CN101021516A - Method for in-situ sampling, separating, enriching and quantitative measuring aldehyde matter content in waterbody utilizing measured material diffusion - Google Patents
Method for in-situ sampling, separating, enriching and quantitative measuring aldehyde matter content in waterbody utilizing measured material diffusion Download PDFInfo
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- CN101021516A CN101021516A CNA200710010554XA CN200710010554A CN101021516A CN 101021516 A CN101021516 A CN 101021516A CN A200710010554X A CNA200710010554X A CN A200710010554XA CN 200710010554 A CN200710010554 A CN 200710010554A CN 101021516 A CN101021516 A CN 101021516A
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Abstract
A method to sample in situ, separate, enrich and quantitatively measure aldehyde substance content in waters by diffusing of detected substance. Its steps are: (1) Puts some high-molecular compound being capable of occurring chemical reaction with aldehyde substance into device and uses a semi-permeable membrane being able to permeate aldehyde substance to cover it, forms enrich device for sampling and diffusing. (2) Sets device in waters containing aldehyde pollution or substance for 10min-240h. (3) Takes out device to measure aldehyde content in solution by visual spectrometry, high-efficient liquid chromatography or gas chromatography. It has merits of simple, economical, having selectivity, providing concentration and measurement in situ for aldehyde substance in waters, quantitative measurement and dynamics of combined detected substance relates to characteristics of semi-permeable membrane.
Description
Technical field
The invention belongs to chemistry and environmental monitoring technology field, particularly a kind of method of utilizing measured matter diffusion carrying out aldehyde matter content in in-situ sampling, separation, enrichment and the quantitative measurment water body
Background technology
People are depended on the level of environmental analysis monitoring to a great extent to the cognition of environment.Environmental analysis detects and to be related to the obtaining of environmental exact details value, the assessment of environmental pollution degree, the analysis of related results of environmental improvement, the formulation and the execution of environmental planning.Different with conventional analysis, environmental analysis is had higher requirement to sample collecting, and sample is wanted representative and validity, and sample retention and transportation also can the impact analysis results simultaneously.The Sampling techniques of content of material in the existing monitoring water body all are to analyze after taking out the water body that contains monitored material with container, though this kind method is simple, and non-selectivity and specificity.One of domestic and international at present research focus is exactly that research has selectivity, specificity, simple, easy row, and cheapness is novel sampling method and technology easily.
Summary of the invention
At the problem that prior art exists, the invention provides a kind of method of utilizing measured matter diffusion carrying out aldehyde matter content in in-situ sampling, separation, enrichment and the quantitative measurment water body
The inventive method is mainly utilized the characteristic group generation chemical reaction on monitored material in characteristic group on the macromolecular compound and the extraneous water body or the monitored material, reaches the purpose of in-situ sampling, enrichment and quantitative measurment.
Method of the present invention may further comprise the steps:
1), get a certain amount of can packing in the container of a constant volume with the macromolecular compound of aldehyde material generation chemical reaction, with the semi-permeable diaphragm that can see through aldehyde material container is sealed, make sampling separation and concentration device;
2), device is put into the water body that aldehydes pollutes or contain aldehyde material, be 10min～240h standing time;
3), the withdrawing device content of aldehyde in the interior solution of ultraviolet-visible light spectrometry or high performance liquid chromatography or vapor-phase chromatography measuring vessel.
The inventive method used can with the macromolecular compound of aldehyde material generation chemical reaction, its mean molecular weight should be greater than 3000, its concentration of aqueous solution is 0.0001～1molL
-1This macromolecular compound is polyethyleneimine or polyvinylamine.The used semi-permeable diaphragm that can see through aldehyde material of this method is all kinds semi-permeable diaphragm or selective permeation film, and it allows to see through molecular weight should be not less than 2000.Comprise dialysis membrane, chromatographic paper, dialysis membrane, biological membrane, collodion film, viscose paper, parchment, animal's bladder film etc.
The aldehyde material that can monitor in the inventive method comprises: (1) fatty aldehyde: as formaldehyde, acetaldehyde, acryl aldehyde etc. (2) aromatic aldehyde: as benzaldehyde, salicylide, vanillic aldehyde etc.
