sulfite
- fuchsin
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- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 title claims abstract description 203
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 title claims abstract description 114
- 238000001514 detection method Methods 0.000 title claims abstract description 76
- AXDJCCTWPBKUKL-UHFFFAOYSA-N 4-[(4-aminophenyl)-(4-imino-3-methylcyclohexa-2,5-dien-1-ylidene)methyl]aniline;hydron;chloride Chemical compound Cl.C1=CC(=N)C(C)=CC1=C(C=1C=CC(N)=CC=1)C1=CC=C(N)C=C1 AXDJCCTWPBKUKL-UHFFFAOYSA-N 0.000 title claims abstract description 60
- 235000010265 sodium sulphite Nutrition 0.000 title claims abstract description 57
- 239000003153 chemical reaction reagent Substances 0.000 title abstract 6
- 239000000243 solution Substances 0.000 claims abstract description 44
- 239000007788 liquid Substances 0.000 claims abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000012086 standard solution Substances 0.000 claims abstract description 12
- 239000000463 material Substances 0.000 claims abstract description 9
- 230000008859 change Effects 0.000 claims abstract description 8
- 238000002835 absorbance Methods 0.000 claims abstract description 7
- 239000008367 deionised water Substances 0.000 claims abstract description 7
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 7
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 17
- 238000012360 testing method Methods 0.000 claims description 13
- 239000012153 distilled water Substances 0.000 claims description 6
- 238000009423 ventilation Methods 0.000 claims description 6
- 230000002093 peripheral effect Effects 0.000 claims description 4
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 claims description 3
- 230000009471 action Effects 0.000 claims description 3
- 229940052223 basic fuchsin Drugs 0.000 claims description 3
- 238000007664 blowing Methods 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 3
- 238000010790 dilution Methods 0.000 claims description 3
- 239000012895 dilution Substances 0.000 claims description 3
- 238000004090 dissolution Methods 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 239000011550 stock solution Substances 0.000 claims description 3
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 14
- 238000011161 development Methods 0.000 abstract description 3
- 239000008098 formaldehyde solution Substances 0.000 abstract 2
- 238000007865 diluting Methods 0.000 abstract 1
- 238000012031 short term test Methods 0.000 abstract 1
- UKTDQTGMXUHPIF-UHFFFAOYSA-N [Na].S(O)(O)=O Chemical compound [Na].S(O)(O)=O UKTDQTGMXUHPIF-UHFFFAOYSA-N 0.000 description 9
- 230000006378 damage Effects 0.000 description 7
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 4
- 229930040373 Paraformaldehyde Natural products 0.000 description 3
- 230000000711 cancerogenic effect Effects 0.000 description 3
- 231100000315 carcinogenic Toxicity 0.000 description 3
- 229920002866 paraformaldehyde Polymers 0.000 description 3
- 230000006641 stabilisation Effects 0.000 description 3
- 238000011105 stabilization Methods 0.000 description 3
- 230000000638 stimulation Effects 0.000 description 3
- 206010020751 Hypersensitivity Diseases 0.000 description 2
- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- -1 formaldehyde Aldehyde Chemical class 0.000 description 2
- 208000032839 leukemia Diseases 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- GPWNWKWQOLEVEQ-UHFFFAOYSA-N 2,4-diaminopyrimidine-5-carbaldehyde Chemical compound NC1=NC=C(C=O)C(N)=N1 GPWNWKWQOLEVEQ-UHFFFAOYSA-N 0.000 description 1
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 241000208340 Araliaceae Species 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 206010058467 Lung neoplasm malignant Diseases 0.000 description 1
- 208000002454 Nasopharyngeal Carcinoma Diseases 0.000 description 1
- 206010061306 Nasopharyngeal cancer Diseases 0.000 description 1
- 206010028980 Neoplasm Diseases 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 206010047700 Vomiting Diseases 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 150000001299 aldehydes Chemical class 0.000 description 1
- 208000026935 allergic disease Diseases 0.000 description 1
- 208000030961 allergic reaction Diseases 0.000 description 1
- 230000007815 allergy Effects 0.000 description 1
- 208000006673 asthma Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 201000011510 cancer Diseases 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- WBZKQQHYRPRKNJ-UHFFFAOYSA-L disulfite Chemical compound [O-]S(=O)S([O-])(=O)=O WBZKQQHYRPRKNJ-UHFFFAOYSA-L 0.000 description 1
- 230000004064 dysfunction Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 230000001900 immune effect Effects 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 231100000636 lethal dose Toxicity 0.000 description 1
- 201000005202 lung cancer Diseases 0.000 description 1
- 208000020816 lung neoplasm Diseases 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 201000011216 nasopharynx carcinoma Diseases 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000009325 pulmonary function Effects 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 210000002784 stomach Anatomy 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 230000009967 tasteless effect Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
