AU2021103179A4 - Atmospheric Sampling Material and Preparation Method Thereof - Google Patents
Atmospheric Sampling Material and Preparation Method Thereof Download PDFInfo
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- AU2021103179A4 AU2021103179A4 AU2021103179A AU2021103179A AU2021103179A4 AU 2021103179 A4 AU2021103179 A4 AU 2021103179A4 AU 2021103179 A AU2021103179 A AU 2021103179A AU 2021103179 A AU2021103179 A AU 2021103179A AU 2021103179 A4 AU2021103179 A4 AU 2021103179A4
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- 238000005070 sampling Methods 0.000 title claims abstract description 89
- 238000002360 preparation method Methods 0.000 title claims abstract description 17
- 239000000463 material Substances 0.000 title claims abstract description 7
- 238000001179 sorption measurement Methods 0.000 claims abstract description 90
- 239000011347 resin Substances 0.000 claims abstract description 74
- 229920005989 resin Polymers 0.000 claims abstract description 74
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 34
- 229920000570 polyether Polymers 0.000 claims description 34
- 239000002994 raw material Substances 0.000 claims description 27
- 229920002635 polyurethane Polymers 0.000 claims description 16
- 239000004814 polyurethane Substances 0.000 claims description 16
- 238000005187 foaming Methods 0.000 claims description 12
- 239000000725 suspension Substances 0.000 claims description 10
- 239000002245 particle Substances 0.000 claims description 9
- 229920001971 elastomer Polymers 0.000 claims description 7
- 229920000728 polyester Polymers 0.000 claims description 6
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 claims description 4
- 238000002791 soaking Methods 0.000 claims description 3
- 239000000356 contaminant Substances 0.000 description 17
- 238000000034 method Methods 0.000 description 9
- 239000003463 adsorbent Substances 0.000 description 7
- 238000012544 monitoring process Methods 0.000 description 6
- 239000002250 absorbent Substances 0.000 description 5
- 230000002745 absorbent Effects 0.000 description 5
- 239000007787 solid Substances 0.000 description 5
- 239000007789 gas Substances 0.000 description 4
- 229920000742 Cotton Polymers 0.000 description 3
- 230000002708 enhancing effect Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- 229920000459 Nitrile rubber Polymers 0.000 description 2
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 239000013618 particulate matter Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 1
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 239000002156 adsorbate Substances 0.000 description 1
- 238000012863 analytical testing Methods 0.000 description 1
- 238000003556 assay Methods 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000003795 desorption Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 229920001821 foam rubber Polymers 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000011491 glass wool Substances 0.000 description 1
- 229910000040 hydrogen fluoride Inorganic materials 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/2202—Devices for withdrawing samples in the gaseous state involving separation of sample components during sampling
- G01N1/2214—Devices for withdrawing samples in the gaseous state involving separation of sample components during sampling by sorption
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/2273—Atmospheric sampling
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Molecular Biology (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses an atmospheric sampling material and a preparation
method thereof, wherein a sampling material comprises a sponge main body with a
porous structure and macro-porous adsorption resin interconnected to the porous
structure of the sponge main body. In the solution of the invention, by organically
combining the macro-porous adsorption resin with common adsorption sampling
sponge, the sampling adsorption quality of unit volume is improved, and the binding
ability among the sample, the macro-porous adsorption resin and the sponge is
enhanced, so as to avoid drop of the sample or macro-porous adsorption resin during
use, thereby avoiding influencing not only the sampling efficiency, but also the
sampling precision.
Description
Atmospheric Sampling Material and Preparation Method Thereof
The invention relates to an air sampler sampling medium and a
preparation method thereof, in particular to an air sampling sponge and a
preparation method thereof.
An air sampler is an instrument or device that collects air contaminants or
contaminated air. There are various air samplers. According to the collection
object, it can be divided into a gas (including vapor) sampler and a particle
sampler; according to the application place, it can be divided into an
environmental sampler, an indoor sampler (such as a sampler used in a
factory workshop) and a pollution source sampler (such as a chimney). In
addition, there are special-purpose air samplers, such as samplers that collect
gas and particulate matter at the same time, which can collect sulfur dioxide
and particulate matters in the air, or hydrogen fluoride and particulate matter,
etc., to study the relationship between sulfur and fluorine in gaseous and solid
materials. It is generally composed of a collector, a flowmeter and an
aspirating power system.