Water body described in the inventive method comprises: the water in natural fresh water, natural mineralized water, sewage, potable water, recycle-water, the biosome in water, sediment and the soil.
The used device of the inventive method is the device that a kind of in-situ sampling separates, enrichment is measured, and as shown in drawings: this device is that macromolecular compound is housed in container, with semi-permeable diaphragm it is sealed then, and is fixed by rubber gasket and binding clasp and gets final product.
Material in the solution can be represented by a simple equation:
R-NH
2+R’-CHO→R-N＝CH-R’
In the present invention, macromolecular diffusion may be influenced by semi-permeable diaphragm.But the micromolecule organic compound then can freely spread, and produces an effective coefficient of diffusion, and this and they diffusion in water is as broad as long.Therefore the present invention allows molecular volume freely to spread less than the solable matter in semi-permeable diaphragm duct.The macromolecular compound inner at device separated by semi-permeable diaphragm with tested water body; In water body, place certain hour.Utilize the osmosis of film, after aldehyde material enters into the device inside of tunicle isolation in the water body, immediately with macromolecular compound generation chemical reaction, the concentration of free aldehyde material is always zero in the film before macromolecular compound reaches capacity, thereby inside and outside film, form certain diffusion gradient, within a certain period of time, aldehyde material concentration and relation is arranged standing time in the aldehyde material of film inner macromolecule compound combination and the water body to be measured, medium-term and long-term placement of water body that a monitored material concentration constantly changes, can obtain at this moment between the mean concentration (C of monitored material in the system in (t) scope
m), C
m=C
Sample/ t, C in the formula
SampleFor measuring concentration.Thereby reach the purpose of sampling, separation and enrichment; By measuring the content of aldehyde material in the film inner macromolecule compound, thereby reach the purpose of quantitative measurment.
In the inventive method, contain the macromolecule that can combine with monitored material in the film inboard: its mean molecular weight should be greater than 3000, if the semi-permeable diaphragm hole is little, then used high molecular mean molecular weight can be littler, if the semi-permeable diaphragm hole is big, then used high molecular mean molecular weight should be more greatly, and total principle can only allow monitored material freedom to spread by semi-permeable diaphragm, and can not make the macromolecule of film inboard be penetrated into extraneous aqueous phase.
In the inventive method, the characteristics of used macromolecular compound be they can both with monitored material generation chemical reaction, and firmly combine with monitored material, make that the concentration of free monitored material remains zero in the Polymer Solution of film inboard.
Advantage of the present invention:
(1) simple, economy.
(2) can provide former site concentration.
(3) can measure aldehyde matter content in the water body.
(4) has selectivity.Be not to measure all materials in the nature water, can only measure those can be by the material of enrichment in combination mutually.
(5) quantitative measurment is with relevant in conjunction with the characteristic of the dynamics of monitored material of picked-up mutually and semi-permeable diaphragm.
(6) if a suitable semi-permeable diaphragm thickness is chosen, the transmission of material is only relevant with molecular diffusion, and transmission course of material and fluid dynamics are irrelevant.
Description of drawings
Accompanying drawing is in-situ sampling of the present invention, separation, enrichment, measurement mechanism structural representation.
Among the figure: 1 polytetrafluoroethylcontainer container, 2 macromolecular compound aqueous solution, 3 semi-permeable diaphragms, 4 pads, 5 binding clasps
Embodiment
After getting 2mL 0.0001M polyethyleneimine (PEI) (calculating) volume of packing into and being the polyacrylic mould of 2mL by amido concentration, with dialysis membrane mould is sealed, device is put into the water body that aldehydes pollutes or contain aldehydes, take out after placing 1h, utilize the concentration of ultravioletvisible spectroscopy or high performance liquid chromatography or gas Chromatographic Determination aldehyde material.
After getting 2mL 0.0001M polyethyleneimine (PEI) (calculating) volume of packing into and being the polyacrylic mould of 2mL by amido concentration, with chromatographic paper mould is sealed, device is put into the water body that aldehydes pollutes or contain aldehydes, take out after placing 1h, utilize the concentration of ultravioletvisible spectroscopy or high performance liquid chromatography or gas Chromatographic Determination aldehyde material.
