CN105424693A - Rapid detection reagent for formaldehyde - Google Patents
Rapid detection reagent for formaldehyde Download PDFInfo
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- CN105424693A CN105424693A CN201510946395.9A CN201510946395A CN105424693A CN 105424693 A CN105424693 A CN 105424693A CN 201510946395 A CN201510946395 A CN 201510946395A CN 105424693 A CN105424693 A CN 105424693A
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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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Abstract
The invention discloses a rapid detection reagent for formaldehyde. The rapid detection reagent comprises composition in percentage by weight as follows: 1.5%-3.5% of potassium periodate, 3.6%-4.2% of orthophenanthroline, 2.2%-5.2% of sodium sulfate, 1.5%-2.5% of petroleum ether, 2.5%-3.5% of citric acid, 0.6%-2.6% of a phenol reagent, 1.2%-3.2% of acetylacetone and the balance of distilled water. According to the rapid detection reagent for the formaldehyde, a novel formula combination is adopted, on one hand, the formaldehyde test sensitivity is improved, reaction is rapid, on the other hand, interference caused by acetaldehyde and propionaldehyde in an environment on a test result is reduced, so that the rapid detection reagent has the characteristics of high reaction speed, high sensitivity and good stability, meanwhile, the test result is more accurate, and the rapid detection reagent can be applied to detection of the formaldehyde in various environments.
Description
Technical field
The present invention relates to a kind of formaldehyde quick detection reagent.
Background technology
At present, along with the fast development of industrial technology, Sudden Pollution Accident constantly increases, and threatens human health, saboteur's ecologic environment, seriously governs the ecologic equilibrium and society, expanding economy.Take precautions against abrupt polluting accident problem demanding prompt solution a lot, top priority sets up monitoring method for emergency technology, once contamination accident occurs, can drop into monitoring rapidly, contamination data is accurately provided, for antipollution diffusion and take counter-measure to provide scientific basis within the shortest time.Therefore, extremely strong for Time and place characteristic, the significant Sudden Pollution Accident of random variation, Site Detection obtain in time and the accurate perfect answer of answer comparatively accurately comes too late than one test in laboratory is valuable many.In-situ check and test method normally detects in real time in workplace, namely records in sample whether there is test substance and concentration thereof at short notice.It is few that method for Site Detection needs sampling quantity, and possess higher accuracy and sensitivity, the feature such as the instrument fast, to use easy and simple to handle is easy to carry.In-situ check and test method comparatively ripe at present has test paper method, detects tube method, miniature LHD units, Bioexperiment method, portable instrument method etc.
Formaldehyde is a kind of colourless, has the gas of intense stimulus, has volatile characteristic.Formaldehyde is one of major pollutants of indoor environment, is defined as carcinogenic and teratogenesis material by the World Health Organization (WHO).World Health Organization (WHO) the regulation safe concentration be exposed in formaldehyde in 30 minutes is 80ppb, the formaldehyde exposure concentration that Occupational Safety and Health Administration of the U.S. (OSHA) regulation allows is 750ppb, and extreme danger concentration (IDLH) is 20ppm.The formaldehyde sucking high concentration there will be serious stimulation and oedema, eye shouting pain and the headache of respiratory tract.The formaldehyde of Long Term Contact low concentration can cause slow poisoning, causes dizzy weak, neurasthenia, mental depression and chronic respiratory disease etc.The harm of formaldehyde to infant and pregnant woman is more serious, can cause the serious consequence such as fetal anomaly and miscarriage.
Formaldehyde is widely used in the production of bonding agent in constructional ornamental material, in recent years along with the use of artificial board, furniture and various finishing material in interior decoration, finishing terminates rear formaldehyde that is residual and resin decomposition can Environment release towards periphery slowly, formaldehyde content in indoor air is caused to exceed standard, this process is 5 to 10 years, therefore very important to the detection of Formaldehyde in Environment, the injury brought in case Formaldehyde in Environment exceeds standard.
Summary of the invention
The defect that the present invention seeks to exist for prior art provides a kind of formaldehyde quick detection reagent.
