CN101021514B - A method for in-situ sampling, separation, enrichment and measurement of water pollutants in water bodies - Google Patents
A method for in-situ sampling, separation, enrichment and measurement of water pollutants in water bodies Download PDFInfo
- Publication number
- CN101021514B CN101021514B CN2007100105501A CN200710010550A CN101021514B CN 101021514 B CN101021514 B CN 101021514B CN 2007100105501 A CN2007100105501 A CN 2007100105501A CN 200710010550 A CN200710010550 A CN 200710010550A CN 101021514 B CN101021514 B CN 101021514B
- Authority
- CN
- China
- Prior art keywords
- concentration
- water
- water body
- take
- measure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 152
- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000005070 sampling Methods 0.000 title claims abstract description 17
- 238000011065 in-situ storage Methods 0.000 title claims abstract description 14
- 238000005259 measurement Methods 0.000 title claims abstract description 12
- 238000000926 separation method Methods 0.000 title claims abstract description 8
- 239000003403 water pollutant Substances 0.000 title description 2
- 239000004372 Polyvinyl alcohol Substances 0.000 claims abstract description 61
- 229920002451 polyvinyl alcohol Polymers 0.000 claims abstract description 61
- 239000012528 membrane Substances 0.000 claims abstract description 49
- 239000000126 substance Substances 0.000 claims abstract description 39
- 238000003860 storage Methods 0.000 claims abstract description 35
- 229920000642 polymer Polymers 0.000 claims abstract description 21
- 150000001875 compounds Chemical class 0.000 claims abstract description 17
- 239000003344 environmental pollutant Substances 0.000 claims abstract description 8
- 231100000719 pollutant Toxicity 0.000 claims abstract description 8
- 239000007864 aqueous solution Substances 0.000 claims abstract description 6
- 230000000149 penetrating effect Effects 0.000 claims abstract description 3
- 229910052787 antimony Inorganic materials 0.000 claims description 41
- 229910052796 boron Inorganic materials 0.000 claims description 41
- 229910052719 titanium Inorganic materials 0.000 claims description 41
- 229910052720 vanadium Inorganic materials 0.000 claims description 41
- 239000000243 solution Substances 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 229910052785 arsenic Inorganic materials 0.000 claims description 2
- 229910052790 beryllium Inorganic materials 0.000 claims description 2
- 229910052793 cadmium Inorganic materials 0.000 claims description 2
- 229910052804 chromium Inorganic materials 0.000 claims description 2
- 229910052802 copper Inorganic materials 0.000 claims description 2
- 239000003651 drinking water Substances 0.000 claims description 2
- 235000020188 drinking water Nutrition 0.000 claims description 2
- 239000013505 freshwater Substances 0.000 claims description 2
- 229910052745 lead Inorganic materials 0.000 claims description 2
- 229910052748 manganese Inorganic materials 0.000 claims description 2
- 229910052759 nickel Inorganic materials 0.000 claims description 2
- 229910052702 rhenium Inorganic materials 0.000 claims description 2
- 229910052711 selenium Inorganic materials 0.000 claims description 2
- 239000010865 sewage Substances 0.000 claims description 2
- 239000002689 soil Substances 0.000 claims description 2
- 229910052716 thallium Inorganic materials 0.000 claims description 2
- 229910052725 zinc Inorganic materials 0.000 claims description 2
- 238000001479 atomic absorption spectroscopy Methods 0.000 abstract description 47
- 238000004611 spectroscopical analysis Methods 0.000 abstract 1
- -1 polytetrafluoroethylene Polymers 0.000 description 52
- 239000004743 Polypropylene Substances 0.000 description 51
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 51
- 229920001155 polypropylene Polymers 0.000 description 51
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 49
- 239000010936 titanium Substances 0.000 description 40
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 39
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 description 39
- GPPXJZIENCGNKB-UHFFFAOYSA-N vanadium Chemical compound [V]#[V] GPPXJZIENCGNKB-UHFFFAOYSA-N 0.000 description 39
- 238000000870 ultraviolet spectroscopy Methods 0.000 description 36
- 229910001385 heavy metal Inorganic materials 0.000 description 26
- 238000000502 dialysis Methods 0.000 description 19
- LSGOVYNHVSXFFJ-UHFFFAOYSA-N vanadate(3-) Chemical compound [O-][V]([O-])([O-])=O LSGOVYNHVSXFFJ-UHFFFAOYSA-N 0.000 description 13
- 230000007613 environmental effect Effects 0.000 description 11
- BTBUEUYNUDRHOZ-UHFFFAOYSA-N Borate Chemical compound [O-]B([O-])[O-] BTBUEUYNUDRHOZ-UHFFFAOYSA-N 0.000 description 10
- 238000009792 diffusion process Methods 0.000 description 7
- 238000004847 absorption spectroscopy Methods 0.000 description 5
- 238000012544 monitoring process Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000003203 everyday effect Effects 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- 229920000298 Cellophane Polymers 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 239000008239 natural water Substances 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 230000003204 osmotic effect Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
Landscapes
- Investigating Or Analysing Materials By Optical Means (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
一种在水体中原位取样、分离、富集、测量水体污染物的方法，该方法包括：(1)一种能够渗透被监测物质的半透膜；(2)含有能够与被监测物质相结合的高分子化合物聚乙烯醇；(3)将高分子化合物聚乙烯醇置于装置内与被测水体被半透膜分开；(4)在水体中放置一段时间；(5)取出放在水体中的装置用原子吸收光谱法或可见光谱法测定膜内高分子化合物水溶液中被测物质的浓度，并计算在放置时间内水体中被测物质的平均浓度。其主要优点有：简单，经济；可提供原位浓度、测量多种物质；具有选择性；定量测量与结合相摄取的被监测物质的动力学和半透膜的特性有关。A method for in-situ sampling, separation, enrichment, and measurement of water body pollutants in a water body, the method comprising: (1) a semipermeable membrane capable of penetrating a substance to be monitored; (2) containing (3) Place the high molecular compound polyvinyl alcohol in the device and the water body to be measured is separated by a semi-permeable membrane; (4) Place it in the water body for a period of time; (5) Take it out and put it in the water body The device uses atomic absorption spectrometry or visible spectrometry to measure the concentration of the tested substance in the polymer compound aqueous solution in the film, and calculates the average concentration of the tested substance in the water body during the storage time. Its main advantages are: simple and economical; it can provide in-situ concentration and measure a variety of substances; it is selective; the quantitative measurement is related to the dynamics of the monitored substance absorbed by the binding phase and the characteristics of the semi-permeable membrane.
Description
技术领域technical field
本发明涉及化学及环境监测技术领域，特别涉及一种在水体中原位取样、分离、富集、测量水体污染物的方法。The invention relates to the technical field of chemical and environmental monitoring, in particular to a method for in-situ sampling, separation, enrichment and measurement of water body pollutants in a water body.
背景技术Background technique
环境污染已经成为越来越严峻的社会问题，环境监测作为环境保护的重要组成部分，曾被形象地比喻为环境保护的眼睛、哨兵和尺子，是获取环境信息、认识环境变化、评价环境质量监督排污状况的重要途径，是监督执行环境法规、环境标准的重要技术手段。在环境监测质量控制的一系列步骤中，采样是环境监测的基础，往往决定了最后结论的可信度。一些先进国家的环境保护机构对发展水中痕量污染物的富集采样技术极为重视，近十几年来原位被动采样技术作为一种新型、廉价、使用方便、应用广泛的环境水污染物采样方法，越来越受到环境分析化学研究者的广泛关注并得以迅速发展，并已广泛应用于实际环境和近原生态中，原位被动采样技术可以在不影响母体溶液浓度的前提下在线收集目标检测物质，积累在采样器中的被监测物质的浓度可以真实反映出其在被测体系中的真实浓度或者是时间平均浓度。原位被动采样方法作为一种水体被监测物质的采样方法显示出明显的优势。Environmental pollution has become an increasingly serious social problem. As an important part of environmental protection, environmental monitoring has been vividly compared to the eyes, sentinels and rulers of environmental protection. An important way to monitor the status of pollutant discharge is an important technical means to supervise the implementation of environmental laws and regulations and environmental standards. In a series of steps of environmental monitoring quality control, sampling is the basis of environmental monitoring and often determines the credibility of the final conclusion. Environmental protection agencies in some advanced countries attach great importance to the development of enrichment sampling technology for trace pollutants in water. In the past ten years, in-situ passive sampling technology has become a new, cheap, easy-to-use and widely used sampling method for environmental water pollutants. , has received more and more attention from researchers in environmental analytical chemistry and has developed rapidly, and has been widely used in the actual environment and near-native ecology. The in-situ passive sampling technology can collect target detection online without affecting the concentration of the parent solution. Substance, the concentration of the monitored substance accumulated in the sampler can truly reflect its real concentration or time-average concentration in the measured system. The in-situ passive sampling method shows obvious advantages as a sampling method for the monitored substances in water bodies.