After getting 2mL 0.0001M polyethyleneimine (PEI) (calculating) volume of packing into and being the polyacrylic mould of 2mL by amido concentration, with the collodion film mould is sealed, device is put into the water body that aldehydes pollutes or contain aldehydes, take out after placing 1h, utilize the concentration of ultravioletvisible spectroscopy or high performance liquid chromatography or gas Chromatographic Determination aldehyde material.
Embodiment 4
After getting 2mL 0.01M polyethyleneimine (PEI) (calculating) volume of packing into and being the polyacrylic mould of 2mL by amido concentration, with dialysis membrane mould is sealed, device is put into the water body that aldehydes pollutes or contain aldehydes, take out after placing 12h, utilize the concentration of ultravioletvisible spectroscopy or high performance liquid chromatography or gas Chromatographic Determination aldehyde material, and calculate the mean concentration of aldehydes in the standing time internal water system.
After getting 2mL 0.01M polyethyleneimine (PEI) (calculating) volume of packing into and being the polyacrylic mould of 2mL by amido concentration, with chromatographic paper mould is sealed, device is put into the water body that aldehydes pollutes or contain aldehydes, take out after placing 12h, utilize the concentration of ultravioletvisible spectroscopy or high performance liquid chromatography or gas Chromatographic Determination aldehyde material, and calculate the mean concentration of aldehydes in the standing time internal water system.
Embodiment 6
After getting 2mL 0.01M polyethyleneimine (PEI) (calculating) volume of packing into and being the polyacrylic mould of 2mL by amido concentration, with the collodion film mould is sealed, device is put into the water body that aldehydes pollutes or contain aldehydes, take out after placing 12h, utilize the concentration of ultravioletvisible spectroscopy or high performance liquid chromatography or gas Chromatographic Determination aldehyde material, and calculate the mean concentration of aldehydes in the standing time internal water system.
Embodiment 7
After getting 2mL 0.02M polyethyleneimine (PEI) (calculating) volume of packing into and being the polyacrylic mould of 2mL by amido concentration, with dialysis membrane mould is sealed, device is put into the water body that aldehydes pollutes or contain aldehydes, take out after placing 12h, utilize the concentration of ultravioletvisible spectroscopy or high performance liquid chromatography or gas Chromatographic Determination aldehyde material, and calculate the mean concentration of aldehydes in the standing time internal water system.
Embodiment 8
After getting 2mL 0.02M polyethyleneimine (PEI) (calculating) volume of packing into and being the polyacrylic mould of 2mL by amido concentration, with chromatographic paper mould is sealed, device is put into the water body that aldehydes pollutes or contain aldehydes, take out after placing 12h, utilize the concentration of ultravioletvisible spectroscopy or high performance liquid chromatography or gas Chromatographic Determination aldehyde material, and calculate the mean concentration of aldehydes in the standing time internal water system.
Embodiment 9
After getting 2mL 0.02M polyethyleneimine (PEI) (calculating) volume of packing into and being the polyacrylic mould of 2mL by amido concentration, with the collodion film mould is sealed, device is put into the water body that aldehydes pollutes or contain aldehydes, take out after placing 12h, utilize the concentration of ultravioletvisible spectroscopy or high performance liquid chromatography or gas Chromatographic Determination aldehyde material, and calculate the mean concentration of aldehydes in the standing time internal water system.
Embodiment 10
After getting 2mL 0.02M polyethyleneimine (PEI) (calculating) volume of packing into and being the polyacrylic mould of 2mL by amido concentration, with dialysis membrane mould is sealed, device is put into the water body that aldehydes pollutes or contain aldehydes, take out after placing 24h, utilize the concentration of ultravioletvisible spectroscopy or high performance liquid chromatography or gas Chromatographic Determination aldehyde material, and calculate the mean concentration of aldehydes in the standing time internal water system.