The present invention for achieving the above object, adopts following technical scheme: a kind of formaldehyde quick detection reagent, comprises the composition of following percentage by weight:
Further, the composition of following percentage by weight is comprised:
Further, the composition of following percentage by weight is comprised:
Further, the composition of following percentage by weight is comprised:
Further, the concentration of described sherwood oil is greater than 92% (percentage by weight), and the concentration of described citric acid is greater than 93% (percentage by weight); The concentration of described phenol reagent is greater than 94% (percentage by weight); The concentration of described diacetone is greater than 95% (percentage by weight).
Beneficial effect of the present invention: formaldehyde quick detection reagent provided by the invention, employing new formulation combines, the sensitivity that improve PARA FORMALDEHYDE PRILLS(91,95) test on the one hand, and be swift in response, be reduction of acetaldehyde in environment, propionic aldehyde to the interference of test result on the other hand, therefore formaldehyde testing reagent provided by the invention has the feature of fast, the highly sensitive and good stability of reaction velocity, and test result is comparatively accurate simultaneously, can be used in various environment formaldehyde examination.
Embodiment
Embodiment 1:
A kind of formaldehyde quick detection reagent, comprises the composition of following percentage by weight:
The preparation method of above-mentioned quick detection reagent, comprises the steps:
(1) by mass percent be 1.5% potassium metaperiodate and mass percent be 3.6% Phen join successively and be equipped with in the reactor of distilled water, and stir, the speed stirred is 40 revs/min, mixing time is 5 minutes, whipping temp is 10 DEG C, then obtains acid solution;
(2) by mass percent be 2.2% sodium sulphate join in above-mentioned acid solution, after treating to dissolve completely, add mass percent be 1.5% sherwood oil, mass percent be the citric acid of 2.5%, stir, the speed stirred is 50 revs/min, mixing time is 6 minutes, and whipping temp is 5 DEG C, makes solution be translucent;
(3) finally add successively mass percent be 0.6% phenol reagent and mass percent be the diacetone of 1.2%, continuous stirring, the speed of stirring is 30 revs/min, and mixing time is 5 minutes, whipping temp is 15 DEG C, namely obtains formaldehyde quick detection reagent after mixing.
Embodiment 2:
A kind of formaldehyde quick detection reagent, comprises the composition of following percentage by weight:
The preparation method of above-mentioned quick detection reagent, comprises the steps:
(1) by mass percent be 2.5% potassium metaperiodate and mass percent be 3.9% Phen join successively and be equipped with in the reactor of distilled water, and stir, the speed stirred is 45 revs/min, mixing time is 6 minutes, whipping temp is 11 DEG C, then obtains acid solution;
(2) by mass percent be 3.5% sodium sulphate join in above-mentioned acid solution, after treating to dissolve completely, add mass percent be 2.0% sherwood oil, mass percent be the citric acid of 3.0%, stir, the speed stirred is 55 revs/min, mixing time is 7 minutes, and whipping temp is 6 DEG C, makes solution be translucent;
(3) finally add successively mass percent be 1.6% phenol reagent and mass percent be the diacetone of 2.2%, continuous stirring, the speed of stirring is 35 revs/min, and mixing time is 6 minutes, whipping temp is 16 DEG C, namely obtains formaldehyde quick detection reagent after mixing.
Embodiment 3:
A kind of formaldehyde quick detection reagent, comprises the composition of following percentage by weight:
The preparation method of above-mentioned quick detection reagent, comprises the steps:
(1) by mass percent be 3.5% potassium metaperiodate and mass percent be 4.2% Phen join successively and be equipped with in the reactor of distilled water, and stir, the speed stirred is 50 revs/min, mixing time is 7 minutes, whipping temp is 12 DEG C, then obtains acid solution;
(2) by mass percent be 5.2% sodium sulphate join in above-mentioned acid solution, after treating to dissolve completely, add mass percent be 2.5% sherwood oil, mass percent be the citric acid of 3.5%, stir, the speed stirred is 60 revs/min, mixing time is 8 minutes, and whipping temp is 7 DEG C, makes solution be translucent;
(3) finally add successively mass percent be 2.6% phenol reagent and mass percent be the diacetone of 3.2%, continuous stirring, the speed of stirring is 38 revs/min, and mixing time is 7 minutes, whipping temp is 18 DEG C, namely obtains formaldehyde quick detection reagent after mixing.