Air sampling is an important step in air environmental monitoring and has a
great impact on the reliability of monitoring data. There are two main methods
for collecting air samples: one is to make a large amount of air pass through a
liquid absorbent or a solid adsorbent to absorb or retain contaminants, and to
concentrate the contaminants with a lower concentration in the original air,
such as an air-pumping method or a filter membrane method. The results
measured by these methods are average concentration of the air contaminants within the sampling time. The other one is to collect air containing contaminants from containers (glass bottles, plastic bags, rubber bladders, syringes, etc.). This type of method is suitable for situations where the concentration of contaminants in the air is high, or the sensitivity of the assay method is high or contaminated gases and vapors that are not readily absorbed by the liquid absorbent or adsorbed by the solid adsorbent. The result measured by this method is an instantaneous concentration of contaminants in the air or the average concentration within a short time. The liquid absorbent in the sampler is mainly used to absorb gaseous and vaporous substances. Commonly used absorbents are: water, aqueous compound solutions, organic solvents, and the like. The absorbent must be capable of performing rapid chemical reaction with contaminants or can quickly dissolve contaminants and facilitate analysis operation. The solid adsorbent can be a granular adsorbentorafibrousadsorbent. Commonly used granular adsorbents are silica gel, plain ceramics, etc., which are used for sampling gaseous, vapor and particulate matters. The fibrous adsorbents are filter paper, filter membranes, absorbent cotton, glass wool, sponge, etc.
The adsorption mainly achieves physical retention and is used for collecting
particulate matters. Sometimes the adsorbent is first impregnated with a
chemical reagent to cause the contaminants to be adsorbed with it chemically,
and is mainly used for collecting gaseous or vaporous contaminants.
Samples collected from air sampling should be representative. Sampling is
efficient, easy to operate, and easy for subsequent chemical analysis.
Representative factors that affect the samples are the efficiency of the
sampler and the adsorbent, location of sampling points, and interference of the sampler with the gas stream. In recent years, air sampling technology is gradually combined with analytical testing techniques to form a device that can continuously and automatically sample, analyze, and record the measured results. This device can be directly monitored on site, called as a monitoring analyzer.
In the existing sampling technology, in order to improve the sampling
efficiency and sampling precision, a sampling medium having high adsorption
or distribution to a target compound is usually selected, and the commonly
used sampling medium is improved. For example, if a certain amount of
macro-porous adsorption resin is adhered to the sampling sponge, the
efficiency and effect of sampling adsorption are improved, but in this solution,
the macro-porous adsorption resin is not firmly attached to the sampling
sponge, and it is easily lost with the airflow during the sampling process, so
that the sampling precision is affected; and the technical solution of bonding
the macro-porous adsorption resin to the sponge by using an adhesive agent
may cause uneven adhesion of the macro-porous adsorption resin, easy
accumulation of agglomerates, and easy blockage of macro-porous resin
pores, so that a utilization rate is not high, the operation is difficult, and waste
is easily caused. At the same time, the macro-porous adsorption resin is
unevenly distributed on the whole sponge, so that the volume utilization
efficiency is not high, and the macro-porous adsorption resin needs to be
reprocessed after the sponge is molded, which increases the cost. The
volatile components of a binder can be adsorbed by the macro-porous
adsorption resin to affect normal sampling. Therefore, although these
solutions can improve the sampling efficiency well on the surface, they also increase the fluctuation of the sampling accuracy, so that the accuracy of the air monitoring data is greatly affected.
To solve the above problems, the invention discloses an air sampling
sponge and a preparation method thereof. The sponge is immersed in a
macro-porous adsorption resin suspension, and dried and organically
combined with a common adsorption sampling sponge, thereby not only
improving the sampling adsorption mass of the unit volume, but also
enhancing the binding ability among the sample, the macro-porous resin and
the sponge, and preventing the drop of the sample or macro-porous
adsorption resign during use from affecting sampling efficiency and sampling
accuracy.
