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1E - Aqua Regia - ICP

0.5 g of sample is digested with aqua regia for 2 hours at 95 ° C.  The sample is cooled then diluted with deionized water. The samples are then analyzed using a Varian ICP for the 35 element suite. QC for the digestion is 15% for each batch, 2 method reagent blanks, 6 in-house controls, 8 sample duplicates and 5 certified reference materials. An additional 20% QC is performed as part of the instrumental analysis to ensure quality in the areas of instrumental drift.

 

 

Code 1E Elements and Detection Limits (ppm)

Element

Detection

Limit

Upper

Limit

Ag

0.2

100

Cd

0.5

2,000

Cu

1

10,000

Hg 1 10,000

Mn

2

100,000

Mo

2

10,000

Ni

1

10,000

Pb

2

5,000

S+

0.001%

20%

Zn

1

10,000

 

 

Notes:   

Extraction of of each element by Aqua Regia Digestion is dependent on mineralogy.

+ Sulphide sulphur and soluble sulphates are extracted.  

Assays are recommended for values which exceed the upper limits


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