Embodiment 11
After getting 2mL 0.02M polyethyleneimine (PEI) (calculating) volume of packing into and being the polyacrylic mould of 2mL by amido concentration, with chromatographic paper mould is sealed, device is put into the water body that aldehydes pollutes or contain aldehydes, take out after placing 24h, utilize the concentration of ultravioletvisible spectroscopy or high performance liquid chromatography or gas Chromatographic Determination aldehyde material, and calculate the mean concentration of aldehydes in the standing time internal water system.
Embodiment 12
After getting 2mL 0.02M polyethyleneimine (PEI) (calculating) volume of packing into and being the polyacrylic mould of 2mL by amido concentration, with the collodion film mould is sealed, device is put into the water body that aldehydes pollutes or contain aldehydes, take out after placing 24h, utilize the concentration of ultravioletvisible spectroscopy or high performance liquid chromatography or gas Chromatographic Determination aldehyde material, and calculate the mean concentration of aldehydes in the standing time internal water system.
Embodiment 13
After getting 2mL 0.02M polyethyleneimine (PEI) (calculating) volume of packing into and being the polyacrylic mould of 2mL by amido concentration, with dialysis membrane mould is sealed, totally 30, device is put into the water body that aldehydes pollutes or contain aldehydes, place 240h, take out 3 every 24h, utilize the concentration of ultravioletvisible spectroscopy or high performance liquid chromatography or gas Chromatographic Determination aldehyde material, and calculate the mean concentration of aldehydes in the standing time internal water system.
Embodiment 14
After getting 2mL 0.02M polyethyleneimine (PEI) (calculating) volume of packing into and being the polyacrylic mould of 2mL by amido concentration, with chromatographic paper mould is sealed, totally 30, device is put into the water body that aldehydes pollutes or contain aldehydes, place 240h, take out 3 every 24h, utilize the concentration of ultravioletvisible spectroscopy or high performance liquid chromatography or gas Chromatographic Determination aldehyde material, and calculate the mean concentration of aldehydes in the standing time internal water system.
Embodiment 15
After getting 2mL 0.02M polyethyleneimine (PEI) (calculating) volume of packing into and being the polyacrylic mould of 2mL by amido concentration, with the collodion film mould is sealed, totally 30, device is put into the water body that aldehydes pollutes or contain aldehydes, place 240h, take out 3 every 24h, utilize the concentration of ultravioletvisible spectroscopy or high performance liquid chromatography or gas Chromatographic Determination aldehyde material, and calculate the mean concentration of aldehydes in the standing time internal water system.
Embodiment 16
After getting 2mL 0.05M polyethyleneimine (PEI) (calculating) volume of packing into and being the polyacrylic mould of 2mL by amido concentration, with dialysis membrane mould is sealed, totally 30, device is put into the water body that aldehydes pollutes or contain aldehydes, place 240h, take out 3 every 24h, utilize the concentration of ultravioletvisible spectroscopy or high performance liquid chromatography or gas Chromatographic Determination aldehyde material, and calculate the mean concentration of aldehydes in the standing time internal water system.
Embodiment 17
After getting 2mL 0.05M polyethyleneimine (PEI) (calculating) volume of packing into and being the polyacrylic mould of 2mL by amido concentration, with chromatographic paper mould is sealed, totally 30, device is put into the water body that aldehydes pollutes or contain aldehydes, place 240h, take out 3 every 24h, utilize the concentration of ultravioletvisible spectroscopy or high performance liquid chromatography or gas Chromatographic Determination aldehyde material, and calculate the mean concentration of aldehydes in the standing time internal water system.
Embodiment 18
After getting 2mL 0.05M polyethyleneimine (PEI) (calculating) volume of packing into and being the polyacrylic mould of 2mL by amido concentration, with the collodion film mould is sealed, totally 30, device is put into the water body that aldehydes pollutes or contain aldehydes, place 240h, take out 3 every 24h, utilize the concentration of ultravioletvisible spectroscopy or high performance liquid chromatography or gas Chromatographic Determination aldehyde material, and calculate the mean concentration of aldehydes in the standing time internal water system.
Embodiment 19
After getting 2mL0.5M polyethyleneimine (PEI) (calculating) volume of packing into and being the polyacrylic mould of 2mL by amido concentration, with dialysis membrane mould is sealed, totally 20, device is put into the water body that aldehydes pollutes or contain aldehydes, place 240h, take out 2 every 24h, utilize the concentration of ultravioletvisible spectroscopy or high performance liquid chromatography or gas Chromatographic Determination aldehyde material, and calculate the mean concentration of aldehydes in the standing time internal water system.
