CERTIFICATE OF ANALYSIS
COLLOIDAL COATED SILVER CONCENTRATE
Supplier:
Noble Elements LLC, 1621 Central Ave., Cheyenne, WY, 82001
Sample Description:
Stable aqueous dispersion silver nanoparticles coated with natural resin. Nominal particle size: 10 ± 2 nm Nominal silver concentration is 2.0 ± 0.05 wt.%
Sample Appearance:
Odorless, dark brown liquid
CAS#:
7440-22-4
Lot/Batch Number:
072315
Manufacture Date:
07/23/18
Country of Origin:
United States of America
Product Specification
Initial Silver content
(ICAP)
2.0 ± 0.2 wt%
Average particles size
FESEM histogram
10 ± 2 nm
UV-Vis Range
λmax (UV-Vis)
400-404 nm
UV-Vis Plasmon Actual
Absorbance max
401 nm
Sample analysis
*Silver content
(ICAP)
2.00 wt%
Average particles size
FESEM histogram
10. 0 nm
UV-Vis
λmax
401 nm
UV-Vis
Absorbance at 550nm/ Absorbance max
0.06
Silver Is True Colloidal
Silver Metallic Silver Ionic Silver
100% trace
Silver Nanoparticles Do Not Clump
Particles stay dispersed as testified by lack of background Uv-Viz absorbtion above 530-550 nm.
Size of particles
Average particles size by FESEM histogram
10 ± 2 nm
Contaminants:
Absent (zero)
Heavy Metals:
Absent (zero)
Impurities:
Absent (zero)
Microbiology:
Not Tested
Contaminant analysis by ICAP (Inductively Coupled Atomic Plasma) – resolution 50 ppb.
Results: All inorganic elements absent. Undetectable.
Field Emission Scanning Electron Microscopy (FESEM) Results:
Direct Realistic Image of Product
Coated Silver Emission Electronic Microscopy
The ONLY realistic visualization of nanoparticles
Uniform 10nm particles are seen
Competition Analysis By UV-Viz Spectrometry:
Results: 3 competitors samples contain only ionic silver (no silver particles exists of any sizel) and 2 competitors samples contain coarse, clumpy, uncoated, unsafe colloidal silver.
Coated Silver contains small, highly uniform, coated 10 nm particles.
Particles are not clumped and contain no impurities.