发明内容Contents of the invention
本发明主要利用高分子化合物上的特性基团与外界水体中被监测物质或被监测物质上的特性基团发生化学反应，达到原位取样、富集和定量测量的目的。The invention mainly utilizes the chemical reaction between the characteristic groups on the polymer compound and the monitored substance in the external water body or the characteristic groups on the monitored substance to achieve the purpose of in-situ sampling, enrichment and quantitative measurement.
本发明方法包括：(1)一种能够渗透被监测物质的半透膜；(2)含有能够与被监测物质相结合的高分子化合物；(3)在装置内部的高分子化合物与被测水体被半透膜分开；(4)在水体中放置一定时间，放置的时间为1小时～1年。(5)利用膜的渗透作用，被测水体中被监测物质进入到被膜隔离的装置内部后，立即被高分子化合物结合，从而在膜内外形成一定的扩散梯度，在一定时间内，膜内高分子化合物结合的被测物质与被测水体中被测物质浓度、测定时间有定量关系，从而达到取样、分离和富集的目的；通过测定膜内高分子化合物水溶液中被测物质的量，从而达到定量测量的目的。The method of the present invention includes: (1) a semipermeable membrane capable of penetrating the monitored substance; (2) containing a polymer compound that can be combined with the monitored substance; (3) the polymer compound inside the device and the measured water body Separated by a semi-permeable membrane; (4) placed in water for a certain period of time, the placed time is 1 hour to 1 year. (5) Utilizing the osmotic effect of the membrane, the monitored substance in the measured water body enters the device isolated by the membrane and is immediately combined with the polymer compound, thereby forming a certain diffusion gradient inside and outside the membrane. The measured substance combined with the molecular compound has a quantitative relationship with the measured substance concentration and measurement time in the measured water body, so as to achieve the purpose of sampling, separation and enrichment; by measuring the amount of the measured substance in the aqueous solution of the polymer compound in the membrane, thereby To achieve the purpose of quantitative measurement.
溶液中的物质可通过一个简单的方程式来表示：The species in solution can be represented by a simple equation:
M+nL→M(L)nM+nL→M(L)n
M：被监测物质；L：结合相(过量)；M(L)n：被监测物质与高分子化合物形成的络合物。M: the substance to be monitored; L: the binding phase (excess); M(L)n: the complex formed by the substance to be monitored and the polymer compound.
在本发明中，大分子的扩散可能被半透膜影响。但是简单的金属离子或小分子有机化合物则可以自由地扩散，并产生一个有效的扩散系数。这与它们在水中的扩散没有区别。因此本发明允许分子体积小于半透膜孔道的可溶性物质自由扩散。In the present invention, the diffusion of macromolecules may be affected by the semipermeable membrane. But simple metal ions or small organic compounds can diffuse freely and produce an effective diffusion coefficient. This is indistinguishable from their diffusion in water. The present invention therefore allows free diffusion of soluble substances whose molecular volume is smaller than the pores of the semipermeable membrane.
本方法所用的能够渗透被监测物质的半透膜为各种类型半透膜或选择性透过膜，其允许透过分子量大于或等于2000。本发明方法中，能够渗透被监测物质的半透膜有透析膜、色谱纸、渗析膜、生物膜、胶棉薄膜、玻璃纸、羊皮纸、动物膀胱膜等。The semipermeable membranes used in this method that can permeate the substance to be monitored are various types of semipermeable membranes or selectively permeable membranes, which allow the permeable molecular weight to be greater than or equal to 2000. In the method of the present invention, the semipermeable membrane capable of permeating the substance to be monitored includes dialysis membrane, chromatographic paper, dialysis membrane, biofilm, collodion film, cellophane, parchment, animal bladder membrane and the like.
本发明方法中，在膜内侧含有能够与被监测物质相结合的高分子：其平均分子量应大于3000，其水溶液浓度为0.0001-1.0mol·L-1，该高分子化合物为聚乙烯醇。如果半透膜孔隙小，则所用高分子的平均分子量可小些，如果半透膜孔隙大，则所用高分子的平均分子量应大些，总的原则只能允许被监测物质自由通过半透膜扩散，而不能使膜内侧的高分子渗透到外界水相中。In the method of the present invention, the inside of the membrane contains a polymer capable of combining with the substance to be monitored: its average molecular weight should be greater than 3000, its aqueous solution concentration is 0.0001-1.0mol·L -1 , and the polymer compound is polyvinyl alcohol. If the pores of the semipermeable membrane are small, the average molecular weight of the polymer used can be smaller. If the pores of the semipermeable membrane are large, the average molecular weight of the polymer used should be larger. The general principle can only allow the monitored substance to pass through the semipermeable membrane freely. Diffusion, rather than allowing the polymer inside the membrane to penetrate into the external water phase.
本发明方法所用的装置为一种原位取样、分离、富集、测量的装置，如附图所示：该装置是在容器内装有高分子化合物，然后用半透膜将其封好，并通过橡皮垫和夹紧器将其固定即可。The device used in the method of the present invention is a device for sampling, separating, enriching and measuring in situ, as shown in the accompanying drawings: the device is to house a polymer compound in a container, then seal it with a semipermeable membrane, and It can be fixed by rubber pads and clamps.
本发明方法中被监测污染物包括：(1)金属元素，如：Cu，Cd，Co，Zn，Pb，Ni，Cr，Fe，U，Mn，Ag，Sb，Hg，Be，Tl，Tu，Re，V，Ti；(2)非金属元素，如：B，As，Se。In the inventive method, monitored pollutant comprises: (1) metal element, as: Cu, Cd, Co, Zn, Pb, Ni, Cr, Fe, U, Mn, Ag, Sb, Hg, Be, Tl, Tu, Re, V, Ti; (2) non-metal elements, such as: B, As, Se.
本发明方法中所述水体包括：天然淡水、天然矿化水、污水、饮用水、回用水、生物体内水、沉积物和土壤中的水。The water body in the method of the present invention includes: natural fresh water, natural mineralized water, sewage, drinking water, reused water, water in organisms, sediment and water in soil.
本发明方法中，所用高分子化合物的特点是它们都能与被监测物质发生化学反应，并与被监测物质牢牢结合，使得膜内侧的高分子溶液中游离被监测物质的浓度始终保持为零。In the method of the present invention, the polymer compounds used are characterized in that they can chemically react with the monitored substance, and are firmly combined with the monitored substance, so that the concentration of the free monitored substance in the polymer solution inside the membrane is always kept at zero .
在一个被监测物质浓度不断变化的水体中长期放置，可得到在此时间(t)范围内体系中被监测物质的平均浓度(Cm)，Cm＝Csample/t，式中Csample为测量浓度。Long-term placement in a water body where the concentration of the monitored substance is constantly changing, the average concentration (C m ) of the monitored substance in the system within this time (t) range can be obtained, C m = C sample /t, where C sample is Measure the concentration.
本方法的主要优点有：The main advantages of this method are:
(1)简单，经济。(1) Simple and economical.
(2)可以提供原位浓度。(2) In situ concentration can be provided.
(3)可以测量多种物质。(3) Various substances can be measured.
(4)具有选择性。不是测量自然水中所有的物质，只能测量那些在结合相中能被富集的物质。(4) Selective. Not all substances in natural water are measured, only those substances that can be enriched in the binding phase can be measured.