The air sampling sponge disclosed in the invention includes a sponge
main body with a porous structure and macro-porous adsorption resin which
is attached to the surface of the porous structure of the sponge main body
and is organically combined with the macro-porous adsorption resin.
According to the solution, the macro-porous adsorption resin with strong
adsorption capacity is precisely combined with the sponge, so that the macro
porous adsorption resin "roots" in the interior of the sponge main body,
thereby making it exert its good adsorption property and effectively improving
the sampling efficiency and sampling quality as well as avoiding being blown
by airflow to affect sampling accuracy.
In an improvement of the air sampling sponge disclosed in the invention,
the macro-porous adsorption resin is uniformly dispersed and consolidated on the surface of the porous structure of the sponge main body and cross-linked to each other.
In an improvement of the air sampling sponge disclosed in the invention,
the macro-porous adsorption resin is uniformly organically bonded to the
inside of the porous structure of the sponge main body.
In the present solution, the macro-porous adsorption resin is crossed
linked with the sponge main body, thereby improving the utilization efficiency
thereof, and facilitating the regeneration of the macro-porous adsorption resin
as well as the desorption and detection of the adsorbate in the later use.
In an improvement of the air sampling sponge disclosed in the invention,
the mass of the macro-porous adsorption resin on the sponge main body is
0.1-10% of the mass of the sponge main body.
An improvement of the air sampling sponge disclosed in the invention,
the macro-porous adsorption resin has a particle size from 1 pm to 2 mm.
An improvement of the air sampling sponge disclosed in the invention is
that the sponge main body is made of foam rubber or polyether polyurethane
or polyester polyurethane.
The preparation method of the air sampling sponge disclosed by the
invention includes at least foaming the raw material of the sponge main body,
soaking the sponge in the macro-porous adsorption resin suspension, and
organically combining the sponge main body which is solidified until foaming
and the macro-porous adsorption resin.
The solution avoids clogging of the porous structures in the form of gluing
by means of immersion.
According to the solution, the macro-porous adsorption resin with strong
adsorption capacity is tightly combined with the adsorption sponge, thereby
exerting its excellent adsorption property and effectively improving the
sampling efficiency and the accuracy of the sampling quality.
The invention discloses an improvement of the preparation method of the
air sampling sponge, where the raw material is a foamed rubber raw material
or a foamed polyether polyurethane raw material or a foamed polyester
polyurethane raw material.
An improvement in the preparation method for the air sampling sponge
disclosed in the invention is that the adhesion mass of the macro-porous
adsorption resin on the sponge main body is 0.1-10% of the mass of the
sponge main body.
An improvement in the preparation method for the air sampling sponge
disclosed in the invention is that the macro-porous adsorption resin has a
particle size from 1 pm to 2 mm.
The invention discloses an air sampling sponge and a preparation
method thereof, which, by organically combining a macro-porous adsorption
resin with a common adsorption sampling sponge, enhances the sampling
ability of the sampling sponge by the high adsorption property of the macro
porous adsorption resin, thereby enhancing the air sampling target, and
improving sampling accuracy and sampling efficiency; the pore size and type
of macro-porous resin are controlled to achieve selective adsorption of
different contaminants (such as the size of suspended solids, the choice of
contaminant types or even the choice of specific contaminants), thereby not
only increasing the sampling adsorption mass and adsorption efficiency per unit volume, but also enhancing the binding ability among the target sample
(contaminant), the macro-porous adsorption resin and the sponge, and
preventing the drop of the sample or macro-porous adsorption resign during
use from affecting sampling efficiency and sampling accuracy.
The invention will be further clarified by the following detailed description
of the invention, and it is understood that the invention is not intended to limit
the scope of the invention.
In the solution of the present invention, the sponge main body includes,
but not limited to, a macro-porous sponge or a fine-pore sponge (various
rubber sponges, polyurethane sponges, polyether sponges, etc.)
Example 1
In the example, the air sampling sponge, the sponge main body with the
porous structure and the porous structure of the sponge main body are cross
linked together with the macro-porous adsorption resin, including but not
limited to a condition that all or part of the macro-porous adsorption resin is
distributed over all or part of the surface of the porous structure of the sponge
body.