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
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
-
- 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
Abstract
A formaldehyde rapid detection method based on a fuchsin sodium sulfite reagent comprises the following steps: preparing a formaldehyde standard solution; preparing a sodium sulfite solution; preparing a fuchsin solution; preparing a fuchsin sodium sulfite reagent; taking a certain amount of formaldehyde standard solution and diluting the formaldehyde standard solution to a certain concentration by using deionized water; taking 2.5ml of the fuchsin sodium sulfite reagent prepared in the S4, and adding the reagent into the formaldehyde solution diluted in the S5; detecting the absorbance change of the solution in the S6 by using a visible spectrophotometer; repeating S5, S6, and S7; still provide a formaldehyde short-term test device based on fuchsin sodium sulfite reagent, including detection case box, detection case lid, flourishing liquid ware, fan, sucking disc, dead lever, connecting piece and support tight subassembly. According to the invention, the fuchsin sodium sulfite solution reacts with the formaldehyde solution to generate a color development effect, the color development effect is obvious, the material is easy to obtain, the operation is simple and convenient, the formaldehyde can be accurately and rapidly detected, and further the formaldehyde can be detected to each family.
Description
Technical field
The present invention relates to formaldehyde examination technical field more particularly to a kind of formaldehyde based on Fuchsin Sodium Sulfite are quick
Detection method and device.
Background technique
Formaldehyde is not only a kind of important chemical materials, and is also present in our living environment, many illegal points
Sub excessively to pursue interests, no small harm is done, saves and improves mouthfeel for the anti-corrosion that formaldehyde is used for sea hair food and grain, make consumer
By many injuries among for no reason, and the mankind are manufactured on building materials using Lauxite and synthetic fibers etc., use first
Coating that aldehyde is made into, adhesive, there are also the imperfect combustion of organic matter (such as gasoline, diesel oil), and a large amount of free property formaldehyde have been discharged,
In addition to this, the burning of cigarette can also generate a small amount of formaldehyde, therefore we also will inevitably contact with formaldehyde, there is research
The normal decay period for showing formaldehyde is 3 to 15 years, and formaldehyde has become one of 21 century most important gas pollutant, and controls
Making, monitor and handle this kind of atmosphere pollution becomes the task of top priority；
For root it was found that many substances only reach a certain concentration and just show toxicity, formaldehyde is not fearful, and fearful is that formaldehyde is super
Target harm, some researches show that the parts disease such as nasopharyngeal carcinoma, leukemia (leukaemia) and lung cancer is exactly first caused by formaldehyde
Aldehyde can be to artificial at stimulation, allergy, pit of the stomach abnormal pulmonary function, immunologic dysfunction etc., when indoor sealing space formaldehyde is dense
In 0.1mg/m3, people can smell peculiar smell and feel uncomfortable degree, and when its concentration reaches 0.5 mg/m3, people can be pierced
Sharp drops tears, and causes allergic reaction, and when reaching 0.6 mg/m3, people can feel throat stimulation discomfort or pain, when even higher
Phenomena such as having nausea and vomiting, people can be at once dead when reaching 30mg/m3；The concentration of formaldehyde ratio that human body is taken in by respiration
It is lower, although being not easy to reach lethal dosage, causes the stimulation of eye to be shed tears and only need micro 0.1ppm concentration with regard to enough,
It reduces children and suffers from asthma, the concentration of formaldehyde must be smaller than 60 μ g/m3；
With the development of society, and scientific knowledge it is universal, people's harm exceeded to indoor formaldehyde has certain understanding,
If human body is lived in the environment of having been at high-concentration formaldehyde, the diseases such as cancer will be induced over time, and consequence is very tight
Weight, but carbaldehyde as colorless is tasteless, the businessman for accepting formaldehyde in the market is difficult to regulate due to enforcing the law, so the quality ginseng that they detect
Difference is uneven, and general public can not carry out accurate judgement for testing result, if can be gone out by experimental exploring a kind of accurate, fast
The method that fast, easy to operate and material is easy to get detects formaldehyde, and formaldehyde examination can be allowed to come into each family, allows each new
The family fitted up can prevent the harm of formaldehyde in time, far from carcinogenic gas, feel at ease to live in new house.