Embodiment 20
After getting 2mL0.5M polyethyleneimine (PEI) (calculating) volume of packing into and being the polyacrylic mould of 2mL by amido concentration, with chromatographic paper mould is sealed, totally 30, device is put into the water body that aldehydes pollutes or contain aldehydes, place 240h, take out 3 every 24h, utilize the concentration of ultravioletvisible spectroscopy or high performance liquid chromatography or gas Chromatographic Determination aldehyde material, and calculate the mean concentration of aldehydes in the standing time internal water system.
Embodiment 21
After getting 2mL0.5M polyethyleneimine (PEI) (calculating) volume of packing into and being the polyacrylic mould of 2mL by amido concentration, with the collodion film mould is sealed, totally 30, device is put into the water body that aldehydes pollutes or contain aldehydes, place 240h, take out 3 every 24h, utilize the concentration of ultravioletvisible spectroscopy or high performance liquid chromatography or gas Chromatographic Determination aldehyde material, and calculate the mean concentration of aldehydes in the standing time internal water system.
Embodiment 22
After getting 2mL 0.0001M polyvinylamine (calculating) volume of packing into and being the polyacrylic mould of 2mL by amido concentration, with dialysis membrane mould is sealed, device is put into the water body that aldehydes pollutes or contain aldehydes, take out after placing 1h, utilize the concentration of ultravioletvisible spectroscopy or high performance liquid chromatography or gas Chromatographic Determination aldehyde material.
Embodiment 23
After getting 2mL 0.0001M polyvinylamine (calculating) volume of packing into and being the polyacrylic mould of 2mL by amido concentration, with chromatographic paper mould is sealed, device is put into the water body that aldehydes pollutes or contain aldehydes, take out after placing 1h, utilize the concentration of ultravioletvisible spectroscopy or high performance liquid chromatography or gas Chromatographic Determination aldehyde material.
Embodiment 24
After getting 2mL 0.0001M polyvinylamine (calculating) volume of packing into and being the polyacrylic mould of 2mL by amido concentration, with the collodion film mould is sealed, device is put into the water body that aldehydes pollutes or contain aldehydes, take out after placing 1h, utilize the concentration of ultravioletvisible spectroscopy or high performance liquid chromatography or gas Chromatographic Determination aldehyde material.
Embodiment 25
After getting 2mL 0.01M polyvinylamine (calculating) volume of packing into and being the polyacrylic mould of 2mL by amido concentration, with dialysis membrane mould is sealed, device is put into the water body that aldehydes pollutes or contain aldehydes, take out after placing 12h, utilize the concentration of ultravioletvisible spectroscopy or high performance liquid chromatography or gas Chromatographic Determination aldehyde material, and calculate the mean concentration of aldehydes in the standing time internal water system.
Embodiment 26
After getting 2mL 0.01M polyvinylamine (calculating) volume of packing into and being the polyacrylic mould of 2mL by amido concentration, with chromatographic paper mould is sealed, device is put into the water body that aldehydes pollutes or contain aldehydes, take out after placing 12h, utilize the concentration of ultravioletvisible spectroscopy or high performance liquid chromatography or gas Chromatographic Determination aldehyde material, and calculate the mean concentration of aldehydes in the standing time internal water system.
Embodiment 27
After getting 2mL 0.01M polyvinylamine (calculating) volume of packing into and being the polyacrylic mould of 2mL by amido concentration, with the collodion film mould is sealed, device is put into the water body that aldehydes pollutes or contain aldehydes, take out after placing 12h, utilize the concentration of ultravioletvisible spectroscopy or high performance liquid chromatography or gas Chromatographic Determination aldehyde material, and calculate the mean concentration of aldehydes in the standing time internal water system.