(5)定量测量与结合相摄取的被监测物质的动力学和半透膜的特性有关。(5) The quantitative measurement is related to the kinetics of the monitored substance uptake by the binding phase and the properties of the semipermeable membrane.
(6)如果一个适当的半透膜厚度被选定，物质的传输只与分子扩散有关，物质传输过程与流体动力学无关。(6) If an appropriate semipermeable membrane thickness is selected, the transport of substances is only related to molecular diffusion, and the process of material transport has nothing to do with hydrodynamics.
附图说明Description of drawings
附图为本发明水体中原位取样、分离、富集、测量装置结构示意图。The accompanying drawing is a structural schematic diagram of the in-situ sampling, separation, enrichment and measurement device in the water body of the present invention.
图中：1聚四氟乙烯容器、2高分子化合物水溶液、3半透膜、4垫片、5夹紧器In the figure: 1 polytetrafluoroethylene container, 2 polymer compound aqueous solution, 3 semi-permeable membrane, 4 gasket, 5 clamp
具体实施方式Detailed ways
实施例1Example 1
取2mL 0.0001M聚乙烯醇(PVA)(按羟基浓度计算)装入容积为2mL的聚丙烯的装置后，用透析膜将装置封好，共3个，将装置放入重金属污染的水体中放置1h取出，利用原子吸收光谱法测定重金属的浓度，并计算在放置时间内水体中重金属的平均浓度。Take 2mL of 0.0001M polyvinyl alcohol (PVA) (calculated according to the hydroxyl concentration) and put it into a polypropylene device with a volume of 2mL, seal the device with a dialysis membrane, a total of 3, and put the device into a water body polluted by heavy metals. Take it out for 1 hour, use atomic absorption spectrometry to measure the concentration of heavy metals, and calculate the average concentration of heavy metals in water during the storage time.
实施例2Example 2
取2mL 0.0001M PVA(按羟基浓度计算)装入容积为2mL的聚丙烯的装置后，用色谱纸将装置封好，共3个，将装置放入重金属污染的水体中放置1h取出，利用原子吸收光谱法测定重金属的浓度，并计算在放置时间内水体中重金属的平均浓度。Take 2mL of 0.0001M PVA (calculated according to the hydroxyl concentration) and put it into a polypropylene device with a volume of 2mL, seal the device with chromatographic paper, a total of 3, put the device in the water polluted by heavy metals for 1h, take it out, and use the atomic The concentration of heavy metals is determined by absorption spectroscopy, and the average concentration of heavy metals in water is calculated during the storage time.
实施例3Example 3
取2mL 0.0001M PVA(按羟基浓度计算)装入容积为2mL的聚丙烯的装置后，用火棉胶薄膜将装置封好，共3个，将装置放入重金属污染的水体中放置1h取出，利用原子吸收光谱法测定重金属的浓度，并计算在放置时间内水体中重金属的平均浓度。Take 2mL of 0.0001M PVA (calculated according to the hydroxyl concentration) and put it into a polypropylene device with a volume of 2mL, seal the device with a collodion film, a total of 3 devices, put the device in the water polluted by heavy metals for 1 hour, and take it out. The concentration of heavy metals was determined by atomic absorption spectrometry, and the average concentration of heavy metals in water was calculated during the storage time.
实施例4Example 4
取2mL 0.01M PVA(按羟基浓度计算)装入容积为2mL的聚丙烯的装置后，用透析膜将装置封好，共3个，将装置放入重金属污染的水体中放置12h取出，利用原子吸收光谱法测定重金属的浓度，并计算在放置时间内水体中重金属的平均浓度。Take 2mL of 0.01M PVA (calculated according to the hydroxyl concentration) and put it into a polypropylene device with a volume of 2mL, seal the device with a dialysis membrane, a total of 3, put the device in the water polluted by heavy metals for 12h, take it out, and use the atomic The concentration of heavy metals is determined by absorption spectroscopy, and the average concentration of heavy metals in water is calculated during the storage time.
实施例5Example 5
取2mL 0.01M PVA(按羟基浓度计算)装入容积为2mL的聚丙烯的装置后，用色谱纸将装置封好，共3个，将装置放入重金属污染的水体中放置12h取出，利用原子吸收光谱法测定重金属的浓度，并计算在放置时间内水体中重金属的平均浓度。Take 2mL of 0.01M PVA (calculated according to the hydroxyl concentration) and put it into a polypropylene device with a volume of 2mL, seal the device with chromatographic paper, a total of 3, put the device in the water polluted by heavy metals for 12h, take it out, and use the atomic The concentration of heavy metals is determined by absorption spectroscopy, and the average concentration of heavy metals in water is calculated during the storage time.
实施例6Example 6
取2mL 0.01M PVA(按羟基浓度计算)装入容积为2mL的聚丙烯的装置后，用火棉胶薄膜将装置封好，共3个，将装置放入重金属污染的水体中放置12h取出，利用原子吸收光谱法测定重金属的浓度，并计算在放置时间内水体中重金属的平均浓度。After taking 2mL of 0.01M PVA (calculated according to the concentration of hydroxyl groups) into a polypropylene device with a volume of 2mL, seal the device with a collodion film, a total of 3, put the device into the water polluted by heavy metals for 12h, and take it out. The concentration of heavy metals was determined by atomic absorption spectrometry, and the average concentration of heavy metals in water was calculated during the storage time.
实施例7Example 7
取2mL 0.02M PVA(按羟基浓度计算)装入容积为2mL的聚丙烯的装置后，用透析膜将装置封好，共3个，将装置放入重金属污染的水体中放置12h取出，利用原子吸收光谱法测定重金属的浓度，并计算在放置时间内水体中重金属的平均浓度。Take 2mL of 0.02M PVA (calculated according to the hydroxyl concentration) and put it into a polypropylene device with a volume of 2mL, seal the device with a dialysis membrane, a total of 3 devices, put the device in the water polluted by heavy metals for 12h, take it out, and use the atomic The concentration of heavy metals is determined by absorption spectroscopy, and the average concentration of heavy metals in water is calculated during the storage time.
实施例8Example 8
取2mL 0.02M PVA(按羟基浓度计算)装入容积为2mL的聚丙烯的装置后，用色谱纸将装置封好，共3个，将装置放入重金属污染的水体中放置12h取出，利用原子吸收光谱法测定重金属的浓度，并计算在放置时间内水体中重金属的平均浓度。Take 2mL of 0.02M PVA (calculated according to the hydroxyl concentration) and put it into a polypropylene device with a volume of 2mL, seal the device with chromatographic paper, a total of 3, put the device in the water polluted by heavy metals for 12h, take it out, and use the atomic The concentration of heavy metals is determined by absorption spectroscopy, and the average concentration of heavy metals in water is calculated during the storage time.
实施例9Example 9
取2mL 0.02M PVA(按羟基浓度计算)装入容积为2mL的聚丙烯的装置后，用火棉胶薄膜将装置封好，共3个，将装置放入重金属污染的水体中放置12h取出，利用原子吸收光谱法测定重金属的浓度，并计算在放置时间内水体中重金属的平均浓度。After taking 2mL of 0.02M PVA (calculated according to the concentration of hydroxyl groups) into a polypropylene device with a volume of 2mL, seal the device with a collodion film, a total of 3, put the device into a heavy metal-contaminated water body and place it for 12h to take it out. The concentration of heavy metals was determined by atomic absorption spectrometry, and the average concentration of heavy metals in water was calculated during the storage time.
实施例10Example 10
取2mL 0.0001M聚乙烯醇(PVA)(按羟基浓度计算)装入容积为2mL的聚丙烯的装置后，用透析膜将装置封好，共3个，将装置放入硼酸盐污染或含有硼酸盐的水体中放置1h取出，利用原子吸收光谱法或紫外-可见光谱法测定硼的浓度。Take 2mL of 0.0001M polyvinyl alcohol (PVA) (calculated according to the concentration of hydroxyl groups) into a polypropylene device with a volume of 2mL, seal the device with a dialysis membrane, a total of 3, put the device into borate pollution or contain The borate is placed in the water body for 1 hour and taken out, and the concentration of boron is measured by atomic absorption spectrometry or ultraviolet-visible spectrometry.
