Octadecyl modified foam nickel adsorbent and application thereof

A technology of octadecyl and nickel foam, applied in other chemical processes, preparation of test samples, alkali metal oxides/hydroxides, etc., to achieve good stability, fast separation process, and good adsorption effect
CN106861629AInactive Publication Date: 2017-06-20JIANGXI UNIVERSITY OF TRADITIONAL CHINESE MEDICINE
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
JIANGXI UNIVERSITY OF TRADITIONAL CHINESE MEDICINE
Publication Date
2017-06-20
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses an octadecyl modified foam nickel adsorbent and application thereof. The octadecyl modified foam nickel adsorbent is prepared by the following steps: after pre-treating foam nickel, dispersing the foam nickel into a mixture of isopropyl alcohol and ultrapure water and carrying out ultrasonic treatment; adding ammonia water and TEOS (Tetraethyl Orthosilicate) in sequence; stirring at 45 DEG C for 12h; washing and drying to obtain silicon coated foam nickel; under the protection of argon gas, adding anhydrous toluene, dried C18-isocynate, triethylamine and the dried silicon coated foam nickel in sequence; reflowing a mixture at 80 DEG C for 24h under magnetic stirring; naturally cooling to room temperature; washing and drying to obtain the octadecyl modified foam nickel adsorbent. The octadecyl modified foam nickel adsorbent disclosed by the invention can be used for carrying out solid phase extraction on 16 types of PAHs (Polycyclic Aromatic Hydrocarbons). The adsorbent has a relatively good adsorption effect and can be rapidly separated from a matrix, has relatively good stability; the adsorbent can be rapidly extracted, can be repeatedly utilized for a plurality of times and is a sensitive, effective, convenient and reliable adsorption material for trace analysis of the PAHs.
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Description

Technical field

[0001] The invention relates to a solid phase extraction adsorbent, in particular to an octadecyl modified foamed nickel adsorbent and its application. Background technique

[0002] Polycyclic aromatic hydrocarbons (PAHs) are composed of a large group of hydrocarbons containing 2 or more fused rings. They are a kind of widespread environmental pollutants, which are produced by incomplete combustion of natural and man-made organic materials. PAHs are toxic substances that are difficult to degrade. A large number of epidemiological studies have shown that people exposed to PAHs are at risk of cancer. For this reason, PAHs are listed as priority pollutants by the U.S. Environmental Protection Agency (U.S.EPA) and the European Environment Agency (EEA). Therefore, in order to protect human health and environmental safety, more and more studies have focused on the determination of PAHs in environmental water samples. PAHs have strong hydrophobicity and volatility, and ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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