Water body phosphate in-situ rapid enrichment device and using method

An in-situ enrichment and phosphate technology, applied in the direction of measuring devices, chemical instruments and methods, water pollutants, etc., can solve the problems of difficult to guarantee the purification rate, the convenience of the method has not been completely changed, and the cumbersome experimental steps, etc., to achieve Avoid collection and transportation, convenient assembly and mature preparation process

Inactive Publication Date: 2021-01-12
HEBEI UNIV OF ENG
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  • Summary
  • Abstract
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  • Claims
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Problems solved by technology

However, these optimized methods still need to collect a large number of environmental samples, and the experimental steps are still quite cumbersome. 3 PO 4 The purification rate is more difficult to guarantee, and the convenience of the method has not been completely changed so far.

Method used

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  • Water body phosphate in-situ rapid enrichment device and using method

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Embodiment 1

[0020] see figure 1 , an in-situ rapid enrichment device for phosphate in water, comprising a chromatographic column 2 fixed on a chromatographic column frame 1, the inner bottom of the chromatographic column 2 is filled with zirconium-loaded zeolite 4, and the chromatographic column 2 Both the top and the bottom are connected with a rubber hose 5, the front end of the rubber hose 5 at the bottom of the chromatography column 2 is a water outlet 8, and the front end of the rubber hose 5 at the top of the chromatography column 2 is connected with the output end of the small rechargeable water pump 3, and at the input of the small rechargeable water pump 3 The end is also connected with a rubber hose 5, and the front end of the input rubber hose 5 of the small rechargeable water pump 3 is a water inlet 9, and the water inlet 9 is wrapped with a non-woven filter cloth 7.

[0021] The method of using the above-mentioned device includes three steps of zeolite pretreatment, on-site i...

Embodiment 2

[0027]On the basis of Embodiment 1, a rubber band 6 is set on the outside of the non-woven filter cloth 7 to ensure the fixation of the non-woven filter cloth 7 and the rubber hose 5 .

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Abstract

The invention discloses a water body phosphate in-situ rapid enrichment device which comprises a chromatographic column, the chromatographic column is fixed on a chromatographic column frame, the inner bottom of the chromatographic column is filled with zirconium-loaded zeolite, rubber tubes are connected to the top and the bottom of the chromatographic column, and a water outlet is formed in thefront end of the rubber tube at the bottom of the chromatographic column. The front end of the rubber tube at the top of the chromatographic column is connected with the output end of a small rechargeable water pump, the input end of the small rechargeable water pump is also connected with a rubber tube, the front end of the rubber tube at the input end of the small rechargeable water pump is a water inlet, and the water inlet is wrapped with non-woven filter cloth; the device disclosed by the invention can realize in-situ rapid enrichment and laboratory efficient elution of phosphate in rivers or lakes, and finally a high-purity and high-concentration phosphate solution is obtained, so that subsequent generation of high-purity Ag3PO4 is facilitated; compared with a traditional phosphate oxygen isotope pretreatment method, collection and transportation of a large number of overlying water samples can be avoided.

Description

technical field [0001] The invention relates to a water body phosphate oxygen isotope measurement technology, in particular to a water body phosphate in-situ rapid enrichment device and a use method. Background technique [0002] Phosphate oxygen isotope technology is an effective tool to trace the source and circulation of phosphorus in rivers. The experimental method of phosphate oxygen isotope technology is currently mainly through the collection of a considerable number of environmental samples and pretreatment methods (enrichment, separation and purification) Convert all phosphate in the sample to Ag 3 PO 4 , due to the complex composition of samples in nature, especially the presence of organic matter and other oxygen-containing substances, not only will interfere with Ag 3 PO 4 The generation of , will also interfere with the determination results of the stable isotope ratio mass spectrometer, so the pretreatment of the sample is particularly important. [0003] H...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/40G01N27/62C02F1/28C02F101/10
CPCG01N1/405G01N27/62C02F1/281C02F2103/007C02F2101/105
Inventor 金鑫李思敏李素妹唐锋兵张炜
Owner HEBEI UNIV OF ENG
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