实施例11Example 11
取2mL 0.0001M PVA(按羟基浓度计算)装入容积为2mL的聚丙烯的装置后，用色谱纸将装置封好，共3个，将装置放入硼酸盐污染或含有硼酸盐的水体中放置1h取出，利用原子吸收光谱法或紫外-可见光谱法测定硼的浓度。Take 2mL of 0.0001M PVA (calculated according to the concentration of hydroxyl groups) into a polypropylene device with a volume of 2mL, seal the device with chromatographic paper, a total of 3, and put the device into borate-contaminated or borate-containing water Put it in the middle for 1h, take it out, and measure the concentration of boron by atomic absorption spectrometry or ultraviolet-visible spectrometry.
实施例12Example 12
取2mL 0.0001M PVA(按羟基浓度计算)装入容积为2mL的聚丙烯的装置后，用火棉胶薄膜将装置封好，共3个，将装置放入硼酸盐污染或含有硼酸盐的水体中放置1h取出，利用原子吸收光谱法或紫外-可见光谱法测定硼的浓度。Take 2mL of 0.0001M PVA (calculated according to the hydroxyl concentration) and put it into a polypropylene device with a volume of 2mL, seal the device with a collodion film, a total of 3, and put the device into a borate-contaminated or borate-containing device. Put it in the water body for 1 hour and take it out, and measure the concentration of boron by atomic absorption spectrometry or ultraviolet-visible spectrometry.
实施例13Example 13
取2mL 0.01M PVA(按羟基浓度计算)装入容积为2mL的聚丙烯的装置后，用透析膜将装置封好，共3个，将装置放入硼酸盐污染或含有硼酸盐的水体中放置12h取出，利用原子吸收光谱法或紫外-可见光谱法测定硼的浓度，并计算在放置时间内水体中硼的平均浓度。Take 2mL of 0.01M PVA (calculated according to the hydroxyl concentration) and put it into a polypropylene device with a volume of 2mL, seal the device with a dialysis membrane, a total of 3, and put the device into borate-contaminated or borate-containing water Put it in the water for 12 hours, take it out, measure the concentration of boron by atomic absorption spectrometry or ultraviolet-visible spectrometry, and calculate the average concentration of boron in the water body during the storage time.
实施例14Example 14
取2mL 0.01M PVA(按羟基浓度计算)装入容积为2mL的聚丙烯的装置后，用色谱纸将装置封好，共3个，将装置放入硼酸盐污染或含有硼酸盐的水体中放置12h取出，利用原子吸收光谱法或紫外-可见光谱法测定硼的浓度，并计算在放置时间内水体中硼的平均浓度。Take 2mL of 0.01M PVA (calculated according to the hydroxyl concentration) and put it into a polypropylene device with a volume of 2mL, seal the device with chromatographic paper, a total of 3, and put the device into borate-contaminated or borate-containing water Put it in the water for 12 hours, take it out, measure the concentration of boron by atomic absorption spectrometry or ultraviolet-visible spectrometry, and calculate the average concentration of boron in the water body during the storage time.
实施例15Example 15
取2mL 0.01M PVA(按羟基浓度计算)装入容积为2mL的聚丙烯的装置后，用火棉胶薄膜将装置封好，共3个，将装置放入硼酸盐污染或含有硼酸盐的水体中放置12h取出，利用原子吸收光谱法或紫外-可见光谱法测定硼的浓度，并计算在放置时间内水体中硼的平均浓度。Take 2mL of 0.01M PVA (calculated according to the hydroxyl concentration) and put it into a polypropylene device with a volume of 2mL, seal the device with a collodion film, a total of 3, and put the device into a borate-contaminated or borate-containing device. Put it in the water body for 12h and take it out, measure the concentration of boron by atomic absorption spectrometry or ultraviolet-visible spectrometry, and calculate the average concentration of boron in the water body during the placement time.
实施例16Example 16
取2mL 0.02M PVA(按羟基浓度计算)装入容积为2mL的聚丙烯的装置后，用透析膜将装置封好，共3个，将装置放入硼酸盐污染或含有硼酸盐的水体中放置12h取出，利用原子吸收光谱法或紫外-可见光谱法测定硼的浓度，并计算在放置时间内水体中硼的平均浓度。Take 2mL of 0.02M PVA (calculated according to the hydroxyl concentration) and put it into a polypropylene device with a volume of 2mL, seal the device with a dialysis membrane, a total of 3, and put the device into borate-contaminated or borate-containing water Put it in the water for 12 hours, take it out, measure the concentration of boron by atomic absorption spectrometry or ultraviolet-visible spectrometry, and calculate the average concentration of boron in the water body during the storage time.
实施例17Example 17
取2mL 0.02M PVA(按羟基浓度计算)装入容积为2mL的聚丙烯的装置后，用色谱纸将装置封好，共3个，将装置放入硼酸盐污染或含有硼酸盐的水体中放置12h取出，利用原子吸收光谱法或紫外-可见光谱法测定硼的浓度，并计算在放置时间内水体中硼的平均浓度。Take 2mL of 0.02M PVA (calculated according to the hydroxyl concentration) and put it into a polypropylene device with a volume of 2mL, seal the device with chromatographic paper, a total of 3, and put the device into borate-contaminated or borate-containing water Put it in the water for 12 hours, take it out, measure the concentration of boron by atomic absorption spectrometry or ultraviolet-visible spectrometry, and calculate the average concentration of boron in the water body during the storage time.
实施例18Example 18
取2mL 0.02M PVA(按羟基浓度计算)装入容积为2mL的聚丙烯的装置后，用火棉胶薄膜将装置封好，共3个，将装置放入硼酸盐污染或含有硼酸盐的水体中放置12h取出，利用原子吸收光谱法或紫外-可见光谱法测定硼的浓度，并计算在放置时间内水体中硼的平均浓度。Take 2mL of 0.02M PVA (calculated according to the hydroxyl concentration) and put it into a polypropylene device with a volume of 2mL, seal the device with a collodion film, a total of 3, and put the device into a borate-contaminated or borate-containing device. Put it in the water body for 12h and take it out, measure the concentration of boron by atomic absorption spectrometry or ultraviolet-visible spectrometry, and calculate the average concentration of boron in the water body during the placement time.
实施例19Example 19
取2mL 0.0001M聚乙烯醇(PVA)(按羟基浓度计算)装入容积为2mL的聚丙烯的装置后，用透析膜将装置封好，共3个，将装置放入钒酸盐污染或含有钒酸盐的水体中放置1h取出，利用原子吸收光谱法或紫外-可见光谱法测定钒的浓度。Take 2mL of 0.0001M polyvinyl alcohol (PVA) (calculated according to the concentration of hydroxyl group) and put it into a polypropylene device with a volume of 2mL, seal the device with a dialysis membrane, a total of 3, put the device into vanadate pollution or contain The vanadate is placed in the water body for 1 hour and taken out, and the concentration of vanadium is determined by atomic absorption spectrometry or ultraviolet-visible spectrometry.
实施例20Example 20
取2mL 0.0001M PVA(按羟基浓度计算)装入容积为2mL的聚丙烯的装置后，用色谱纸将装置封好，共3个，将装置放入钒酸盐污染或含有钒酸盐的水体中放置1h取出，利用原子吸收光谱法或紫外-可见光谱法测定钒的浓度。Take 2mL of 0.0001M PVA (calculated according to the hydroxyl concentration) and put it into a polypropylene device with a volume of 2mL, seal the device with chromatographic paper, a total of 3, and put the device into the water body polluted by vanadate or containing vanadate Put it in the medium for 1h and take it out, and measure the concentration of vanadium by atomic absorption spectrometry or ultraviolet-visible spectrometry.
实施例21Example 21
取2mL 0.0001M PVA(按羟基浓度计算)装入容积为2mL的聚丙烯的装置后，用火棉胶薄膜将装置封好，共3个，将装置放入钒酸盐污染或含有钒酸盐的水体中放置1h取出，利用原子吸收光谱法或紫外-可见光谱法测定钒的浓度。Take 2mL of 0.0001M PVA (calculated according to the hydroxyl concentration) and put it into a polypropylene device with a volume of 2mL, seal the device with a collodion film, a total of 3, and put the device into a vanadate-contaminated or containing vanadate Put it in the water body for 1h and take it out, and measure the concentration of vanadium by atomic absorption spectrometry or ultraviolet-visible spectrometry.