Summary of the invention
(1) goal of the invention
To solve technical problem present in background technique, the present invention proposes that a kind of formaldehyde based on Fuchsin Sodium Sulfite is fast
Color developing effect, and color developing effect are reacted with formalin by magenta sulphurous acid sodium solution and generated to fast detection method and device
Obviously, material is easily obtained, easy to operate, can accurate and quick PARA FORMALDEHYDE PRILLS(91,95) detected, and then can allow formaldehyde examination
Come into each family.
(2) technical solution
To solve the above problems, the invention proposes a kind of method for fast detection of formaldehyde based on Fuchsin Sodium Sulfite, packet
Include following steps:
S1, formaldehyde standard solution is prepared, takes commercially available formaldehyde stock solution and is diluted with deionized water, it is 1.0mg/ml that concentration, which is made,
Formaldehyde standard solution；
S2, sodium sulfite solution is prepared, weighs a certain amount of solid sodium sulfite using electronic balance scale and is boiled with a certain amount of
Cooling distilled water is dissolved afterwards, and 10% sodium sulfite solution is made；
S3, fuchsin solution is prepared, weigh the basic fuchsin of 0.1g using electronic balance scale and is incited somebody to action with a certain amount of 80 DEG C of distilled water
It is dissolved, and fuchsin solution after completely dissolution is filtered and is cooled down, is cooled to room temperature；
S4, prepare Fuchsin Sodium Sulfite, be added in the fuchsin solution prepared into S3 10ml 10% sodium sulfite solution and
The concentrated sulfuric acid of 1ml, is then settled to 100ml；
S5, it takes the formaldehyde standard solution prepared in a certain amount of S1 and is diluted to a certain concentration using deionized water；
S6, the Fuchsin Sodium Sulfite 2.5ml prepared in S4 is taken, and be added into S5 in diluted formalin；
S7, the absorbance change of solution in visible spectrophotometer detection S6 is used；
S8, repeat S5, S6 and S7, and record every time test in Fuchsin Sodium Sulfite sufficiently reacted with formalin after show
The absorbance change of color, to reduce human error.
Preferably, in S3, Fuchsin Sodium Sulfite needs to place 1h or more after the completion of preparing, and can make after being still bleached
With.
Preferably, in S3, Fuchsin Sodium Sulfite needs ready-to-use.
Preferably, in S3, Fuchsin Sodium Sulfite should be placed in refrigerator and save, and shelf lives are no more than 14
It, it is expired, it should not use.
Preferably, in S5, the formalin concentration after dilution need to be 2 × 10-3Mg/ ml or more.
Preferably, in S7, it is seen that the test wavelength of spectrophotometer is 549mm.
Preferably, in S7, the color stability time is 40min.
Preferably, in S8, replicated experimental units are at least 3 times.
