
Gold nanoparticles, 0.05 mg/mL aq. colloidal solution, 20 nm
Colloidal solution in water, 0,05 mg/mL Average particle size: 20±3 nm (other sizes available upon request) pH ca. 8,0.
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can be supplied at higher Au-concentrations too (*Au concentration in colloid according to extractive photometric determination with 1-(2,4,6-trichlorophenyl)-4,4,6-trimethyl- (1H,4H)-2-Pyrimidinethiol, see M. A. ANUSE et al., Talanta. Vol. 32, No. 10, pp. 1008-1010, 1985) Optical density at maximum after dilution x 30 times: 0.5± 0.01 Particle size, average (TEM): 14±3 nm Adsorption maximum position: 524 nm ± 2 nm.

Au concentration: 0,05 mg/mL (corresponds to 0,01% HAuCl4), aq. solution Admixtures, %: tannic acid < 0,01; sodium citrate < 0,04.

Au concentration: 0,05 mg/mL (corresponds to 0,01% HAuCl4), aq. solution Admixtures, %: tannic acid < 0,01; sodium citrate < 0,04.

Au concentration: 5 mg/mL, aq. solution Admixtures: citrate, cell-culture bovine gelatine.