实施例22Example 22
取2mL 0.01M PVA(按羟基浓度计算)装入容积为2mL的聚丙烯的装置后，用透析膜将装置封好，共3个，将装置放入钒酸盐污染或含有钒酸盐的水体中放置12h取出，利用原子吸收光谱法或紫外-可见光谱法测定钒的浓度，并计算在放置时间内水体中钒的平均浓度。Take 2mL of 0.01M PVA (calculated according to the hydroxyl concentration) and put it into a polypropylene device with a volume of 2mL, seal the device with a dialysis membrane, a total of 3, and put the device into a vanadate-polluted or vanadate-containing water body Put it in the water for 12 hours, take it out, measure the concentration of vanadium by atomic absorption spectrometry or ultraviolet-visible spectrometry, and calculate the average concentration of vanadium in the water during the storage time.
实施例23Example 23
取2mL 0.01M PVA(按羟基浓度计算)装入容积为2mL的聚丙烯的装置后，用色谱纸将装置封好，共3个，将装置放入钒酸盐污染或含有钒酸盐的水体中放置12h取出，利用原子吸收光谱法或紫外-可见光谱法测定钒的浓度，并计算在放置时间内水体中钒的平均浓度。Take 2mL of 0.01M PVA (calculated according to the hydroxyl concentration) and put it into a polypropylene device with a volume of 2mL, seal the device with chromatographic paper, a total of 3, and put the device into the water body polluted by vanadate or containing vanadate Put it in the water for 12 hours, take it out, measure the concentration of vanadium by atomic absorption spectrometry or ultraviolet-visible spectrometry, and calculate the average concentration of vanadium in the water during the storage time.
实施例24Example 24
取2mL 0.01M PVA(按羟基浓度计算)装入容积为2mL的聚丙烯的装置后，用火棉胶薄膜将装置封好，共3个，将装置放入钒酸盐污染或含有钒酸盐的水体中放置12h取出，利用原子吸收光谱法或紫外-可见光谱法测定钒的浓度，并计算在放置时间内水体中钒的平均浓度。Take 2mL of 0.01M PVA (calculated according to the hydroxyl concentration) and put it into a polypropylene device with a volume of 2mL, seal the device with a collodion film, a total of 3, and put the device into a vanadate-contaminated or containing vanadate Put it in the water body for 12h and take it out, measure the concentration of vanadium by atomic absorption spectrometry or ultraviolet-visible spectrometry, and calculate the average concentration of vanadium in the water body during the placement time.
实施例25Example 25
取2mL 0.02M PVA(按羟基浓度计算)装入容积为2mL的聚丙烯的装置后，用透析膜将装置封好，共3个，将装置放入钒酸盐污染或含有钒酸盐的水体中放置12h取出，利用原子吸收光谱法或紫外-可见光谱法测定钒的浓度，并计算在放置时间内水体中钒的平均浓度。Take 2mL of 0.02M PVA (calculated according to the hydroxyl concentration) and put it into a polypropylene device with a volume of 2mL, seal the device with a dialysis membrane, a total of 3, and put the device into a vanadate-polluted or vanadate-containing water body Put it in the water for 12 hours, take it out, measure the concentration of vanadium by atomic absorption spectrometry or ultraviolet-visible spectrometry, and calculate the average concentration of vanadium in the water during the storage time.
实施例26Example 26
取2mL 0.02M PVA(按羟基浓度计算)装入容积为2mL的聚丙烯的装置后，用色谱纸将装置封好，共3个，将装置放入钒酸盐污染或含有钒酸盐的水体中放置12h取出，利用原子吸收光谱法或紫外-可见光谱法测定钒的浓度，并计算在放置时间内水体中钒的平均浓度。Take 2mL of 0.02M PVA (calculated according to the hydroxyl concentration) and put it into a polypropylene device with a volume of 2mL, seal the device with chromatographic paper, a total of 3, and put the device into the water body polluted by vanadate or containing vanadate Put it in the water for 12 hours, take it out, measure the concentration of vanadium by atomic absorption spectrometry or ultraviolet-visible spectrometry, and calculate the average concentration of vanadium in the water during the storage time.
实施例27Example 27
取2mL 0.02M PVA(按羟基浓度计算)装入容积为2mL的聚丙烯的装置后，用火棉胶薄膜将装置封好，共3个，将装置放入钒酸盐污染或含有钒酸盐的水体中放置12h取出，利用原子吸收光谱法或紫外-可见光谱法测定钒的浓度，并计算在放置时间内水体中钒的平均浓度。Take 2mL of 0.02M PVA (calculated according to the hydroxyl concentration) and put it into a polypropylene device with a volume of 2mL, seal the device with a collodion film, a total of 3, and put the device into a vanadate-contaminated or containing vanadate Put it in the water body for 12h and take it out, measure the concentration of vanadium by atomic absorption spectrometry or ultraviolet-visible spectrometry, and calculate the average concentration of vanadium in the water body during the placement time.
实施例28Example 28
取2mL 0.0001M聚乙烯醇(PVA)(按羟基浓度计算)装入容积为2mL的聚丙烯的装置后，用透析膜将装置封好，共3个，将装置放入锑酸盐污染或含有锑酸盐的水体中放置1h取出，利用原子吸收光谱法或紫外-可见光谱法测定锑的浓度。Take 2mL of 0.0001M polyvinyl alcohol (PVA) (calculated according to the concentration of hydroxyl groups) into a polypropylene device with a volume of 2mL, seal the device with a dialysis membrane, a total of 3, put the device into antimonate pollution or contain Place the antimonate in the water body for 1 hour and take it out, and measure the concentration of antimony by atomic absorption spectrometry or ultraviolet-visible spectrometry.
实施例29Example 29
取2mL 0.0001M PVA(按羟基浓度计算)装入容积为2mL的聚丙烯的装置后，用色谱纸将装置封好，共3个，将装置放入锑酸盐污染或含有锑酸盐的水体中放置1h取出，利用原子吸收光谱法或紫外-可见光谱法测定锑的浓度。Take 2mL of 0.0001M PVA (calculated according to the hydroxyl concentration) and put it into a polypropylene device with a volume of 2mL, seal the device with chromatographic paper, a total of 3, and put the device into the water body polluted by antimonate or containing antimonate Put it in the middle for 1h and take it out, and measure the concentration of antimony by atomic absorption spectrometry or ultraviolet-visible spectrometry.
实施例30Example 30
取2mL 0.0001M PVA(按羟基浓度计算)装入容积为2mL的聚丙烯的装置后，用火棉胶薄膜将装置封好，共3个，将装置放入锑酸盐污染或含有锑酸盐的水体中放置1h取出，利用原子吸收光谱法或紫外-可见光谱法测定锑的浓度。Take 2mL of 0.0001M PVA (calculated according to the hydroxyl concentration) and put it into a polypropylene device with a volume of 2mL, seal the device with a collodion film, a total of 3, and put the device into antimonate pollution or contain antimonate Put it in the water body for 1h and take it out, and measure the concentration of antimony by atomic absorption spectrometry or ultraviolet-visible spectrometry.
实施例31Example 31
取2mL 0.01M PVA(按羟基浓度计算)装入容积为2mL的聚丙烯的装置后，用透析膜将装置封好，共3个，将装置放入锑酸盐污染或含有锑酸盐的水体中放置12h取出，利用原子吸收光谱法或紫外-可见光谱法测定锑的浓度，并计算在放置时间内水体中锑的平均浓度。Take 2mL of 0.01M PVA (calculated according to the hydroxyl concentration) and put it into a polypropylene device with a volume of 2mL, seal the device with a dialysis membrane, a total of 3, and put the device into the water body polluted by antimonate or containing antimonate Put it in the water for 12 hours, take it out, measure the concentration of antimony by atomic absorption spectrometry or ultraviolet-visible spectrometry, and calculate the average concentration of antimony in the water during the storage time.
