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.

CERTIFICATE OF ANALYSIS CERTIFICATE OF ANALYSIS CERTIFICATE OF ANALYSIS