Embodiment 28
After getting 2mL 0.02M polyvinylamine (calculating) volume of packing into and being the polyacrylic mould of 2mL by amido concentration, with dialysis membrane mould is sealed, device is put into the water body that aldehydes pollutes or contain aldehydes, take out after placing 12h, utilize the concentration of ultravioletvisible spectroscopy or high performance liquid chromatography or gas Chromatographic Determination aldehyde material, and calculate the mean concentration of aldehydes in the standing time internal water system.
Embodiment 29
After getting 2mL 0.02M polyvinylamine (calculating) volume of packing into and being the polyacrylic mould of 2mL by amido concentration, with chromatographic paper mould is sealed, device is put into the water body that aldehydes pollutes or contain aldehydes, take out after placing 12h, utilize the concentration of ultravioletvisible spectroscopy or high performance liquid chromatography or gas Chromatographic Determination aldehyde material, and calculate the mean concentration of aldehydes in the standing time internal water system.
Embodiment 30
After getting 2mL 0.02M polyvinylamine (calculating) volume of packing into and being the polyacrylic mould of 2mL by amido concentration, with the collodion film mould is sealed, device is put into the water body that aldehydes pollutes or contain aldehydes, take out after placing 12h, utilize the concentration of ultravioletvisible spectroscopy or high performance liquid chromatography or gas Chromatographic Determination aldehyde material, and calculate the mean concentration of aldehydes in the standing time internal water system.
Embodiment 31
After getting 2mL 0.02M polyvinylamine (calculating) volume of packing into and being the polyacrylic mould of 2mL by amido concentration, with dialysis membrane mould is sealed, device is put into the water body that aldehydes pollutes or contain aldehydes, take out after placing 24h, utilize the concentration of ultravioletvisible spectroscopy or high performance liquid chromatography or gas Chromatographic Determination aldehyde material, and calculate the mean concentration of aldehydes in the standing time internal water system.
Embodiment 32
After getting 2mL 0.02M polyvinylamine (calculating) volume of packing into and being the polyacrylic mould of 2mL by amido concentration, with chromatographic paper mould is sealed, device is put into the water body that aldehydes pollutes or contain aldehydes, take out after placing 24h, utilize the concentration of ultravioletvisible spectroscopy or high performance liquid chromatography or gas Chromatographic Determination aldehyde material, and calculate the mean concentration of aldehydes in the standing time internal water system.
Embodiment 33
After getting 2mL 0.02M polyvinylamine (calculating) volume of packing into and being the polyacrylic mould of 2mL by amido concentration, with the collodion film mould is sealed, device is put into the water body that aldehydes pollutes or contain aldehydes, take out after placing 24h, utilize the concentration of ultravioletvisible spectroscopy or high performance liquid chromatography or gas Chromatographic Determination aldehyde material, and calculate the mean concentration of aldehydes in the standing time internal water system.
Embodiment 34
After getting 2mL 0.02M polyvinylamine (calculating) volume of packing into and being the polyacrylic mould of 2mL by amido concentration, with dialysis membrane mould is sealed, totally 30, device is put into the water body that aldehydes pollutes or contain aldehydes, place 240h, take out 3 every 24h, utilize the concentration of ultravioletvisible spectroscopy or high performance liquid chromatography or gas Chromatographic Determination aldehyde material, and calculate the mean concentration of aldehydes in the standing time internal water system.
Embodiment 35
After getting 2mL 0.02M polyvinylamine (calculating) volume of packing into and being the polyacrylic mould of 2mL by amido concentration, with chromatographic paper mould is sealed, totally 30, device is put into the water body that aldehydes pollutes or contain aldehydes, place 240h, take out 2 every 24h, utilize the concentration of ultravioletvisible spectroscopy or high performance liquid chromatography or gas Chromatographic Determination aldehyde material, and calculate the mean concentration of aldehydes in the standing time internal water system.
Embodiment 36
After getting 2mL 0.02M polyvinylamine (calculating) volume of packing into and being the polyacrylic mould of 2mL by amido concentration, with the collodion film mould is sealed, totally 30, device is put into the water body that aldehydes pollutes or contain aldehydes, place 240h, take out 3 every 24h, utilize the concentration of ultravioletvisible spectroscopy or high performance liquid chromatography or gas Chromatographic Determination aldehyde material, and calculate the mean concentration of aldehydes in the standing time internal water system.