实施例32Example 32
取2mL 0.01M PVA(按羟基浓度计算)装入容积为2mL的聚丙烯的装置后，用色谱纸将装置封好，共3个，将装置放入锑酸盐污染或含有锑酸盐的水体中放置12h取出，利用原子吸收光谱法或紫外-可见光谱法测定锑的浓度，并计算在放置时间内水体中锑的平均浓度。Take 2mL of 0.01M PVA (calculated according to the hydroxyl concentration) and put it into a polypropylene device with a volume of 2mL, seal the device with chromatographic paper, a total of 3, and put the device into the water body polluted by antimonate or containing antimonate Put it in the water for 12 hours, take it out, measure the concentration of antimony by atomic absorption spectrometry or ultraviolet-visible spectrometry, and calculate the average concentration of antimony in the water during the storage time.
实施例33Example 33
取2mL 0.01M PVA(按羟基浓度计算)装入容积为2mL的聚丙烯的装置后，用火棉胶薄膜将装置封好，共3个，将装置放入锑酸盐污染或含有锑酸盐的水体中放置12h取出，利用原子吸收光谱法或紫外-可见光谱法测定锑的浓度，并计算在放置时间内水体中锑的平均浓度。Take 2mL of 0.01M PVA (calculated according to the hydroxyl concentration) and put it into a polypropylene device with a volume of 2mL, seal the device with a collodion film, a total of 3, and put the device into antimonate pollution or antimonate containing Put it in the water body for 12h and take it out, measure the concentration of antimony by atomic absorption spectrometry or ultraviolet-visible spectrometry, and calculate the average concentration of antimony in the water body during the storage time.
实施例34Example 34
取2mL 0.02M PVA(按羟基浓度计算)装入容积为2mL的聚丙烯的装置后，用透析膜将装置封好，共3个，将装置放入锑酸盐污染或含有锑酸盐的水体中放置12h取出，利用原子吸收光谱法或紫外-可见光谱法测定锑的浓度，并计算在放置时间内水体中锑的平均浓度。Take 2mL of 0.02M PVA (calculated according to the hydroxyl concentration) and put it into a polypropylene device with a volume of 2mL, seal the device with a dialysis membrane, a total of 3, and put the device into a water body polluted by antimonate or containing antimonate Put it in the water for 12 hours, take it out, measure the concentration of antimony by atomic absorption spectrometry or ultraviolet-visible spectrometry, and calculate the average concentration of antimony in the water during the storage time.
实施例35Example 35
取2mL 0.02M PVA(按羟基浓度计算)装入容积为2mL的聚丙烯的装置后，用色谱纸将装置封好，共3个，将装置放入锑酸盐污染或含有锑酸盐的水体中放置12h取出，利用原子吸收光谱法或紫外-可见光谱法测定锑的浓度，并计算在放置时间内水体中锑的平均浓度。Take 2mL of 0.02M PVA (calculated according to the hydroxyl concentration) and put it into a polypropylene device with a volume of 2mL, seal the device with chromatographic paper, a total of 3, and put the device into the water body polluted by antimonate or containing antimonate Put it in the water for 12 hours, take it out, measure the concentration of antimony by atomic absorption spectrometry or ultraviolet-visible spectrometry, and calculate the average concentration of antimony in the water during the storage time.
实施例36Example 36
取2mL 0.02M PVA(按羟基浓度计算)装入容积为2mL的聚丙烯的装置后，用火棉胶薄膜将装置封好，共3个，将装置放入锑酸盐污染或含有锑酸盐的水体中放置12h取出，利用原子吸收光谱法或紫外-可见光谱法测定锑的浓度，并计算在放置时间内水体中锑的平均浓度。Take 2mL of 0.02M PVA (calculated according to the hydroxyl concentration) and put it into a polypropylene device with a volume of 2mL, seal the device with a collodion film, a total of 3, and put the device into antimonate pollution or contain antimonate Put it in the water body for 12h and take it out, measure the concentration of antimony by atomic absorption spectrometry or ultraviolet-visible spectrometry, and calculate the average concentration of antimony in the water body during the storage time.
实施例37Example 37
取2mL 0.0001M聚乙烯醇(PVA)(按羟基浓度计算)装入容积为2mL的聚丙烯的装置后，用透析膜将装置封好，共3个，将装置放入钛酸盐污染或含有钛酸盐的水体中放置1h取出，利用原子吸收光谱法或紫外-可见光谱法测定钛的浓度。Take 2mL of 0.0001M polyvinyl alcohol (PVA) (calculated according to the hydroxyl concentration) and put it into a polypropylene device with a volume of 2mL, seal the device with a dialysis membrane, a total of 3, put the device into titanate pollution or contain Put the titanate in water for 1 hour and take it out, and measure the titanium concentration by atomic absorption spectrometry or ultraviolet-visible spectrometry.
实施例38Example 38
取2mL 0.0001M PVA(按羟基浓度计算)装入容积为2mL的聚丙烯的装置后，用色谱纸将装置封好，共3个，将装置放入钛酸盐污染或含有钛酸盐的水体中放置1h取出，利用原子吸收光谱法或紫外-可见光谱法测定钛的浓度。Take 2mL of 0.0001M PVA (calculated according to the hydroxyl concentration) and put it into a polypropylene device with a volume of 2mL, seal the device with chromatographic paper, a total of 3, and put the device into titanate-polluted or titanate-containing water Put it in the middle for 1h and take it out, and measure the concentration of titanium by atomic absorption spectrometry or ultraviolet-visible spectrometry.
实施例39Example 39
取2mL 0.0001M PVA(按羟基浓度计算)装入容积为2mL的聚丙烯的装置后，用火棉胶薄膜将装置封好，共3个，将装置放入钛酸盐污染或含有钛酸盐的水体中放置1h取出，利用原子吸收光谱法或紫外-可见光谱法测定钛的浓度。Take 2mL of 0.0001M PVA (calculated according to the hydroxyl concentration) and put it into a polypropylene device with a volume of 2mL, seal the device with a collodion film, a total of 3, and put the device into a titanate-contaminated or titanate-containing device. Put it in the water body for 1h and take it out, and measure the concentration of titanium by atomic absorption spectrometry or ultraviolet-visible spectrometry.
实施例40Example 40
取2mL 0.01M PVA(按羟基浓度计算)装入容积为2mL的聚丙烯的装置后，用透析膜将装置封好，共3个，将装置放入钛酸盐污染或含有钛酸盐的水体中放置12h取出，利用原子吸收光谱法或紫外-可见光谱法测定钛的浓度，并计算在放置时间内水体中钛的平均浓度。Take 2mL of 0.01M PVA (calculated according to the hydroxyl concentration) and put it into a polypropylene device with a volume of 2mL, seal the device with a dialysis membrane, a total of 3, and put the device into a titanate-polluted or titanate-containing water body Put it in the water for 12 hours, take it out, measure the concentration of titanium by atomic absorption spectrometry or ultraviolet-visible spectrometry, and calculate the average concentration of titanium in the water body during the storage time.
实施例41Example 41
取2mL 0.01M PVA(按羟基浓度计算)装入容积为2mL的聚丙烯的装置后，用色谱纸将装置封好，共3个，将装置放入钛酸盐污染或含有钛酸盐的水体中放置12h取出，利用原子吸收光谱法或紫外-可见光谱法测定钛的浓度，并计算在放置时间内水体中钛的平均浓度。Take 2mL of 0.01M PVA (calculated according to the hydroxyl concentration) and put it into a polypropylene device with a volume of 2mL, seal the device with chromatographic paper, a total of 3, and put the device into titanate-polluted or titanate-containing water Put it in the water for 12 hours, take it out, measure the concentration of titanium by atomic absorption spectrometry or ultraviolet-visible spectrometry, and calculate the average concentration of titanium in the water body during the storage time.
