| 摘要 |
The purpose of the present invention is to provide a stable colloidal gold solution and a method for producing the stable colloidal gold solution. A colloidal gold solution which contains, in water, gold nanoparticles having particle diameters of 100 nm or less and anions represented by general formula (a); and a method for producing the colloidal gold solution. R—COO− (a) (In the formula, R represents a linear or branched alkyl group having 1-4 carbon atoms.) |
