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7 - TerraSol Selective Extractions

A 0.75 g sample of -60 mesh B soil horizon material is leached in TerraSol matrix at 30°C for 1 hour. Two controls for every 49 samples are leached in the same procedure.

 

The solutions are analyzed on a Perkin Elmer ELAN 6000, 6100 or 9000 ICP/MS.  One matrix blank is analyzed per 49 samples. Two controls are run at the beginning and end of the group of 49 samples. Duplicate samples are leached and run every 10 samples.

 

Code 7 TerraSol Selective Extraction Elements and Detection Limits (ppb)

Element

Detection Limit

Element

Detection Limit

Element

Detection Limit

Element

Detection Limit

Ag

300

Er

2

Mn

100

Se

100

Al

2 ppm

Eu

0.5

Mo

5

Sm

2

As

40

Fe

10 ppm

Nb

0.2

Sr

5

Au

5

Ga

5

Nd

6

Ta

1

Ba

20

Gd

20

Ni

100

Te

60

Be

20

Ge

2

Pb

5

Th

1

Bi

1

Hf

1

Pd

20

Tl

40

Ca

50 ppm

Hg*

10

Pr

2

Tm

1

Cd

10

Ho

0.5

Pt

10

U

0.5

Ce

2

In

2

Rb

5

V

100

Co

5

K

20 ppm

Re

0.5

W

10

Cr*

200

La

10

Ru

10

Y

0.2

Cs

0.5

Li*

500

Sb

2

Yb

2

Cu

20

Lu

0.5

Sc*

300

Zn

40

Dy

2

Mg

10 ppm



Zr

1

 

Note:    
 *Values are Semi-Quantitative

 

 

Code 7

Add-Ons

pH of leach solution

Conductivity of leach solution

pH + Conductivity


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