Gold nanoparticles：

GNPS-005-50         Gold nanoparticles 5 nm diameter, O.D. 3, 50 ml

GNPS-010-50         Gold nanoparticles 15 nm diameter, O.D. 3, 50 ml

GNPS-030-50         Gold nanoparticles 30 nm diameter, O.D. 3, 50 ml

GNPS-040-50         Gold nanoparticles 40 nm diameter, O.D. 3, 50 ml

GNPS-060-50         Gold nanoparticles 60 nm diameter, O.D. 3, 50 ml

GNPS-080-50         Gold nanoparticles 80 nm diameter, O.D. 3, 50 ml