The air sampling sponge of the example includes a sponge body with a
porous structure and a macro-porous adsorption resin which is organically
combined with the porous structure of the sponge body.
Different from the above example, the adhesion mass of the macro
porous adsorption resin on the sponge body is 0.1% of the mass of the
sponge body (the ratio of the mass of the macro-porous adsorption resin to
the mass of the sponge body may include, but not limited to any of the following: 0.2%, 0.3%, 0.4%, 0.5%, 0.6%, 0.7%, 0.8%, 0.9%, 1.0%, 1.1%,
1.2%, 1.3%, 1.4%, 1.5%, 1.6%, 1.7%, 1.8%, 1.9%, 2.0%, 2.1%, 2.2%, 2.3%,
2.4%, 2.5%, 2.6%, 2.7%, 2.8%, 2.9%, 3.0%, 3.1%, 3.2%, 3.3%, 3.4%, 3.5%,
3.6%, 3.7%, 3.8%, 3.9%, 4.0%, 4.1%, 4.2%, 4.3%, 4.4%, 4.5%, 4.6%, 4.7%,
4.8%, 4.9%, 5.0%, 5.1%, 5.2 %, 5.3%, 5.4%, 5.5%, 5.6%, 5.7%, 5.8%, 5.9%,
6.0%, 6.1%, 6.2%, 6.3%, 6.4%, 6.5%, 6.6%, 6.7%, 6.8%, 6.9%, 7.0%, 7.1%,
7.2%, 7.3%, 7.4%, 7.5%, 7.6%, 7.7%, 7.8%, 7.9%, 8.0%, 8.1%, 8.2%, 8.3%,
8.4%, 8.5%, 8.6%, 8.7%, 8.8%, 8.9 %, 9.0%, 9.1%, 9.2%, 9.3%, 9.4%, 9.5%,
9.6%, 9.7%, 9.8%, 9.9%, 10.0%, and any value in the range of 0.1-10%).
Different from the above example, the macro-porous adsorption resin has
a particle diameter of 1 pm (the particle diameter of the macro-porous
adsorption resin may also include, but not limited to, any of the following: 1
pm, 2 pm, 3 pm, 4 pm, 5 pm, 6 pm, 7 pm, 8 pm, 9 pm, 10 pm, 20 pm, 30 pm,
pm, 50 pm, 60 pm, 70 pm, 80 pm, 90 pm, 100 pm, 110 pm, 120 pm, 130
pm , 140 pm, 150 pm, 160 pm, 170 pm, 180 pm, 190 pm, 200 pm, 210 pm,
220 pm, 230 pm, 240 pm, 250 pm, 260 pm, 270 pm, 280 pm, 290 pm, 300
pm, 310 pm, 320 pm, 330 pm, 340 pm, 350 pm, 360 pm, 370 pm, 380 pm,
390 pm, 400 pm, 410 pm, 420 pm, 430 pm, 440 pm, 450 pm, 460 pm, 470
pm, 480 pm, 490 pm, 500 pm, 510 pm, 520 pm, 530 pm, 540 pm, 550 pm,
560 pm, 570 pm, 580 pm, 590 pm, 600 pm, 610 pm, 620 pm, 630 pm , 640
pm, 650 pm, 660 pm, 670 pm, 680 pm, 690 pm, 700 pm, 710 pm, 720 pm,
730 pm, 740 pm, 750 pm, 760 pm, 770 pm, 780 pm, 790 pm, 800 pm, 810
pm, 820 pm, 830 pm, 840 pm, 850 pm, 860 pm, 870 pm, 880 pm, 890 pm,
900 pm, 910 pm, 920 pm, 930 pm, 940 pm, 950 pm, 960 pm, 970 pm, 980 pm, 990 pm, 1 mm, 1.1 pm, 1.2 pm, 1.3 pm, 1.4 pm, 1.5 pm, 1.6 pm, 1.7 pm,
1.8 pm, 1.9 pm, 2.0 pm, and any other value in the range of 1 pm to 2 mm).
