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8 - Coltan XRF

Samples not requiring rare earths can be analyzed by fusion with lithium metaborate/tetraborate in platinum crucibles with the molten glass cast into a glass disc in platinum crucibles. These glass discs are analyzed by XRF. Generally low Ta2O5 detection limits can’t be achieved with this package and the INAA technique is recommended for tantalum.

 

Code 8 – Coltan XRF  

Oxide

Detection

Limit (%)

Fe2O3 (T)

0.01

Nb2O5

0.003

P2O5

0.01

Ta2O5

0.003

SnO2

0.003

ThO2

0.005

U3O8

0.005

WO3

0.003

Y2O3

0.003

ZrO2

0.003

 

INAA option

Element

Detection

Limit (ppm)

Ce

3

Eu

0.2

La

0.5

Lu

0.05

Nd

5

Sm

0.1

Ta

0.5

Th

0.2

U

0.5

Yb

0.2

 

Major Oxide Option

Element

Detection

Limit (%)

Al2O3

0.01%

CaO

0.01

Cr2O3

0.01

Co3O4

0.005

CuO

0.005

K2O

0.01

MgO

0.01

MnO

0.001

Na2O

0.01

NiO

0.003

SiO2

0.01

TiO2

0.01

V2O5

0.005

LOI

0.01

 


Activation Laboratories Ltd. | 41 Bittern Street, Ancaster, Ontario, L9G 4V5, Canada | TF: +1.888.228.5227
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