Carbon-ceramic utilized absorption material

A technology of adsorption materials and carbon ceramics, which is applied in other chemical processes, chemical instruments and methods, etc., can solve the problems of slow extraction speed and low extraction volume, and achieve the effects of fast extraction speed, wide application range and mild preparation conditions

Inactive Publication Date: 2006-02-22
CHANGCHUN INST OF APPLIED CHEMISTRY - CHINESE ACAD OF SCI
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  • Summary
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AI Technical Summary

Problems solved by technology

These materials have problems such as slow extraction speed or low extraction volume. The development of high-selectivity, high-stability and high-efficiency extrac

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0007] Example 1: Take 100 microliters of sol made of 5 to 80 microliters of trimethoxymethylsilane, 1 mg of lauric acid and 25 mg of carbon powder and mix them evenly, and then apply the mixture to the surface of the quartz fiber. After curing, It can be used as a solid phase microextraction adsorption material.

Example Embodiment

[0008] Example 2: Take 100 microliters of sol made of 5 to 80 microliters of trimethoxyphenylsilane and 25 mg of carbon powder and mix them uniformly, and then make them into particles. After curing, they can be used for solid phase extraction to coat the mixture. On the surface of quartz fiber, after solidification, it can be used for solid phase microextraction.

Example Embodiment

[0009] Example 3: The sol and carbon powder are mixed uniformly in an appropriate ratio to form particles, so that the content of carbon powder in the dry carbon ceramic is 10%, and the prepared carbon ceramic can be used as a packing material for a chromatographic column .

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Abstract

The invention relates to a carbon ceramic absorption material, belonging to the art of absorption material. The carbon ceramic can be made into solid- shape extraction absorption material, solid- shape micro extraction absorption material or filling material to chromatographic column of the required shape according to the need. If the carbon ceramic is conductive, it can be made into the electric pole of needed dimension and shape, and the electrochemical activity substance except nickel and ferrum can be detected by electrochemical determination after solid- shape extraction or solid- shape micro extraction with the electric pole. The carbon ceramic material of different property can be made by using different carbon material, ceramic material and the corresponding modification agent, to satisfy the need of extraction of different inorganic material and organic material. The carbon ceramic used as solid- phase extraction material has a merit: the preparation condition mild, the extraction velocity quick, and so on.

Description

technical field [0001] The invention relates to carbon ceramics used as an adsorption material, and belongs to the field of adsorption materials. Background technique [0002] Adsorbent materials are widely used in solid-phase extraction, solid-phase microextraction, chromatographic separation, and electrochemical analysis. Solid phase extraction is a technique for extracting and separating analytes from solutions or gases. Because of its advantages of simple operation, flexible use, high recovery rate, less solvent consumption, and easy automation, it has been adopted by many laboratories and analysts. However, this method is cumbersome to operate, has a high blank value, and is easy to clog the adsorption column, resulting in unsatisfactory reproducibility. Solid-phase microextraction is a sample preparation and pretreatment technique that is similar to solid-phase extraction in principle but completely different in operation. This technology was first proposed by the P...

Claims

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Application Information

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IPC IPC(8): B01J20/20
Inventor 徐国宝史立红刘晓庆李海娟
Owner CHANGCHUN INST OF APPLIED CHEMISTRY - CHINESE ACAD OF SCI
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