Embodiment 37
After getting 2mL 0.05M polyvinylamine (calculating) volume of packing into and being the polyacrylic mould of 2mL by amido concentration, with dialysis membrane mould is sealed, totally 30, device is put into the water body that aldehydes pollutes or contain aldehydes, place 240h, take out 3 every 24h, utilize the concentration of ultravioletvisible spectroscopy or high performance liquid chromatography or gas Chromatographic Determination aldehyde material, and calculate the mean concentration of aldehydes in the standing time internal water system.
Embodiment 38
After getting 2mL 0.05M polyvinylamine (calculating) volume of packing into and being the polyacrylic mould of 2mL by amido concentration, with chromatographic paper mould is sealed, totally 30, device is put into the water body that aldehydes pollutes or contain aldehydes, place 240h, take out 3 every 24h, utilize the concentration of ultravioletvisible spectroscopy or high performance liquid chromatography or gas Chromatographic Determination aldehyde material, and calculate the mean concentration of aldehydes in the standing time internal water system.
Embodiment 39
After getting 2mL 0.05M polyvinylamine (calculating) volume of packing into and being the polyacrylic mould of 2mL by amido concentration, with the collodion film mould is sealed, totally 30, device is put into the water body that aldehydes pollutes or contain aldehydes, place 240h, take out 3 every 24h, utilize the concentration of ultravioletvisible spectroscopy or high performance liquid chromatography or gas Chromatographic Determination aldehyde material, and calculate the mean concentration of aldehydes in the standing time internal water system.
Embodiment 40
After getting 2mL 0.1M polyvinylamine (calculating) volume of packing into and being the polyacrylic mould of 2mL by amido concentration, with dialysis membrane mould is sealed, totally 30, device is put into the water body that aldehydes pollutes or contain aldehydes, place 240h, take out 3 every 24h, utilize the concentration of ultravioletvisible spectroscopy or high performance liquid chromatography or gas Chromatographic Determination aldehyde material, and calculate the mean concentration of aldehydes in the standing time internal water system.
Embodiment 41
After getting 2mL 0.5M polyvinylamine (calculating) volume of packing into and being the polyacrylic mould of 2mL by amido concentration, with chromatographic paper mould is sealed, totally 30, device is put into the water body that aldehydes pollutes or contain aldehydes, place 240h, take out 3 every 24h, utilize the concentration of ultravioletvisible spectroscopy or high performance liquid chromatography or gas Chromatographic Determination aldehyde material, and calculate the mean concentration of aldehydes in the standing time internal water system.
Embodiment 42
After getting 2mL 0.5M polyvinylamine (calculating) volume of packing into and being the polyacrylic mould of 2mL by amido concentration, with the collodion film mould is sealed, totally 30, device is put into the water body that aldehydes pollutes or contain aldehydes, place 240h, take out 3 every 24h, utilize the concentration of ultravioletvisible spectroscopy or high performance liquid chromatography or gas Chromatographic Determination aldehyde material, and calculate the mean concentration of aldehydes in the standing time internal water system.
Claims (7)
1. one kind is utilized measured matter to spread the method for carrying out aldehyde matter content in in-situ sampling, separation, enrichment and the quantitative measurment water body, it is characterized in that this method may further comprise the steps:
1), get a certain amount of can packing in the container of a constant volume with the macromolecular compound of aldehyde material generation chemical reaction, with the semi-permeable diaphragm that can see through aldehyde material container is sealed, make sampling separation and concentration device;
2), device is put into the water body that aldehydes pollutes or contain aldehyde material, be 10min～240h standing time;
3), withdrawing device, the content of aldehyde in the solution in the measuring vessel.
2, the method for utilizing measured matter diffusion carrying out aldehyde matter content in in-situ sampling, separation, enrichment and the quantitative measurment water body as claimed in claim 1, it is characterized in that described can should be greater than 3000 with its mean molecular weight of macromolecular compound of aldehyde material generation chemical reaction, its concentration of aqueous solution is 0.0001～1molL
-1
3, the method for utilizing measured matter diffusion carrying out aldehyde matter content in in-situ sampling, separation, enrichment and the quantitative measurment water body as claimed in claim 2 is characterized in that described macromolecular compound is polyethyleneimine or polyvinylamine.
