4 results about "Dimercaptosuccinic acid" patented technology

This invention discloses an inverse perovskite anode interface modification material and its application, belonging to the field of perovskite solar cell technology. The interface modification material includes thiomalic acid, 2-amino-3-sulfonylpropionic acid, DL-2-amino-3-phosphopropionic acid, dimercaptosuccinic acid, etc. The interface modification material contains two or more groups that interact with TCO (total organic carbon), and the material preferentially and directionally deposits in areas not covered by SAM (soil anode metallization layer). During the deposition process of this interface modification material, an alcohol-soluble solvent can partially dissolve and wash away aggregated SAM molecules, improving the coverage of SAM molecules and enhancing the hole extraction and transport capabilities of the SAM hole transport layer. The interface modification material of this invention contains groups that interact with perovskite, reducing the formation of cracks and pores at the perovskite buried interface, and reducing and passivating defects.

The application discloses a preparation method and application of an aflatoxin M1 hapten and a whole antigen, wherein the hapten contains two complete active carboxyl groups and can be firmly combined with more carrier proteins. The aflatoxin M1 hapten is obtained by addition of aflatoxin M1 and dimercaptosuccinic acid under catalysis of boron trifluoride ether; the whole antigen is a covalent combination of the hapten and BSA, is prepared by using an EDC / NHS carboxyl coupling method, and can be used for antibody preparation and AFM1 detection.

The application relates to the technical field of flocculants, and discloses a preparation method of Sn-S chelate type organic composite flocculants and application thereof. The Sn-S chelate type organic composite flocculants are prepared by using di-n-octyltin dilaurate and dimercaptosuccinic acid as raw materials and chelating mechanism to chelate organotin compounds, combine tin and sulfur atoms to form a five-membered ring organic ring skeleton material. The Sn-S chelate type organic composite flocculants provided by the application are chelate-dominant chemical bonds, can form stable five-membered ring chelates through covalent bonds, have high bond energy, strong irreversible reaction, stable organic ring skeleton structure, can fix the spatial position of sulfur atoms in advance through the ring skeleton, can be coordinated with heavy metals in the form of five-membered ring, and can improve reaction kinetics and binding strength. Therefore, the Sn-S chelate type organic composite flocculants have excellent affinity to Pb 2+ and Hg 2+ , and can remove mercury and lead ions in wastewater with a removal rate of more than 90%.

This invention discloses a method for preparing aflatoxin M1 hapten and full antigen, and their applications. The hapten contains two intact active carboxyl groups, which can firmly bind to more carrier proteins. The aflatoxin M1 hapten is obtained by the addition reaction of aflatoxin M1 with dimercaptosuccinic acid under the catalysis of boron trifluoride diethyl ether. The full antigen is a covalent conjugate of the hapten and BSA, prepared by the EDC / NHS activated carboxyl coupling method, and can be used for antibody preparation and AFM1 detection.