实施例42Example 42
取2mL 0.01M PVA(按羟基浓度计算)装入容积为2mL的聚丙烯的装置后，用火棉胶薄膜将装置封好，共3个，将装置放入钛酸盐污染或含有钛酸盐的水体中放置12h取出，利用原子吸收光谱法或紫外-可见光谱法测定钛的浓度，并计算在放置时间内水体中钛的平均浓度。Take 2mL of 0.01M PVA (calculated according to the hydroxyl concentration) and put it into a polypropylene device with a volume of 2mL, seal the device with a collodion film, a total of 3, and put the device into a titanate-contaminated or titanate-containing device. Put it in the water body for 12h and take it out, measure the concentration of titanium by atomic absorption spectrometry or ultraviolet-visible spectrometry, and calculate the average concentration of titanium in the water body during the placement time.
实施例43Example 43
取2mL 0.02M PVA(按羟基浓度计算)装入容积为2mL的聚丙烯的装置后，用透析膜将装置封好，共3个，将装置放入钛酸盐污染或含有钛酸盐的水体中放置12h取出，利用原子吸收光谱法或紫外-可见光谱法测定钛的浓度，并计算在放置时间内水体中钛的平均浓度。Take 2mL of 0.02M PVA (calculated according to the hydroxyl concentration) and put it into a polypropylene device with a volume of 2mL, seal the device with a dialysis membrane, a total of 3, and put the device into titanate-polluted or titanate-containing water Put it in the water for 12 hours, take it out, measure the concentration of titanium by atomic absorption spectrometry or ultraviolet-visible spectrometry, and calculate the average concentration of titanium in the water body during the storage time.
实施例44Example 44
取2mL 0.02M PVA(按羟基浓度计算)装入容积为2mL的聚丙烯的装置后，用色谱纸将装置封好，共3个，将装置放入钛酸盐污染或含有钛酸盐的水体中放置12h取出，利用原子吸收光谱法或紫外-可见光谱法测定钛的浓度，并计算在放置时间内水体中钛的平均浓度。Take 2mL of 0.02M PVA (calculated according to the hydroxyl concentration) and put it into a polypropylene device with a volume of 2mL, seal the device with chromatographic paper, a total of 3, and put the device into titanate-polluted or titanate-containing water Put it in the water for 12 hours, take it out, measure the concentration of titanium by atomic absorption spectrometry or ultraviolet-visible spectrometry, and calculate the average concentration of titanium in the water body during the storage time.
实施例45Example 45
取2mL 0.02M PVA(按羟基浓度计算)装入容积为2mL的聚丙烯的装置后，用火棉胶薄膜将装置封好，共3个，将装置放入钛酸盐污染或含有钛酸盐的水体中放置12h取出，利用原子吸收光谱法或紫外-可见光谱法测定钛的浓度，并计算在放置时间内水体中钛的平均浓度。Take 2mL of 0.02M PVA (calculated according to the hydroxyl concentration) and put it into a polypropylene device with a volume of 2mL, seal the device with a collodion film, a total of 3, and put the device into a titanate-contaminated or containing titanate Put it in the water body for 12h and take it out, measure the concentration of titanium by atomic absorption spectrometry or ultraviolet-visible spectrometry, and calculate the average concentration of titanium in the water body during the placement time.
实施例46Example 46
取2mL 0.02M PVA(按羟基浓度计算)装入容积为2mL的聚丙烯的装置后，用透析膜将装置封好，共21个，将装置放入可能被硼、锑、钒、钛污染的水体中，放置1周，每天取出3个，利用原子吸收光谱法测定水体中硼、锑、钒、钛，并计算在放置时间内水体中硼、锑、钒、钛的平均浓度。Take 2mL of 0.02M PVA (calculated according to the hydroxyl concentration) and put it into a polypropylene device with a volume of 2mL, seal the device with a dialysis membrane, a total of 21, and put the device into a room that may be contaminated by boron, antimony, vanadium, and titanium. In the water body, put it for 1 week, take out 3 samples every day, use atomic absorption spectrometry to measure boron, antimony, vanadium, titanium in the water body, and calculate the average concentration of boron, antimony, vanadium, titanium in the water body during the storage time.
实施例47Example 47
取2mL 0.02M PVA(按羟基浓度计算)装入容积为2mL的聚丙烯的装置后，用色谱纸将装置封好，共21个，将装置放入可能被硼、锑、钒、钛污染的水体中，放置1周，每天取出3个，利用原子吸收光谱法测定水体中硼、锑、钒、钛，并计算在放置时间内水体中硼、锑、钒、钛的平均浓度。After taking 2mL of 0.02M PVA (calculated according to the concentration of hydroxyl groups) and putting it into a polypropylene device with a volume of 2mL, seal the device with chromatographic paper, a total of 21, and put the device into a room that may be polluted by boron, antimony, vanadium, and titanium. In the water body, put it for 1 week, take out 3 samples every day, use atomic absorption spectrometry to measure boron, antimony, vanadium, titanium in the water body, and calculate the average concentration of boron, antimony, vanadium, titanium in the water body during the storage time.
实施例48Example 48
取2mL 0.02M PVA(按羟基浓度计算)装入容积为2mL的聚丙烯的装置后，用火棉胶薄膜将装置封好，共21个，将装置放入可能被硼、锑、钒、钛污染的水体中，放置1周，每天取出3个，利用原子吸收光谱法测定水体中硼、锑、钒、钛，并计算在放置时间内水系中硼、锑、钒、钛的平均浓度。Take 2mL of 0.02M PVA (calculated according to the hydroxyl concentration) and put it into a polypropylene device with a volume of 2mL, seal the device with a collodion film, a total of 21, and put the device into a device that may be contaminated by boron, antimony, vanadium, titanium In the polluted water body, place it for 1 week, take out 3 samples every day, use atomic absorption spectrometry to measure boron, antimony, vanadium, titanium in the water body, and calculate the average concentration of boron, antimony, vanadium, titanium in the water system during the storage time.
实施例49Example 49
取2mL 0.05M PVA(按羟基浓度计算)装入容积为2mL的聚丙烯的装置后，用透析膜将装置封好，共36个，将装置放入可能被硼、锑、钒、钛污染的水体中，放置1年，每个月取出3个，利用原子吸收光谱法测定水体中硼、锑、钒、钛的浓度，并计算在放置时间内水系中硼、锑、钒、钛的平均浓度，并可了解硼、锑、钒、钛浓度与季节的关系以及硼、锑、钒、钛浓度在全年的变化情况。Take 2mL of 0.05M PVA (calculated according to the concentration of hydroxyl groups) and put it into a polypropylene device with a volume of 2mL, seal the device with a dialysis membrane, a total of 36, and put the device into a room that may be contaminated by boron, antimony, vanadium, and titanium. In the water body, place it for 1 year, take out 3 pieces every month, use atomic absorption spectrometry to measure the concentration of boron, antimony, vanadium, titanium in the water body, and calculate the average concentration of boron, antimony, vanadium, titanium in the water system during the storage time , and can understand the relationship between the concentration of boron, antimony, vanadium, titanium and the season and the change of the concentration of boron, antimony, vanadium, titanium in the whole year.
实施例50Example 50
取2mL 0.05M PVA(按羟基浓度计算)装入容积为2mL的聚丙烯的装置后，用色谱纸将装置封好，共36个，将装置放入可能被硼、锑、钒、钛污染的水体中，放置1年，每个月取出3个，利用原子吸收光谱法测定水体中硼、锑、钒、钛的浓度，并计算在放置时间内水系中硼、锑、钒、钛的平均浓度，并可了解硼、锑、钒、钛浓度与季节的关系以及硼、锑、钒、钛浓度在全年的变化情况。After taking 2mL of 0.05M PVA (calculated according to the hydroxyl concentration) and putting it into a polypropylene device with a volume of 2mL, seal the device with chromatographic paper, a total of 36, and put the device into a room that may be polluted by boron, antimony, vanadium, and titanium. In the water body, place it for 1 year, take out 3 pieces every month, use atomic absorption spectrometry to measure the concentration of boron, antimony, vanadium, titanium in the water body, and calculate the average concentration of boron, antimony, vanadium, titanium in the water system during the storage time , and can understand the relationship between the concentration of boron, antimony, vanadium, titanium and the season and the change of the concentration of boron, antimony, vanadium, titanium in the whole year.
