Carbon-ceramic utilized absorption material

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...

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 extraction head coating materials and related preparation technologies to broaden the sample range is the key to the development of solid-phase microextraction technology.