School of Earth Sciences
Stanford University 

 


Plant Tissue and Soil Analyses

Test Description

Instrument

Cost per hour

Samples per hour

Sample Size

Notes

Total Nitrogen – Kjeldahl

DA

20

30

1 mL

c

Nitrate-N & Nitrite-N (2N KCl extract)

DA

20

30-45

1 mL

 

Nitrite-N (2N KCl extract)

DA

20

30-45

1 mL

 

Ammonium-N (2N KCl extract)

DA

20

30-45

1 mL

 

Total Carbon/Nitrogen

EA

20

10

4-30 mg

d

  1. User must prepare and digest samples, unless otherwise coordinated with EM1 technicians.  The EM1 facility has a digestion block available for use.  Digested samples must be run in the facility.

  2. Sample size reflects sample that is dried and ground to pass through 1mm sieve.

* Prices subject to change without notice

 

 

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