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    • 3. 发明授权
    • Method for producing gold colloid and gold colloid
    • 金胶体和金胶体的生产方法
    • US08048193B2
    • 2011-11-01
    • US12298313
    • 2007-05-29
    • Junichi TaniuchiHirofumi NakagawaKoji Okamoto
    • Junichi TaniuchiHirofumi NakagawaKoji Okamoto
    • B22F9/24
    • B01J13/0043B22F1/0022B22F9/24B82Y30/00Y10S977/896
    • It is an object of the present invention to provide a method for producing gold colloid having a targeted particle size, a sharp particle size distribution and a uniform and perfect spherical shape. The present invention relates to a method for producing gold colloid including a nucleation step of forming nuclear colloidal particles by adding a first reducing agent to a first gold salt solution; and a growth step of growing nuclear colloid by adding a second gold salt and a second reducing agent to the solution of the nuclear colloidal particles, characterized in that the growth step is performed at least once; a citrate is used as the first reducing agent and an ascorbate is used as the second reducing agent; and the addition of the ascorbate in the growth step is performed simultaneously with addition of the second gold salt. According to the method for producing gold colloid of the present invention, gold colloid having a sharp particle size distribution and a uniform and perfect spherical shape can be obtained.
    • 本发明的目的是提供一种具有目标粒度,尖锐的粒度分布和均匀且完美的球形形状的金胶体的制造方法。 本发明涉及一种生产金胶体的方法,包括通过向第一金盐溶液中加入第一还原剂形成核胶体颗粒的成核步骤; 以及通过向核胶体粒子的溶液中添加第二金盐和第二还原剂来生长核胶体的生长步骤,其特征在于,所述生长步骤至少进行一次; 使用柠檬酸盐作为第一还原剂,使用抗坏血酸作为第二还原剂; 并且在添加第二金盐的同时进行生长步骤中的抗坏血酸盐的添加。 根据本发明的金胶体的制造方法,可以获得具有尖锐的粒度分布和均匀且完美的球形的金胶体。
    • 4. 发明申请
    • PROCESS FOR PRODUCTION OF COLLOIDAL GOLD AND COLLOIDAL GOLD
    • 生产胶体金和胶体金的方法
    • US20100159471A1
    • 2010-06-24
    • US12298313
    • 2007-05-29
    • Junichi TaniuchiHirofumi NakagawaKoji Okamoto
    • Junichi TaniuchiHirofumi NakagawaKoji Okamoto
    • G01N33/553
    • B01J13/0043B22F1/0022B22F9/24B82Y30/00Y10S977/896
    • It is an object of the present invention to provide a method for producing gold colloid having a targeted particle size, a sharp particle size distribution and a uniform and perfect spherical shape. The present invention relates to a method for producing gold colloid including a nucleation step of forming nuclear colloidal particles by adding a first reducing agent to a first gold salt solution; and a growth step of growing nuclear colloid by adding a second gold salt and a second reducing agent to the solution of the nuclear colloidal particles, characterized in that the growth step is performed at least once; a citrate is used as the first reducing agent and an ascorbate is used as the second reducing agent; and the addition of the ascorbate in the growth step is performed simultaneously with addition of the second gold salt. According to the method for producing gold colloid of the present invention, gold colloid having a sharp particle size distribution and a uniform and perfect spherical shape can be obtained.
    • 本发明的目的是提供一种具有目标粒度,尖锐的粒度分布和均匀且完美的球形形状的金胶体的制造方法。 本发明涉及一种生产金胶体的方法,包括通过向第一金盐溶液中加入第一还原剂形成核胶体颗粒的成核步骤; 以及通过向核胶体粒子的溶液中添加第二金盐和第二还原剂来生长核胶体的生长步骤,其特征在于,所述生长步骤至少进行一次; 使用柠檬酸盐作为第一还原剂,使用抗坏血酸作为第二还原剂; 并且在添加第二金盐的同时进行生长步骤中的抗坏血酸盐的添加。 根据本发明的金胶体的制造方法,可以获得具有尖锐的粒度分布和均匀且完美的球形的金胶体。