Different from the above example, the sponge body is made of foam
rubber or polyether urethane or polyester polyurethane, including, but not
limited to, polyurethane sponge, polyether 330n, polyether 4110, polyether f6,
Polyether f68, polyether 220, polyether 164, polyether 161, polyether 210,
combined polyether, polyether 1-62, polyether 403, nitrile rubber cotton, and
the like.
Preparation example
The preparation method of the air sampling sponge of the example
includes at least foaming the raw materials of the sponge main body, soaking
the sponge in the macro-porous adsorption resin suspension, organically
combining the sponge main body which is solidified until foaming and the
macro-porous adsorption resin, and drying to obtain the product.
Different from the above example, the raw material is a foamed rubber
raw material or a foamed polyether urethane raw material or a foamed
polyester polyurethane raw material, such as, including, but not limited to, a
polyurethane sponge raw material, a polyether 330n raw material, and a
polyether 4110 raw material, polyether f6 raw material, polyether f68 raw
material, polyether 220 raw material, polyether 164 raw material, polyether 161
raw material, polyether 210 raw material, combined polyether raw material,
polyether 1-62 raw material, polyether 403 raw material , nitrile rubber cotton
raw material, etc.
Different from the above example, the adhesion mass of the macro
porous adsorption resin on the sponge body is 0.1% of the mass of the sponge body (the ratio of the adhesion mass of the macro-porous adsorption resin on the sponge body to the mass of the sponge body includes, but not limited to, any of the following: 0.2%, 0.3%, 0.4%, 0.5%, 0.6%, 0.7%, 0.8%,
0.9%, 1.0%, 1.1%, 1.2%, 1.3%, 1.4%, 1.5%, 1.6%, 1.7%, 1.8%, 1.9%, 2.0%,
2.1%, 2.2%, 2.3%, 2.4%, 2.5%, 2.6%, 2.7%, 2.8%, 2.9%, 3.0%, 3.1%, 3.2%,
3.3% 3.4%, 3.5%, 3.6%, 3.7%, 3.8%, 3.9%, 4.0%, 4.1%, 4.2%, 4.3%, 4.4%,
4.5%, 4.6%, 4.7%, 4.8%, 4.9%, 5.0 %, 5.1%, 5.2%, 5.3%, 5.4%, 5.5%, 5.6%,
5.7%, 5.8%, 5.9%, 6.0%, 6.1%, 6.2%, 6.3%, 6.4%, 6.5%, 6.6%, 6.7%, 6.8%,
6.9%, 7.0%, 7.1%, 7.2%, 7.3%, 7.4%, 7.5%, 7.6%, 7.7%, 7.8%, 7.9%, 8.0%,
8.1%, 8.2%, 8.3%, 8.4%, 8.5%, 8.6 %, 8.7%, 8.8%, 8.9%, 9.0%, 9.1%, 9.2%,
9.3%, 9.4%, 9.5%, 9.6%, 9.7%, 9.8%, 9.9%, 10.0%, and any value in the
range of 0.1-10%).
Different from the above example, the macro-porous adsorption resin has
a particle diameter of 1 pm (the particle diameter of the macro-porous
adsorption resin may also include, but not limited to, any of the following: 1
pm, 2 pm, 3 pm, 4 pm, 5 pm, 6 pm, 7 pm, 8 pm, 9 pm, 10 pm, 20 pm, 30 pm,
pm, 50 pm, 60 pm, 70 pm, 80 pm, 90 pm, 100 pm, 110 pm, 120 pm, 130
pm, 140 pm, 150 pm, 160 pm, 170 pm, 180 pm, 190 pm, 200 pm, 210 pm,
220 pm, 230 pm, 240 pm, 250 pm, 260 pm, 270 pm, 280 pm, 290 pm, 300
pm, 310 pm, 320 pm, 330 pm, 340 pm, 350 pm, 360 pm, 370 pm, 380 pm,
390 pm, 400 pm, 410 pm, 420 pm, 430 pm, 440 pm, 450 pm, 460 pm, 470
pm, 480 pm, 490 pm, 500 pm, 510 pm, 520 pm, 530 pm, 540 pm, 550 pm,
560 pm, 570 pm, 580 pm, 590 pm, 600 pm, 610 pm, 620 pm, 630 pm, 640
pm, 650 pm, 660 pm, 670 pm, 680 pm, 69 pm, 700 pm, 710 pm, 720 pm, 730
pm, 740 pm, 750 pm, 760 pm, 770 pm, 780 pm, 790 pm, 800 pm, 810 pm,
820 pm, 830 pm, 840 pm, 850 pm, 860 pm, 870 pm, 880 pm, 890 pm, 900
pm, 910 pm, 920 pm, 930 pm, 940 pm, 950 pm, 960 pm, 970 pm, 980 pm,
990 pm, 1 mm, 1.1 pm, 1.2 pm, 1.3 pm, 1.4 pm, 1.5 pm, 1.6 pm, 1.7 pm, 1.8
pm, 1.9 pm, 2.0 pm, and any other value in the range of 1 pm to 2 mm).
