Rainwater pollutant passive sampler with automatic quantification function
A passive sampler and pollutant technology, applied in sampling devices, chemical instruments and methods, filtration and separation, etc., can solve the problems of collecting rainwater with many impurities, poor parallelism, untimely sample processing, etc., and achieve accurate sampling volume and easy operation , the effect of simple structure
Inactive Publication Date: 2021-06-29
SHENYANG UNIV
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Problems solved by technology
[0007] The purpose of the present invention is to provide an automatic quantitative rainwater pollutant passive sampler to solve t...
Method used
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Embodiment Construction
[0027] like figure 1 Shown, the present invention is made of upper bottle body 2, lower bottle body 3 and sieve plate 1.
[0028] The bottle body is divided into two parts, an upper bottle body 2 and a lower bottle body 3, and the upper bottle body 2 and the lower bottle body 3 are connected to form a straight cylinder through butt-jointed threads. The upper bottle body is divided into inner and outer layers. The outer layer is shorter than the inner layer. The outer layer and the inner layer are connected at the mouth of the bottle to form a hollow interlayer with the inner layer. thread; the bottle mouth of the inner layer of the upper bottle is provided with a sieve plate 1 and a magnetic ring 201, the sieve plate 1 is mounted on the upper flange of the magnetic ring 201, and a hollow interlayer with the inner and outer layers is provided below the magnetic ring Ventilation opening 202, the inner layer of the upper bottle body is a pointed bottom structure, and the pointed...
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The invention relates to a combined passive sampler for collecting rainwater samples and extracting pollutants. The combined passive sampler structurally comprises an upper bottle body, a lower bottle body, a bottle cap, a sieve plate and a sharp opening, the bottle body is formed by connecting an upper bottle body and a lower bottle body in an involution and screwed mode, a bottle opening is formed in the top of the upper bottle body, and a sharp opening is formed in the lower portion of the upper bottle body; the bottle cap is formed by combining a sharp opening cover plate and a buoyancy cover plate through a soft connecting line. In the water sample bottle injection process, the bottle cap automatically ascends and is finally closed, sampling does not need to be finished manually, sample volatilization and inconsistency caused by untimely manual operation are avoided, sampling manpower is saved, and the uniformity of collected samples is improved; a sampling bottle adopts an upper and lower split combined structure, an upper bottle body is of an upper and lower opening structure and a sharp opening structure, gas exchange between the upper bottle body and the lower bottle body is performed through the opening structure of the upper bottle body, a specific sampling mode of 'upper water entry and lower extraction' can be realized, the step of later pretreatment of the samples is omitted, and the storage effect of the collected samples is improved; in the water sample collection process, two times of filtration are carried out at the upper bottle opening and the lower bottle opening of the upper bottle body, and the lower bottle opening can be connected with different solid-phase extraction small columns, so that the requirement for extracting various pollutants can be flexibly met, and the time for sample collection and pollutant extraction is saved.
Description
technical field [0001] The invention relates to a sampling container for environmental rainwater research, in particular to a passive sampler for automatic quantitative rainwater pollutants. Background technique [0002] The sampler used in environmental rainwater research is usually a glass or plastic bottle without a cap, and its shape is generally a jar or a basin, that is, the bottle body part is a cylinder, and the bottle mouth part is a cylinder with the same diameter or a thick diameter , the transition part between the bottle body and the bottle mouth is in the shape of a concave annular arc surface. [0003] Most of the sampling bottles have no cover structure, and their disadvantages are: firstly, it is easy to mix sundries in the process of collecting rainwater, such as leaves, catkins, etc., which increases the possibility of pollution in the process of rainwater sampling; For rainwater sampling bottles, when the rainfall continues, it is necessary to go to the ...
Claims
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Login to view more IPC IPC(8): G01N1/20B01D36/00
CPCB01D36/008G01N1/20
Inventor 许佳瑶
Owner SHENYANG UNIV
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