实施例51Example 51
取2mL 0.05M PVA(按羟基浓度计算)装入容积为2mL的聚丙烯的装置后，用胶棉薄膜将装置封好，共36个，将装置放入可能被硼、锑、钒、钛污染的水体中，放置1年，每个月取出3个，利用原子吸收光谱法测定水体中硼、锑、钒、钛的浓度，并计算在放置时间内水系中硼、锑、钒、钛的平均浓度，并可了解硼、锑、钒、钛浓度与季节的关系以及硼、锑、钒、钛浓度在全年的变化情况。Take 2mL of 0.05M PVA (calculated according to the concentration of hydroxyl groups) and put it into a polypropylene device with a volume of 2mL, seal the device with collodion film, a total of 36, and put the device into a device that may be contaminated by boron, antimony, vanadium, and titanium Put it in the water body for 1 year, take out 3 pieces every month, use the atomic absorption spectrometry to measure the concentration of boron, antimony, vanadium, titanium in the water body, and calculate the average concentration of boron, antimony, vanadium, titanium in the water system during the storage time Concentration, and can understand the relationship between the concentration of boron, antimony, vanadium, titanium and the season and the change of the concentration of boron, antimony, vanadium, titanium throughout the year.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100105501A CN101021514B (en) | 2007-03-09 | 2007-03-09 | A method for in-situ sampling, separation, enrichment and measurement of water pollutants in water bodies |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100105501A CN101021514B (en) | 2007-03-09 | 2007-03-09 | A method for in-situ sampling, separation, enrichment and measurement of water pollutants in water bodies |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101021514A CN101021514A (en) | 2007-08-22 |
| CN101021514B true CN101021514B (en) | 2010-06-09 |
Family
ID=38709348
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007100105501A Expired - Fee Related CN101021514B (en) | 2007-03-09 | 2007-03-09 | A method for in-situ sampling, separation, enrichment and measurement of water pollutants in water bodies |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101021514B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102393448B (en) * | 2011-10-20 | 2015-06-03 | 东北大学 | Method for selectively and quantitatively collecting Cd in water environment |
| CN102507261B (en) * | 2011-10-20 | 2015-06-03 | 东北大学 | Method for selectively and quantitatively collecting arsenic in water environment |
| 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 |
| CN105806795A (en) * | 2014-12-29 | 2016-07-27 | 北京有色金属研究总院 | Rapid analysis method for antimony in iron manganese ore sample |
| CN105115788B (en) * | 2015-08-21 | 2018-06-08 | 厦门大学 | Water pollutant time weighted average concentration sampler based on osmotic pumps and Solid Phase Extraction |
| CN106769919A (en) * | 2016-11-25 | 2017-05-31 | 防城港市质量技术监督局 | A kind of assay method of heavy metal in waste water Cr |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1466150A (en) * | 1973-12-08 | 1977-03-02 | Mitsubishi Rayon Co | Process for removing metal ion from aqueous solution |
| CN1804575A (en) * | 2005-12-27 | 2006-07-19 | 南开大学 | Semipermeable membrane for sampling organic contaminant in enriched water environment |
-
2007
- 2007-03-09 CN CN2007100105501A patent/CN101021514B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1466150A (en) * | 1973-12-08 | 1977-03-02 | Mitsubishi Rayon Co | Process for removing metal ion from aqueous solution |
| CN1804575A (en) * | 2005-12-27 | 2006-07-19 | 南开大学 | Semipermeable membrane for sampling organic contaminant in enriched water environment |
Non-Patent Citations (7)
| Title |
|---|
| H. Docekalova et al.Application of diffusive gradient in thin films technique(DGT)to measurement of mercury in aquatic systems.Talanta65.2005,651174-1178. * |
| H. Zhang et al.In situ high resolution measurements of fluxes of Ni, Cu,Fe,and Mn and concentrations of Zn and Cd in porewatersby DGT.Geochimica et Cosmochimica Acta.59 20.1995,59(20),4148-4192. |
| H. Zhang et al.In situ high resolution measurements of fluxes of Ni, Cu,Fe,and Mn and concentrations of Zn and Cd in porewatersby DGT.Geochimica et Cosmochimica Acta.59 20.1995,59(20),4148-4192. * |
| Maria Catalina Alfaro-De la Torre et al.In situ measurement of trace metals in lakewaterusing the dialysis and DGT techniques.Analytica Chimica Acta418.2000,41853-68. * |
| Mohammed Reza Sangi et al.Use of the diffusion gradient thin film method to measuretracemetals in fresh waters at low ionic strength.Analytica Chimica Acta456.2002,456241-251. * |
| Weijia Li et al.Application of a poly(4-styrenesulfonate) liquid bindinglayerformeasurement of Cu2+ and Cd2+ with the diffusivegradients inthin-films technique.Analytical Chemistry75 11.2003,75(11),2578-2583. |
| Weijia Li et al.Application of a poly(4-styrenesulfonate) liquid bindinglayerformeasurement of Cu2+ and Cd2+ with the diffusivegradients inthin-films technique.Analytical Chemistry75 11.2003,75(11),2578-2583. * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101021514A (en) | 2007-08-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101021515A (en) | Method for in-situ sampling, separating enriching and measuring heavy metal ion in water body | |
| CN101021514B (en) | A method for in-situ sampling, separation, enrichment and measurement of water pollutants in water bodies | |
| Dahlqvist et al. | Temporal variations of colloidal carrier phases and associated trace elements in a boreal river | |
| Seethapathy et al. | Passive sampling in environmental analysis | |
| Yoon et al. | Removal of 17β estradiol and fluoranthene by nanofiltration and ultrafiltration | |
| US11726015B2 (en) | System and method for preservation, transport, and analysis of water samples | |
| Estoppey et al. | Monitoring of explosive residues in lake-bottom water using Polar Organic Chemical Integrative Sampler (POCIS) and chemcatcher: determination of transfer kinetics through Polyethersulfone (PES) membrane is crucial | |
| Posada-Ureta et al. | Applicability of polydimethylsiloxane (PDMS) and polyethersulfone (PES) as passive samplers of more hydrophobic organic compounds in intertidal estuarine environments | |
| Kim et al. | Application of desalination membranes to nuclide (Cs, Sr, and Co) separation | |
| Kozelka et al. | Physico-chemical speciation of lead in South San Francisco Bay | |
| Larner et al. | Evaluation of paper-based diffusive gradients in thin film samplers for trace metal sampling | |
| Hartmann et al. | Passive sampler designed for per‐and polyfluoroalkyl substances using polymer‐modified organosilica adsorbent | |
| Šraj et al. | Gas-diffusion-based passive sampler for ammonia monitoring in marine waters | |
| Posada-Ureta et al. | Uptake calibration of polymer-based passive samplers for monitoring priority and emerging organic non-polar pollutants in WWTP effluents | |
| Huang et al. | Electrospraying Zwitterionic Copolymers as an Effective Biofouling Control for Accurate and Continuous Monitoring of Wastewater Dynamics in a Real-Time and Long-Term Manner | |
| Wang et al. | Effects of biofouling on the uptake of perfluorinated alkyl acids by organic-diffusive gradients in thin films passive samplers | |
| MacKeown et al. | A review on polyethersulfone membranes in polar organic chemical integrative samplers: preparation, characterization and innovation | |
| Feng et al. | Effects of seasonal biofouling on diffusion coefficients through filter membranes with different hydrophilicities in natural waters | |
| CN102507261B (en) | Method for selectively and quantitatively collecting arsenic in water environment | |
| CN102353556B (en) | Method for selectively and quantitatively collecting antimony (Sb) in environmental system | |
| Kakehi et al. | Cs+ rejection behavior of polyamide RO membranes for feed solutions with extremely low salt concentrations | |
| CN101021516B (en) | Method for in-situ sampling, separation, enrichment and quantitative measurement of aldehyde content in water by using the diffusion of measured substances | |
| Öhlander et al. | Fractionation of trace metals in a contaminated freshwater stream using membrane filtration, ultrafiltration, DGT and transplanted aquatic moss | |
| CN106323689B (en) | A Water Quality Monitoring-Oriented Trap for Trace Polar Organic Pollutants | |
| CN103592153B (en) | A kind of method of free state Pb (II) ion in original position and quantitative collection environment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100609 Termination date: 20200309 |