The invention also provides a kind of quick methanol detection devices based on Fuchsin Sodium Sulfite, including detection case case
Body, detection case lid, liquid holding device, fan, sucker, fixed link, connector and abutting component；
The detection case bottom of box is equipped with non-slip mat, and outer peripheral surface is obliquely installed supporting element；The one end of supporting element far from detection box body
With ground face contact；Ventilation opening is additionally provided on detection box body；
Detection case lid is threadedly coupled with detection box body, and handle is equipped at the top of detection case lid；Fan is arranged in detection case
On lid and it is located in detection box body, and blowing direction is downward；
Fixed link is horizontally set on detection box body and connect with connector；The transversal cross-section of connector is annular shape, is pushed against
Component circular array in connector is distributed；
Component is pushed against to include elastic component, fixing pipe, sliding bar, push against part and locating part；Fixing pipe is horizontally set on connector；
Sliding bar is plugged and fixed Guan Bingyu and pushes against part connection；Locating part is located in fixing pipe and connect with sliding bar；Elastic component setting exists
It is connect in fixing pipe and with locating part；It pushes against part and resists liquid holding device；
Liquid holding device is opening up and is located at below fan, and inside fills fuchsin sulfite detection solution；Sucker setting is being contained
Liquid device bottom is simultaneously adsorbed on detection box body.
Preferably, non-slip mat is made of rubber material, and surface is equipped with antiskid thread.
Above-mentioned technical proposal of the invention has following beneficial technical effect:
Color developing effect is reacted and generated with formalin by magenta sulphurous acid sodium solution, and color developing effect is obvious, material is easy to
Obtain, it is easy to operate, can accurate and quick PARA FORMALDEHYDE PRILLS(91,95) detected, and then formaldehyde examination can be allowed to come into each family,
It allows each new family fitted up that can prevent the harm of formaldehyde in time, far from carcinogenic gas, feels at ease to live in new house；
Liquid holding device can be securely fixed, the stabilization of liquid holding device is conducive to, avoids encountering detection case and solution being caused to spill, and
The placement process for detecting box body can be made more stable, be not easy to be knocked over；
Fan carries out pectinid and air flowing, room air in detection box body is driven to enter detection box body by ventilation opening
It is interior, it comes into full contact with magenta sulphurous acid sodium solution with air, the formaldehyde in air is detected, detection efficiency is improved.
Detailed description of the invention
Fig. 1 is a kind of structural representation of the quick methanol detection device based on Fuchsin Sodium Sulfite proposed by the present invention
Figure.
Fig. 2 is connector in a kind of quick methanol detection device based on Fuchsin Sodium Sulfite proposed by the present invention
Structural schematic diagram (top view).
Appended drawing reference: 1, box body is detected；2, detection case lid；3, liquid holding device；4, fan；5, handle；6, non-slip mat；7,
Supporting element；8, sucker；9, ventilation opening；10, fixed link；11, connector；12, elastic component；13, fixing pipe；14, sliding bar；15,
Push against part；16, locating part.
Specific embodiment
In order to make the objectives, technical solutions and advantages of the present invention clearer, With reference to embodiment and join
According to attached drawing, the present invention is described in more detail.It should be understood that these descriptions are merely illustrative, and it is not intended to limit this hair
Bright range.In addition, in the following description, descriptions of well-known structures and technologies are omitted, to avoid this is unnecessarily obscured
The concept of invention.
