| abstract |
(57) [Summary] (Modified) [Purpose] Method of coating gold sol with compounds such as alkanethiol, use of coated sol in immunological and immunocytological diagnostic tests, and these coated gold sol Providing a test kit including. [Constitution] Chloroauric acid trihydrate dissolved in water is added to deionized water, and hydroxylamine hydrochloride is added thereto. Then seed gold particles are added and stirred. A small amount of acetone is added and the resulting mixture is stirred. K 2 CO 3 is added until the pH is 7.0. The size of the gold sol depends on the amount of gold particles added and the amount of chloroauric acid used, and the diameter is about 2 It is in the range of 0 nm to about 150 nm and is directly coated with alkanethiol or thiol derivative. |