Comparison case group 1
In Solution 1, a polyether 161 ordinary sponge (black sponge) is used for
atmospheric sampling.
In Solution 2, polyether 161 ordinary sponge (black sponge) is used,
macro-porous adsorption resin, mass of which is 0.25% of the mass of the
sponge main body, is directly shaken off and attached to the sponge for
atmospheric sampling.
In Solution 3, polyether 161 ordinary sponge (black sponge) is used,
macro-porous adsorption resin, mass of which is 0.25% of the mass of the
sponge main body, is immersed in the macro-porous adsorption resin
suspension, and the sponge main body which is solidified until foaming is
organically combined with the macro-porous adsorption resin for being put on
the sponge together and then dried for atmospheric sampling.
In Solution 4, polyether 161 ordinary sponge (black sponge) is used,
macro-porous adsorption resin, mass of which is 2.5% of the mass of the
sponge main body, is immersed in the macro-porous adsorption resin
suspension, and the sponge main body which is solidified until foaming is
organically combined with the macro-porous adsorption resin for being put on
the sponge together and then dried for atmospheric sampling.
In Solution 5, polyether 161 ordinary sponge (black sponge) is used,
macro-porous adsorption resin, mass of which is 5.0% of the mass of the sponge main body, is immersed in the macro-porous adsorption resin suspension, and the sponge main body which is solidified until foaming is organically combined with the macro-porous adsorption resin for being put on the sponge together and then dried for atmospheric sampling.
Through the above five solutions, each solution is repeated 5 times at the
same sampling point, and the target contaminants (for example, PM2.5) are
sampled in Beilun District, Ningbo City for 5 hours, and the average variance
of the monitoring results of the 5 solutions are 7.2, 29, 4.4, 5.2, and 4.5,
respectively, and the percentage of sampling results of Solution 1, and the
results of Solutions 2, 3, 4, and 5 are 97.5%, 106.2%, 112.7%, and 114.4%,
respectively.
Comparison case group 2
In solution 1, a polyurethane sponge (white or yellow sponge) is used for
atmospheric sampling.
In solution 2, a polyurethane sponge (white or yellow sponge) is used,
and macro-porous adsorption resin, mass of which is 0.25% of the mass of
the sponge main body, is directly and uniformly shaken off onto the sponge
before sampling for atmospheric sampling.
In solution 3, a polyurethane sponge (white or yellow sponge) is used,
and macro-porous adsorption resin, mass of which is 0.25% of the mass of
the sponge main body, is immersed in the macro-porous adsorption resin
suspension, and the sponge main body which is solidified until foaming is
organically combined with the macro-porous adsorption resin for being put on
the sponge together and then dried for atmospheric sampling.
In solution 4, a polyurethane sponge (white or yellow sponge) is used,
and macro-porous adsorption resin, mass of which is 2.5% of the mass of the
sponge main body, is immersed in the macro-porous adsorption resin
suspension, and the sponge main body which is solidified until foaming is
organically combined with the macro-porous adsorption resin for being put on
the sponge together and then dried for atmospheric sampling.
