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

CERTIFICATE OF ANALYSIS

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.

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