Inventors:
Duk H. Lee - Wellesley MA
Thomas J. O'Connell - Quincy MA
Assignee:
E. I. Du Pont de Nemours and Company - Wilmington DE
International Classification:
G01N 3368
Abstract:
A method and kit for the optical detection of proteins and nucleic acids in a matrix, such as polyacrylamide electrophoresis gels. The method comprises fixing the proteins and nucleic acids in the matrix using aromatic sulfonic acids having tertiary amines capable of forming coordination complexes with silver ion.