In solution 5, a polyurethane sponge (white or yellow sponge) is used,
and macro-porous adsorption resin, mass of which is 5.0% of the mass of the
sponge main body, is immersed in the macro-porous adsorption resin
suspension, and the sponge main body which is solidified until foaming is
organically combined with the macro-porous adsorption resin for being put on
the sponge together and then dried for atmospheric sampling.
Through the above five solutions, each solution is repeated 5 times at the
same sampling point, and the target contaminants (for example, PM2.5) are
sampled in Beilun District, Ningbo City for 5 hours, and the average variance
of the monitoring results of the 5 solutions are 7.9, 30.6, 5.1, 5.3, and 4.7,
respectively, and the percentage of sampling results of Solution 1, and the
results of Solutions 2, 3, 4, and 5 are 101.5%, 107.4%, 113.8%, and 116.5%,
respectively.
It can be seen from the above comparison that the solution of the
invention has better stability and high precision in the air sampling, thus
achieving good repeatability, and obviously improving the sampling efficiency.
The novel technical solutions formed by the invention in the technical
scope of the invention, which are not exhaustive in point and the equivalent
replacement of single or multiple technical features in the comparative technical solution, are also claimed in the invention. In the range of all the enumerated or unexemplified examples of the invention, the various parameters in the same example merely represent one example of the technical solution (ie, a feasible solution), and there is not a strict cooperation and a defined relationship among the parameters, wherein each parameter can be replaced with each other without deviating from the axiom and the description of the invention, unless specifically stated.
The technical means disclosed in the solution of the invention are not
limited to the technical means disclosed by the above technical means, and
include a technical solution composed of any combination of the above
technical features. The above is a specific example of the invention, and it
should be noted that those or ordinary technicians in the art can also make
several improvements and retouchings without departing from the principles
of the invention. These improvements and retouchings are also considered as
the protection range of the invention.
Claims (9)
1. An atmospheric sampling material, comprising a sponge main body
with a porous structure and macro-porous adsorption resin interconnected to
the porous structure of the sponge main body.
2. The air sampling sponge according to claim 1, wherein the macro
porous adsorption resin is uniformly dispersed and consolidated on the
surface of the porous structure of the sponge main body and cross-linked to
each other.
3. The air sampling sponge according to claim 1 or 2, wherein the
adhesion mass of the macro-porous adsorption resin on the sponge main
body is 0.1-10% of the mass of the sponge main body.
4. The air sampling sponge according to claim 1 or 2, wherein the macro
porous adsorption resin has a particle size from 1 pm to 2 mm.
5. The air sampling sponge according to claim 1, wherein the sponge
main body is made of foamed rubber or polyether urethane or polyester
polyurethane.
6. A preparation method for the air sampling sponge, comprising at least
foaming the raw material of the sponge main body, soaking the sponge in the
macro-porous adsorption resin suspension, and adhering the macro-porous
adsorption resin into the sponge main body which is solidified until foaming to
cross-link to each other.
7. The preparation method for the air sampling sponge according to claim
6, wherein the raw material is a foamed rubber raw material or a foamed
polyether urethane raw material or a foamed polyester polyurethane raw
material.
8. The preparation method for the air sampling sponge according to claim
6, wherein the adhesion mass of the macro-porous adsorption resin on the
sponge main body is 0.1-10% of the mass of the sponge main body.
9. The preparation method for the air sampling sponge according to claim
6 or 8, wherein the macro-porous adsorption resin has a particle size from 1
pm to 2 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2021103179A AU2021103179A4 (en) | 2021-06-08 | 2021-06-08 | Atmospheric Sampling Material and Preparation Method Thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2021103179A AU2021103179A4 (en) | 2021-06-08 | 2021-06-08 | Atmospheric Sampling Material and Preparation Method Thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AU2021103179A4 true AU2021103179A4 (en) | 2021-07-22 |
Family
ID=76860493
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU2021103179A Ceased AU2021103179A4 (en) | 2021-06-08 | 2021-06-08 | Atmospheric Sampling Material and Preparation Method Thereof |
Country Status (1)
| Country | Link |
|---|---|
| AU (1) | AU2021103179A4 (en) |
-
2021
- 2021-06-08 AU AU2021103179A patent/AU2021103179A4/en not_active Ceased
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