Abstract: A detection method for cancer is provided. Magnetic carbon beads are used. The carbon beads are highly specified to a cancer. Surface area of grafted antigen are broadened by grafting functional molecules. Number of antigen is increased on the surface. Thus, the present invention improves sensitivity and accuracy of disease detection and greatly saves cost. The present invention can be applied for sample purification or massive disease detection.

Abstract: A method is provided for modifying a radioactive carbon nanotube (CNT) carrier. Magnetic molecules are used. The modified CNT is highly specified to disease. Surface of the CNT has functional grafts for catching antigen/antibody. Antigen/antibody thus caught on the surface is increased in number. Thus, the present invention improves sensitivity and accuracy of disease detection and greatly saves cost. The present invention can be applied for sample purification or massive disease detection.

Abstract: A method for using a multi-welled micro-plate in radioimmunoassay (“RIA”) is disclosed to improve the performance of RIA. At first, there is provided a multi-welled micro-plate that can be dismantled and divided into multiple wells. Then, samples are filled into the wells of the multi-welled micro-plate for incubation. Washing, tracer-adding, incubation, and washing are executed. At a final step, the multi-welled micro-plate is separated into wells, and each of to the wells is put into a test tube for gamma counting by a gamma counter.

Abstract: Disclosed is a method for quantitatively analyzing a functional group on the surface of a solid material. The functional group is carboxylic group while the solid material is carbon nano-tubes. The carboxylic group reacts with sodium hydrogen carbonate, thus turning the carboxylic groups into sodium carboxylate while consuming the sodium ions in the solution. The carbon nano-tubes are separated from the sodium hydrogen carbonate solution. The number of the sodium ions before and after the reaction is analyzed. Moreover, the sodium carboxylate carried on the reacted carbon nano-tubes with reacts with hydrochloric acid solution, thus dissolving the sodium ions in the hydrochloric acid solution. The carbon nanotubes are separated from from the hydrochloric acid solution. The amount of the sodium ions is analyzed before and after the reaction in the hydrochloric acid solution.

Abstract: A method for using a multi-welled micro-plate in radioimmunoassay (“RIA”) is disclosed to improve the performance of RIA. At first, there is provided a multi-welled micro-plate that can be dismantled and divided into multiple wells. Then, samples are filled into the wells of the multi-welled micro-plate for incubation. Washing, tracer-adding, incubation, and washing are executed. At a final step, the multi-welled micro-plate is separated into wells, and each of to the wells is put into a test tube for gamma counting by a gamma counter.

Abstract: Disclosed is a method for quantitatively analyzing a functional group on the surface of a solid material. The functional group is carboxylic group while the solid material is carbon nano-tubes. The carboxylic group reacts with sodium hydrogen carbonate, thus turning the carboxylic groups into sodium carboxylate while consuming the sodium ions in the solution. The carbon nano-tubes are separated from the sodium hydrogen carbonate solution. The number of the sodium ions before and after the reaction is analyzed. Moreover, the sodium carboxylate carried on the reacted carbon nano-tubes with reacts with hydrochloric acid solution, thus dissolving the sodium ions in the hydrochloric acid solution. The carbon nanotubes are separated from from the hydrochloric acid solution. The amount of the sodium ions is analyzed before and after the reaction in the hydrochloric acid solution.