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TAMU Soil Characterization Laboratory

TAMU Soil Characterization Laboratory

TAMU Soil Characterization Laboratory

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Lab Services

Price List

Our prices no longer include 100% replication.

Prices are now on a per replicate basis to better align with our typical requests. Note: A minimum of 10% replication is typical for quality assurance purposes.

If you would like to request for samples to be analyzed, please select the appropriate form below.

Initial Soil Processing Fees


Typical Sample Grinding 


Grinding sample to 2-mm sieve size with low coarse fragments that take < 1 hour to grind 
$10


Difficult Sample Grinding

Grinding sample to 2-mm sieve size with high coarse fragments that take > 1 hour to grind 
$20


Plant, Manure, or Soil Digestion for Elemental Analysis


HNO3 digestion of 50 samples or more
$14


Soil Nutrient Extraction

Mehlich III extraction of 50 samples or more
$11


Aqueous Filtration


Preparation for analysis of 50 or more aqueous samples with solid contaminant 
$4
For Sample Sets Smaller than 50 Samples

Sample sets smaller than 50 samples will be held until a sample set of 50 can be assembled. If the data is needed before a group of 50 can be made, the expedited rates below will apply.


Expedited Plant, Manure, or Soil Digestion for Elemental Analysis


HNO3 digestion of , 50 samples
$30


Expedited Soil Nutrient Extraction

Mehlich III extraction of < 50 samples
$25


Expidited Aqueous Filtration


Preparation for analysis of< 50 aqueous samples with solid contaminant 
$19
Physical Measurements

Bulk Density


Bulk Density – Saran Method


Average of 3 clods includes COLE & 1/3 bar water content – Note requires long turnaround times
$46


Bulk density field samples

Requires a known volume of sample to be sent
$8
Gypsum Percentage

These samples must be ground to a 2-mm sieve size. If samples are sent without grinding to a 2-mm sieve size, processing fees (above) will be applied.


Gypsum Percentage


$31
Particle Size-Pipette Method

These samples must be ground to a 2-mm sieve size. If samples are sent without grinding to a 2-mm sieve size, processing fees (above) will be applied.


Basic Texture Class

Includes total % sand, silt, and clay only
$50


Full Particle Size Distribution


Includes 5 sand-size fractions from very coarse to very fine, fine silt, and fine clay beyond basic texture analysis categories
$72
Water Content


Air Dry 


$8


One Reference Point

1/10, 1/3, 1, 2, 5, 10, or 15 bar
$35


Available Water Capacity


2 Reference points
$70
Wet Aggregate Stability


SLAKES


$15
Chemical Measurements

Ammonium Oxalate Extraction

These samples must be ground to a 2-mm sieve size. If samples are sent without grinding to a 2-mm sieve size, processing fees (above) will be applied.


Ammonium Oxalate Extracted Fe, Al, Si


$44
Calcium Carbonate Equivalent

These samples must be ground to a 2-mm sieve size. If samples are sent without grinding to a 2-mm sieve size, processing fees (above) will be applied.


Chittick’s Test


Determination of carbonates and sieving
$116
Cation Exchange Capacity

These samples must be ground to a 2-mm sieve size. If samples are sent without grinding to a 2-mm sieve size, processing fees (above) will be applied.



Cation Exchange Capacity



Cation exchange capacity by sodium acetate/ammonium acetate extraction
$40



Small Batch or Expedited Cation Exchange Capacity
 

Cation exchange capacity by sodium acetate/ammonium acetate extraction less than 50 samples that cannot wait to be grouped
$125
Elemental Analysis
Carbon and Nitrogen

These samples must be ground to a 2-mm sieve size. If samples are sent without grinding to a 2-mm sieve size, processing fees (above) will be applied.



Total Carbon/ Total Nitrogen 


Combustion method  
$25



Inorganic Carbon


Pressure calcimetry method
$18

Organic Carbon

Includes total carbon and inorganic carbon to calculate organic
$30



Permanganate Oxidizable Carbon


POxC > 80 samples
$5


Inorganic Nitrogen


NH4+ and NO3– by colorimetric methods > 80 samples
$6
For Sample Sets Smaller Than 80 Samples

Sample sets smaller than 80 samples will be held until a sample set of 80 can be assembled. If the data is needed before a group of 80 can be made, the expedited rates below will apply.




Small Batch or Expedited Permanganate Oxidizable Carbon


POxC less than 80 samples that cannot be grouped with other samples 
$33


Small Batch or Expedited Inorganic Nitrogen

NH4+ and NO3– by colorimetric methods less than 80 samples that cannot wait to be grouped
$22
Metals, metalloids, P, S, I

These analyses require samples to be in aqueous solutions. If samples are not sent in aqueous solutions, sample processing fees (above) will be applied.



ICP-OES Analysis 1-5 Elements


Analysis of 1-5 elements for 50 or more samples   
$18



ICP-OES Analysis 6-10 Elements


Analysis of 6-10 elements for 50 or more samples  
$19



ICP-OES Analysis 11-20 Elements


Analysis of 11-20 elements for 50 or more samples 
$21
For Sample Sets Smaller Than 50 Samples

Sample sets smaller than 50 samples will be held until a sample set of 50 can be assembled. If the data is needed before a group of 50 can be made, the expedited rates below will apply.



Expedited ICP-OES Analysis 1-5 Elements


Analysis of 1-5 elements for less than 50 samples that cannot wait to be grouped
$86




Expedited ICP-OES Analysis 6-10 Elements


Analysis of 6-10 elements for less than 50 samples that cannot wait to be grouped
$90



Expedited ICP-OES Analysis 11-20 Elements


Analysis of 11-20 elements for less than 50 samples that cannot wait to be grouped
$98
Exchangeable Aluminum

These samples must be ground to a 2-mm sieve size. If samples are sent without grinding to a 2-mm sieve size, processing fees (above) will be applied.


Potassium Chloride Exchangeable Aluminum


$35
Extractable Bases

These samples must be ground to a 2-mm sieve size. If samples are sent without grinding to a 2-mm sieve size, processing fees (above) will be applied.


Ammonium Acetate Method


Extractable Na, K, Ca, Mg
$31
Free Iron Oxide

These samples must be ground to a 2-mm sieve size. If samples are sent without grinding to a 2-mm sieve size, processing fees (above) will be applied.


Citrate-Dithionite Method


$28
CO2 and other Greenhouse Gases


Greenhouse Gas Analysis

CO2, CH4, and N2O samples run on GC-FID/ECD of 50 or more samples 
$7


Expedited Greenhouse Gas Analysis

Sample sets smaller than 50 samples will be held until a sample set of 50 can be assembled. If the data is needed before a group of 50 can be made, this expedited rate will apply.
$30
pH

These samples must be ground to a 2-mm sieve size. If samples are sent without grinding to a 2-mm sieve size, processing fees (above) will be applied.


pH


2:1 water to soil ratio other ratios by request
$11
Water Soluble Cations and EC

These samples must be ground to a 2-mm sieve size. If samples are sent without grinding to a 2-mm sieve size, processing fees (above) will be applied.



Water Soluble Cations


Determination of water soluble Na, K, Ca, Mg and EC from a saturated pasts
$40



Electrical Conductivity
 

Only EC from a saturated paste
$24
Biological Measurements


24-Hour Soil Respiration 


CO2 Burst test incubation and GC analysis
$12


Expedited 24-Hour Soil Respiration 


Sample sets smaller than 50 samples will be held until a sample set of 50 can be assembled. If the data is needed before a group of 50 can be made, this expedited rate will apply.
$30

If you would like to request services that are not listed, contact us here.

Request Forms

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