4, the method for utilizing measured matter diffusion carrying out aldehyde matter content in in-situ sampling, separation, enrichment and the quantitative measurment water body as claimed in claim 1, it is characterized in that the described film that can see through aldehyde material is all kinds semi-permeable diaphragm or selective permeation film, it allows to see through molecular weight should be more than or equal to 2000.
5, the method for utilizing measured matter diffusion carrying out aldehyde matter content in in-situ sampling, separation, enrichment and the quantitative measurment water body as claimed in claim 4 is characterized in that the described semi-permeable diaphragm that can see through aldehyde material comprises dialysis membrane, chromatographic paper, dialysis membrane, biological membrane, collodion film, viscose paper, parchment, animal's bladder film.
6, the method for utilizing measured matter diffusion carrying out aldehyde matter content in in-situ sampling, separation, enrichment and the quantitative measurment water body as claimed in claim 1 is characterized in that described aldehyde material comprises: (1) fatty aldehyde: as formaldehyde, acetaldehyde, acryl aldehyde; (2) aromatic aldehyde: as benzaldehyde, salicylide, vanillic aldehyde.
7, the method for utilizing measured matter diffusion carrying out aldehyde matter content in in-situ sampling, separation, enrichment and the quantitative measurment water body as claimed in claim 1 is characterized in that described water body comprises: the water in natural fresh water, natural mineralized water, sewage, potable water, recycle-water, the biosome in water, sediment and the soil.
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| CN200710010554XA CN101021516B (en) | 2007-03-09 | 2007-03-09 | Method for in-situ sampling, separating, enriching and quantitative measuring aldehyde matter content in waterbody utilizing measured material diffusion |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102221517A (en) * | 2011-04-08 | 2011-10-19 | 中国船舶重工集团公司第七○二研究所 | Ecological desilting diffusion measuring device |
| CN106574917A (en) * | 2014-02-28 | 2017-04-19 | 新加坡国立大学 | An in situ real time monitoring system for trace analytes in water |
| CN110208061A (en) * | 2019-06-21 | 2019-09-06 | 辽宁石油化工大学 | Phenol and make to acquire the method that phenol is stabilized in a kind of quantitative collection water environment |
| CN110220766A (en) * | 2019-06-21 | 2019-09-10 | 辽宁石油化工大学 | A method of passing through phenol in composite material quantitative collection water environment |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5205988A (en) * | 1989-04-06 | 1993-04-27 | Nihon Bunko Kogyo Kabushiki Kaisha | Apparatus for measuring gaseous aldehyde |
| US5942442A (en) * | 1997-04-02 | 1999-08-24 | The Perkin-Elmer Corporation | Detection of low level analytes in samples using agglutination reaction capillary slide test and apparatus therefor |
| CN1834641A (en) * | 2006-04-14 | 2006-09-20 | 清华大学 | Sampling and monitoring method and device for polarity endocrine interferent in water environment |
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2007
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102221517A (en) * | 2011-04-08 | 2011-10-19 | 中国船舶重工集团公司第七○二研究所 | Ecological desilting diffusion measuring device |
| CN102221517B (en) * | 2011-04-08 | 2013-06-26 | 中国船舶重工集团公司第七○二研究所 | Ecological desilting diffusion measuring device |
| CN106574917A (en) * | 2014-02-28 | 2017-04-19 | 新加坡国立大学 | An in situ real time monitoring system for trace analytes in water |
| CN110208061A (en) * | 2019-06-21 | 2019-09-06 | 辽宁石油化工大学 | Phenol and make to acquire the method that phenol is stabilized in a kind of quantitative collection water environment |
| CN110220766A (en) * | 2019-06-21 | 2019-09-10 | 辽宁石油化工大学 | A method of passing through phenol in composite material quantitative collection water environment |
| CN110220766B (en) * | 2019-06-21 | 2021-10-22 | 辽宁石油化工大学 | Method for quantitatively collecting phenol in water environment through composite material |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101021516B (en) | 2010-09-08 |
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