The invention proposes a kind of method for fast detection of formaldehyde based on Fuchsin Sodium Sulfite, comprising the following steps:
S1, formaldehyde standard solution is prepared, takes commercially available formaldehyde stock solution and is diluted with deionized water, it is 1.0mg/ml that concentration, which is made,
Formaldehyde standard solution；
S2, sodium sulfite solution is prepared, weighs a certain amount of solid sodium sulfite using electronic balance scale and is boiled with a certain amount of
Cooling distilled water is dissolved afterwards, and 10% sodium sulfite solution is made；
S3, fuchsin solution is prepared, weigh the basic fuchsin of 0.1g using electronic balance scale and is incited somebody to action with a certain amount of 80 DEG C of distilled water
It is dissolved, and fuchsin solution after completely dissolution is filtered and is cooled down, is cooled to room temperature；
S4, prepare Fuchsin Sodium Sulfite, be added in the fuchsin solution prepared into S3 10ml 10% sodium sulfite solution and
The concentrated sulfuric acid of 1ml, is then settled to 100ml；
S5, it takes the formaldehyde standard solution prepared in a certain amount of S1 and is diluted to a certain concentration using deionized water；
S6, the Fuchsin Sodium Sulfite 2.5ml prepared in S4 is taken, and be added into S5 in diluted formalin；
S7, the absorbance change of solution in visible spectrophotometer detection S6 is used；
S8, repeat S5, S6 and S7, and record every time test in Fuchsin Sodium Sulfite sufficiently reacted with formalin after show
The absorbance change of color, to reduce human error.
In an alternative embodiment, in S3, Fuchsin Sodium Sulfite needs to place 1h or more after the completion of preparing, and makes
Its rear of decolourizing can be used, and avoid the color of magenta sulphurous acid sodium solution itself from impacting color developing effect, and then to test
Bring adverse effect.
In an alternative embodiment, in S3, Fuchsin Sodium Sulfite need to be ready-to-use, avoids influencing pinkish red Asia
The effect of metabisulfite solution, and then the accuracy of test is affected.
In an alternative embodiment, in S3, Fuchsin Sodium Sulfite should be placed in refrigerator and save, when guaranteeing the quality
Between no more than 14 days, it is expired, should not use, the effect for influencing magenta sulphurous acid sodium solution be avoided, and then to the accurate of test
Property affects.
In an alternative embodiment, in S5, the formalin concentration after dilution need to be 2 × 10-3Mg/ ml with
On, it avoids formalin concentration too low and causes color developing effect unobvious, and then test result is affected.
In an alternative embodiment, in S7, it is seen that the test wavelength of spectrophotometer is 549mm, pinkish red sulfurous
The best test wavelength of acid sodium solution is 549mm.
In an alternative embodiment, in S7, the color stability time is 40min.This time of 40min is relatively suitable
In, magenta sulphurous acid sodium solution and formalin reaction solution basically reach stabilization at the time point, avoid overlong time or mistake
It is short that testing result is affected, if the time it is too short will lead to colour developing it is unstable, overlong time will lead in air it is certain because
Son affects colour developing.
In an alternative embodiment, in S8, replicated experimental units are at least 3 times, reduce human error.
In the present invention, color developing effect, and color developing effect are reacted and generated with formalin by magenta sulphurous acid sodium solution
Obviously, material is easily obtained, easy to operate, can accurate and quick PARA FORMALDEHYDE PRILLS(91,95) detected, and then can allow formaldehyde examination
Each family is come into, allows each new family fitted up that can prevent the harm of formaldehyde in time, far from carcinogenic gas, feels at ease to live in
New house.