In above-described embodiment, the concentration of described sherwood oil is greater than 92% (percentage by weight), and the concentration of described citric acid is greater than 93% (percentage by weight).
When mentioned reagent is tested, first gas to be measured is collected, gas to be measured is passed in the beaker that formaldehyde quick detection reagent is housed, beaker is heated 20-40 DEG C, leave standstill 20-60 minute, observation color changes, if color changes, prove that in gas to be measured, concentration of formaldehyde is higher than national normal value 0.08mg/m3, it is larger that color illustrates that content of formaldehyde exceeds standard more deeply.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (5)
1. a formaldehyde quick detection reagent, is characterized in that, comprises the composition of following percentage by weight:
All the other are distilled water.
2. a kind of formaldehyde quick detection reagent as claimed in claim 1, is characterized in that, comprise the composition of following percentage by weight:
All the other are distilled water.
3. a kind of formaldehyde quick detection reagent as claimed in claim 1, is characterized in that, comprise the group of following percentage by weight
All the other are distilled water.
4. a kind of formaldehyde quick detection reagent as claimed in claim 1, is characterized in that, comprise the composition of following percentage by weight:
All the other are distilled water.
5. a kind of formaldehyde quick detection reagent as claimed in claim 1, is characterized in that, the concentration of described sherwood oil is greater than 92% (percentage by weight), and the concentration of described citric acid is greater than 93% (percentage by weight); The concentration of described phenol reagent is greater than 94% (percentage by weight); The concentration of described diacetone is greater than 95% (percentage by weight).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510946395.9A CN105424693A (en) | 2015-12-16 | 2015-12-16 | Rapid detection reagent for formaldehyde |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510946395.9A CN105424693A (en) | 2015-12-16 | 2015-12-16 | Rapid detection reagent for formaldehyde |
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| CN105424693A true CN105424693A (en) | 2016-03-23 |
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| CN201510946395.9A Pending CN105424693A (en) | 2015-12-16 | 2015-12-16 | Rapid detection reagent for formaldehyde |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108287159A (en) * | 2018-02-08 | 2018-07-17 | 朱佳琪 | A kind of chemical reagent and preparation method thereof for formaldehyde in food detection |
| CN109187525A (en) * | 2018-09-19 | 2019-01-11 | 海安嘉臣环境科技有限公司 | A kind of formaldehyde testing reagent and its application |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201754147U (en) * | 2010-08-09 | 2011-03-02 | 王晓晨 | Indoor formaldehyde content detector |
| CN103399010A (en) * | 2013-08-28 | 2013-11-20 | 烟台迪康环境科技有限公司 | Manufacturing method of color-changeable formaldehyde detection board |
| CN103529027A (en) * | 2013-10-23 | 2014-01-22 | 西安科技大学 | Formaldehyde color developing material |
| 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 |
-
2015
- 2015-12-16 CN CN201510946395.9A patent/CN105424693A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201754147U (en) * | 2010-08-09 | 2011-03-02 | 王晓晨 | Indoor formaldehyde content detector |
| CN103399010A (en) * | 2013-08-28 | 2013-11-20 | 烟台迪康环境科技有限公司 | Manufacturing method of color-changeable formaldehyde detection board |
| CN103529027A (en) * | 2013-10-23 | 2014-01-22 | 西安科技大学 | Formaldehyde color developing material |
| 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 |
Non-Patent Citations (2)
| Title |
|---|
| 国家技术监督局、中华人民共和国卫生部: "《中华人民共和国国家标准》", 10 February 2011 * |
| 孙静等: "高效液相色谱法测定水中甲醛", 《中国环境监测》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108287159A (en) * | 2018-02-08 | 2018-07-17 | 朱佳琪 | A kind of chemical reagent and preparation method thereof for formaldehyde in food detection |
| CN109187525A (en) * | 2018-09-19 | 2019-01-11 | 海安嘉臣环境科技有限公司 | A kind of formaldehyde testing reagent and its application |
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