4 results about "Electrochemiluminescence" patented technology

The invention relates to a method for measuring formaldehyde in aqueous solution by utilizing electrochemical luminescence of terpyridyl ruthenium. The aqueous solution sample containing the formaldehyde is taken to be mixed with terpyridyl ruthenium solution with the pH value of 8.6 and the concentration of 1mmol/L, wherein, the concentration of the formaldehyde aqueous solution is 0.9-300mg/L; after that, cyclic voltammetry is carried out within the range of 0.2-1.5v, and the speed is 0.1v/s; a working electrode of electrochemical luminescence measurement is a glassy carbon electrode, and then linear relation exists within a certain range according to the electrochemical illumination intensity and the concentration of the formaldehyde; quantitative analysis is carried out on the formaldehyde in the aqueous solution. The method can be used for measuring the content of the formaldehyde within the concentration range of 0.9-300mg/L. The method for measuring formaldehyde by utilizing electrochemical luminescence has the advantages of simple operation, rapid measuring speed, lower price of an analytical instrument and the like, and can be expected to be used for daily analysis.

The invention discloses a preparation method of an electrochemiluminescence sensor for detecting organochlorine pesticides. The preparation method is characterized in that firstly a novel two-dimensional nanocomposite-titanium dioxide/molybdenum disulfide composite, namely an iron and manganese codoped titanium dioxide nanodiamond and molybdenum disulfide in-situ composite two-dimensional nanocomposite FeMn-TiO2/MoS2, is prepared, organochlorine pesticide antibodies are loaded by utilizing the good biocompatibility and large specific surface area of the material, during detection, iron and manganese codoped titanium dioxide can catalyze hydrogen peroxide to generate O2 in situ and carry out electrochemical reaction with K2S2O8 in a base solution to generate electrochemiluminescence signals, and the impacts of specific quantitative combination of the antibodies and antigens on the electron transport capacity are utilized, so that the current intensity is reduced, thus reducing the luminescence intensity and finally achieving construction of the electrochemiluminescence sensor for detecting the organochlorine pesticides by adopting an unmarked electrochemiluminescence method.