Durable organic matter large-volume water sample separation and concentration device

Abstract

The invention belongs to the field of an environmental water sample separation and concentration device, and particularly relates to a durable organic matter large-volume water sample separation and concentration device. The device comprises a liquid storage bottle, and a filter, a receiving bottle, a safety bottle and a vacuum pump, which are movably connected with the liquid storage bottle, wherein a top cover with a water inlet is arranged above the liquid storage bottle, and the water inlet is connected with a sample feeding pipe; a safety bottle is arranged between the receiving bottle and the vacuum pump; and the filter is provided with two layers of filter plates, a sand core is clamped inside an intubation tube below a glass funnel, and a concentration layer is arranged above the sand core. Due to the adoption of the device, the samples can be separated and concentrated on the sampling field; and since the filter is provided with the two layers of filter plates, and the concentration layer is arranged inside the intubation tube, not only can suspended particles containing the durable organic matters be separated and the filter speed and filter efficiency be improved, but also the dissolved durable organic matters can be effectively concentrated, so that the pollution level and the distribution principle of the durable organic matters in two phases of the environmental water sample can be more conveniently researched.

Description

technical field [0001] The invention belongs to the field of environmental water sample separation and enrichment devices, and in particular relates to a persistent organic matter large-volume water sample separation and enrichment device. Background technique [0002] When the laboratory enriches the persistent organic matter in the liquid sample, the micro-analysis filtration device is often used. The device includes a liquid storage bottle, a filter and a receiving bottle. When there are many suspended particles in the liquid sample, it is easy to cause the filter membrane to be blocked. , so the filter needs to frequently replace the filter membrane, and the experimenter has to pour out the sample in the liquid storage bottle, which greatly wastes the sample; in addition, the above-mentioned filter includes a glass funnel and a filter plate matched with the funnel. , Lay a glass fiber filter membrane on the filter plate, the liquid sample is filtered through the filter m...

AI Technical Summary

Problems solved by technology

[0002] When the laboratory enriches persistent organic compounds in liquid samples, it often uses micro-analysis filtration devices, which include liquid storage bottles, filters and receiving bottles , when there are many suspended particles in the liquid sample, it is easy to cause the filter membrane to be blocked, so the filter needs to be replaced frequently, and the experimenter has to pour out the sample in the liquid storage bottle, which greatly wastes the sample; in addition, the above filter It includes a glass funnel and a filter plate matched with the

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