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Schedule of fees

Last revised April 20, 2004
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Page contents: (click to skip down)

*[Institutional Purchase Orders]

*[Mass spectrometry]

*[Plant/soil total C, total N]

*[Colorimetry]

*[Atomic absorption spectrophotometry]

 


Purchase Orders

In general we don't need to see an actual copy of your institution's purchase order before beginning your work, but will be content if you state in your sample shipment cover letter that the P.O. exists and is number such-and-such.


(Icon) Stable Isotope Analysis

Available analytes:

*Plant [nitrogen-15 assay]

*Soil [nitrogen-15 assay]

*Plant [carbon-13 assay]

*Soil [carbon-13 assay]

Prices (nonprofit clients only):

 
basic analysis            $7.50 per sample ($15.00 per sample for enriched sample material)
 
drying, grinding           5.50  "    "
 
weighing ug subsample      4.50  "    "
 
tin combustion capsule     0.50  "    "
 

N.B., prices for stable isotope analysis include charges for necessary [sample preprocessing]: oven-drying each sample, ball-milling it to a fine powder, manually weighing out a small subsample to microgram accuracy and enclosing this in an ultrapure combustion capsule. Clients may choose to provide any or all of this preprocessing themselves at a corresponding reduction in price.

This laboratory pays for all standards, calibrants and QC/recovery check samples described in our [Instrument calibration] document.


(Icon) Total C and Total N Analysis

Available analytes:

*Plant [total N assay]

*Soil [total N assay]

*Plant [total C assay]

*Soil [total C assay]

Prices (nonprofit clients only):

 
basic analysis            $3.00 per sample
 
drying, grinding           5.50  "    "
 
weighing ug subsample      4.50  "    "
 
tin combustion capsule     0.50  "    "
 

N.B., prices for total C/N analysis include charges for necessary [sample preprocessing]: oven-drying each sample, ball-milling it to a fine powder, manually weighing out a small subsample to microgram accuracy and enclosing this in an ultrapure combustion capsule. Clients may choose to provide any or all of this preprocessing themselves at a corresponding reduction in price.

We always run the elemental analyzer in dual-element mode; total C and total N data are provided for all samples at the single per-sample price given above.

This laboratory pays for all standards, calibrants and QC/recovery check samples described in our [Instrument calibration] document.


(Icon) Colorimetric Analysis

Available analytes:

*[Colorimetric assay, nitrate-N]

*[Colorimetric assay, ammonium-N]

*[Colorimetric assay, orthophosphate-P]

*[Water total N digest]

*[Soil 2M-KCl nitrate-N extract]

*[Soil 2M-KCl ammonium-N extract]

*[Plant total P digest]

*[Water total P digest]

*[Soil total P digest]

*[Soil orthophosphate-P extract]

Prices (nonprofit clients only):

 
basic analysis            $ 3.00 per sample per analyte
 
all extracts or digests     8.50 per extract

Samples must be free of turbidity and particulate matter. Any such substances must be removed before analysis by filtering or centrifugation. Samples arriving here with significant amounts of particulates may require hand-filtering at an additional cost of $2.00 per sample.

This laboratory pays for all standards, calibrants and QC/recovery check samples described in our [Instrument calibration] document.


(Icon) Atomic absorption spectrophotometry

Available analytes:

-Calcium:

*Plant [dry ash/double-acid extraction]

*Water [Ca dissolved/total partitioning]

*Soil [double-acid extraction]

*[Flame-AA assay for Ca]

-Magnesium:

*Plant [dry ash/double-acid extraction]

*Water [Mg dissolved/total partitioning]

*Soil [double-acid extraction]

*[Flame-AA assay for Mg]

-Potassium:

*Plant [dry ash/double-acid extraction]

*Water [K dissolved/total partitioning]

*Soil [double-acid extraction]

*[Flame-AA assay for K]

Prices (nonprofit clients only):

 
basic analysis                             $ 3.00 per sample per analyte
 
all extracts or digests                      8.50 per extract
 

This laboratory pays for all standards, calibrants and QC/recovery check samples described in our [Instrument calibration] document.


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