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If your browser does not automatically redirect you in a few seconds, click here to go to the new page. Institute of Ecology Stable Isotope Laboratory
(IMAGE: Stable Isotope/Soil Biology Laboratory Banner)
The Stable Isotope/Soil Biology Laboratory of the University of Georgia Institute of Ecology offers a wide variety of analytical services to researchers associated with any bona-fide nonprofit research organization. 

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*** We are now accepting samples for total organic carbon analysis (TOC)  on the laboratory's new Shimadzu  TOC-5000A
Total Organic Carbon Analyzer with ASI-5000A Auto Sampler.

Standard runs indicate detection limits are within 10 parts per billion for low concentration level-high sensitivity analysis.   Sample throughput is greatly increased with the addition of the ASI-5000A  Auto Sampler.   For samples with concentrations greater than 1 part per million, up to 70 samples may be analyzed per day.   For more information please send an e-mail message or phone (706) 542-6023.

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Contents of this page: (click topic to skip down)
I. Analyses arranged by sample type:
* [Plant tissue analysis]
* [Water analysis]
* [Soil analysis]
II. Analyses arranged by major process:
* [Stable isotope mass spectrometry]
* [Continuous flow anion colorimetry]
* [micro-Dumas combustion elemental analysis]
* [Flame atomic absorption spectrophotometry]
III. Submission of samples:
* [Sample collection and preservation]
* [Sample shipment and accounting]
* [Quality assurance and control]
* [Fee schedule and paperwork]
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I. Laboratory capabilities arranged by sample material:

(Icon) Plant Tissue Analysis
* Carbon-13: [Mass spectrometry, 13C]

* Nitrogen-15: [Mass spectrometry, 15N]
* Total Carbon: [micro-Dumas combustion assay, TC]
* Total Nitrogen: [micro-Dumas combustion assay, TN]
- Total Phosphorus:
* Extract -[Ash/double acid extraction]

* Analysis -[Colorimetric assay, TP]
* Metals: [Flame atomic absorption spectrophotometry]
(Icon) Water Analysis
* Nitrate: [Colorimetric assay, NO3]

* Ammonium: [Colorimetric assay, NH4]
* Orthophosphate: [Colorimetric assay, PO4]
- Total Nitrogen:
* Digest -[Persulfate digest]

* Analysis -[Colorimetric assay, TN]
- Total Phosphorus:
* Digest -[Persulfate digest]

* Analysis -[Colorimetric assay, TP]
* Metals: [Flame atomic absorption spectrophotometry]
(Icon) Soil Analysis
* Carbon-13: [Mass spectrometry, 13C]

* Nitrogen-15: [Mass spectrometry, 15N]
* Total Carbon: [micro-Dumas combustion assay, TC]
* Total Nitrogen: [micro-Dumas combustion assay, TN]
- Nitrate:
* Extract -[2M-KCl extract]

* Analysis -[Colorimetric assay, NO3]
- Ammonium:
* Extract -[2M-KCl extract]

* Analysis- [Colorimetric assay, NH4]
- Phosphate:
* Extract -[Double acid extract]

* Analysis -[Colorimetric assay, PO4]
- Total Phosphorus:
* