Extraction and filtration method for extracting target object in solid sample

A filtration method and target object technology, which is applied in the field of extraction of semi-volatile and non-volatile organic compounds, which can solve the problems of low recovery rate, difficult to achieve multiple extractions of target objects, poor stability, etc.

Active Publication Date: 2021-05-28
TIANJIN ENVIRONMENT MONITORING CENT
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, at present, these two methods have technical bottlenecks that are only suitable for one-time extraction of the sample, and it is difficult to achieve multiple extractions required for the full determination of the target substance in the sample.

Method used

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  • Extraction and filtration method for extracting target object in solid sample
  • Extraction and filtration method for extracting target object in solid sample
  • Extraction and filtration method for extracting target object in solid sample

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Embodiment Construction

[0034] Below in conjunction with accompanying drawing, technical scheme among the present invention will be further described:

[0035] This example provides an extraction and filtration device that can be used for extraction of organic matter in a solid matrix by means of ultrasonic extraction or vibration extraction. Its main body is an extraction bottle. Liquid filtration kit for easy filtration of extracts.

[0036] figure 1 Schematic diagram of the structure of the extraction bottle. The extraction bottle mainly includes a bottle body 4, a first sealing screw cap 1 and a second sealing screw cap 8, the upper end and the lower end of the bottle body 4 are open, and the outside is provided with threads, and the upper end is called the upper screw port 3 of the extraction bottle. The lower end is called the lower screw port 6 of the extraction bottle. The first sealing screw cap 1 and the second sealing screw cap 8 are made of plastic, and the sealing gasket 2 and the sea...

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Abstract

The invention relates to an extraction and filtration method for extracting a target object in a solid sample. The main body of an adopted extraction and filtration device is an extraction bottle, and after the extraction bottle is used for extraction, the extraction bottle is modified into an extraction liquid filtration kit so as to filter an extraction liquid. The extraction bottle comprises a bottle body (4), a first sealing screw cap (1), a second sealing screw cap (8) and a fastening clamp (9), wherein both the upper end and the lower end of the bottle body (4) are open, and a screw cap fastening groove (14) is formed in the outer surface of the second sealing screw cap (8); a bottle opening fastening groove (5) is formed in the outer surface, which is close to the extraction bottle lower screw opening (6), of the lower end of the bottle body (4); and the fastening clamp (9) is in a double-arc shape and comprises a bottle opening arc ring (91) and a screw cap arc ring (92). According to the invention, multiple extraction of extraction methods such as an ultrasonic extraction method and an oscillation extraction method can be conveniently achieved, and the sample analysis accuracy is improved.

Description

technical field [0001] The invention relates to the technical field of organic matter analysis, and relates to an extraction and filtration device and an extraction method for extracting target substances in solid samples, and is especially suitable for the extraction of semi-volatile and non-volatile organic substances as the target substances. Background technique [0002] With the continuous acceleration of my country's industrial and agricultural development, the extensive use of various chemical raw materials, chemical products and by-products, pesticides, veterinary drugs, herbicides, etc., has led to the content of organic pollutants in environmental media such as water bodies, soils, and sediments in my country. constantly improving. Environmental pollution seriously affects the sustainable development of the natural environment and poses a huge threat to human health. At present, semi-volatile organic compounds (SVOCs) and non-volatile organic compounds (NVOCs) in s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D11/02B01D29/085
CPCB01D11/0261B01D11/0265B01D29/085
Inventor 关玉春李利荣孙国鼐许亮吴宇峰王效国张肇元崔连喜杨华毕温凯张玉惠
Owner TIANJIN ENVIRONMENT MONITORING CENT
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