As shown in Figs. 1-2, the invention also provides a kind of quick methanol detection device based on Fuchsin Sodium Sulfite,
Including detection box body 1, detection case lid 2, liquid holding device 3, fan 4, sucker 8, fixed link 10, connector 11 and push against component；
Detection box body 1 is transparence, and detection 1 bottom of box body is equipped with non-slip mat 6, and outer peripheral surface is obliquely installed supporting element 7；Support
Part 7 one end and ground face contact far from detection box body 1；Ventilation opening 9 is additionally provided on detection box body 1；
Detection case lid 2 is threadedly coupled with detection box body 1, and handle 5 is equipped at the top of detection case lid 2；Handle 5 can be passed through
Taking and placing device, use are more portable；Fan 4 is arranged on detection case lid 2 and is located in detection box body 1, and blowing direction
Downward；
Fixed link 10 is horizontally set on detection box body 1 and connect with connector 11；The transversal cross-section of connector 11 is annulus
Shape pushes against component circular array in connector 11 and is distributed；
Component is pushed against to include elastic component 12, fixing pipe 13, sliding bar 14, push against part 15 and locating part 16；13 level of fixing pipe is set
It sets on connector 11；Sliding bar 14 is plugged and fixed pipe 13 and connect with part 15 is pushed against；Locating part 16 is located in fixing pipe 13 simultaneously
It is connect with sliding bar 14；Elastic component 12 is arranged in fixing pipe 13 and connect with locating part 16；It pushes against part 15 and resists liquid holding device 3；
Liquid holding device 3 is transparence, and liquid holding device 3 is opening up and is located at 4 lower section of fan, and inside fills fuchsin sulfite detection
Solution；The setting of sucker 8 is in 3 bottom of liquid holding device and is adsorbed on detection box body 1.
In an alternative embodiment, non-slip mat 6 is made of rubber material, and surface is equipped with antiskid thread.
In the present invention, prepared magenta sulphurous acid sodium solution is entered in liquid holding device 3, and by liquid holding device 3 from connector
It being passed through in 11, elastic component 12 is in compressive state and applies pressure to part 15 is pushed against, make to push against part 15 tightly against liquid holding device 3,
And sucker 8 is adsorbed on detection box body 1, can be securely fixed liquid holding device 3, is conducive to the stabilization of liquid holding device 3, avoid encountering
Detection case and cause solution to spill, and detect 1 bottom of box body equipped with non-slip mat 6, outer peripheral surface is equipped with multiple inclined supports
Part 7 can make the placement process for detecting box body 1 more stable, be not easy to be knocked over；
And when in use, fan 4 carries out pectinid, and then drives air flowing in detection box body 1, and room air is by ventilation
Mouth 9 enters in detection box body 1, comes into full contact with magenta sulphurous acid sodium solution with air, detects to the formaldehyde in air,
Detection efficiency can be improved.
It should be understood that above-mentioned specific embodiment of the invention is used only for exemplary illustration or explains of the invention
Principle, but not to limit the present invention.Therefore, that is done without departing from the spirit and scope of the present invention is any
Modification, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.In addition, appended claims purport of the present invention
Covering the whole variations fallen into attached claim scope and boundary or this range and the equivalent form on boundary and is repairing
Change example.
Claims (10)
1. a kind of method for fast detection of formaldehyde based on Fuchsin Sodium Sulfite, which comprises the following steps:
S1, formaldehyde standard solution is prepared, takes commercially available formaldehyde stock solution and is diluted with deionized water, it is 1.0mg/ml that concentration, which is made,
Formaldehyde standard solution；
S2, sodium sulfite solution is prepared, weighs a certain amount of solid sodium sulfite using electronic balance scale and is boiled with a certain amount of
Cooling distilled water is dissolved afterwards, and 10% sodium sulfite solution is made；
S3, fuchsin solution is prepared, weigh the basic fuchsin of 0.1g using electronic balance scale and is incited somebody to action with a certain amount of 80 DEG C of distilled water
It is dissolved, and fuchsin solution after completely dissolution is filtered and is cooled down, is cooled to room temperature；
S4, prepare Fuchsin Sodium Sulfite, be added in the fuchsin solution prepared into S3 10ml 10% sodium sulfite solution and
The concentrated sulfuric acid of 1ml, is then settled to 100ml；
S5, it takes the formaldehyde standard solution prepared in a certain amount of S1 and is diluted to a certain concentration using deionized water；
S6, the Fuchsin Sodium Sulfite 2.5ml prepared in S4 is taken, and be added into S5 in diluted formalin；
S7, the absorbance change of solution in visible spectrophotometer detection S6 is used；
S8, repeat S5, S6 and S7, and record every time test in Fuchsin Sodium Sulfite sufficiently reacted with formalin after show
The absorbance change of color, to reduce human error.
2. a kind of method for fast detection of formaldehyde based on Fuchsin Sodium Sulfite according to claim 1, feature exist
In in S3, Fuchsin Sodium Sulfite needs to place 1h or more after the completion of preparing, and being still bleached rear can be used.
3. a kind of method for fast detection of formaldehyde based on Fuchsin Sodium Sulfite according to claim 1, feature exist
In in S3, Fuchsin Sodium Sulfite needs ready-to-use.
4. a kind of method for fast detection of formaldehyde based on Fuchsin Sodium Sulfite according to claim 1, feature exist
In in S3, Fuchsin Sodium Sulfite should be placed in refrigerator and save, and shelf lives are expired then unsuitable no more than 14 days
It uses.
5. a kind of method for fast detection of formaldehyde based on Fuchsin Sodium Sulfite according to claim 1, feature exist
In in S5, the formalin concentration after dilution need to be 2 × 10-3Mg/ ml or more.
6. a kind of method for fast detection of formaldehyde based on Fuchsin Sodium Sulfite according to claim 1, feature exist
In in S7, it is seen that the test wavelength of spectrophotometer is 549mm.
7. a kind of method for fast detection of formaldehyde based on Fuchsin Sodium Sulfite according to claim 1, feature exist
In in S7, the color stability time is 40min.
8. a kind of method for fast detection of formaldehyde based on Fuchsin Sodium Sulfite according to claim 1, feature exist
In in S8, replicated experimental units are at least 3 times.
9. the method for fast detection of formaldehyde according to any one of claims 1 to 8 based on Fuchsin Sodium Sulfite also mentions
Gone out a kind of quick methanol detection device based on Fuchsin Sodium Sulfite, which is characterized in that including detection box body (1),
Detection case lid (2), liquid holding device (3), fan (4), sucker (8), fixed link (10), connector (11) and abutting component；
It detects box body (1) bottom and is equipped with non-slip mat (6), outer peripheral surface is obliquely installed supporting element (7)；Supporting element (7) is far from detection
One end of box body (1) and ground face contact；Ventilation opening (9) are additionally provided in detection box body (1)；
Detection case lid (2) is threadedly coupled with detection box body (1), and is equipped with handle (5) at the top of detection case lid (2)；Fan
(4) it is arranged on detection case lid (2) and is located in detection box body (1), and blowing direction is downward；
Fixed link (10) is horizontally set in detection box body (1) and connect with connector (11)；The transverse cutting of connector (11)
Face is annular shape, pushes against component in the interior circular array distribution of connector (11)；
Component is pushed against to include elastic component (12), fixing pipe (13), sliding bar (14), push against part (15) and locating part (16)；It is fixed
Pipe (13) is horizontally set on connector (11)；Sliding bar (14) is plugged and fixed pipe (13) and connect with part (15) are pushed against；Limit
Part (16) is located in fixing pipe (13) and connect with sliding bar (14)；Elastic component (12) setting in the fixing pipe (13) and with limit
Part (16) connection；It pushes against part (15) and resists liquid holding device (3)；
Liquid holding device (3) is opening up and is located at below fan (4), and inside fills fuchsin sulfite detection solution；Sucker (8)
Setting is in liquid holding device (3) bottom and is adsorbed in detection box body (1).
10. a kind of quick methanol detection device based on Fuchsin Sodium Sulfite according to claim 9, feature exist
In non-slip mat (6) is made of rubber material, and surface is equipped with antiskid thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910832082.9A CN110441301B (en) | 2019-09-04 | Rapid formaldehyde detection method and device based on fuchsin sodium sulfite reagent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910832082.9A CN110441301B (en) | 2019-09-04 | Rapid formaldehyde detection method and device based on fuchsin sodium sulfite reagent |
Publications (2)
| Publication Number | Publication Date |
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| CN110441301A true CN110441301A (en) | 2019-11-12 |
| CN110441301B CN110441301B (en) | 2024-04-19 |
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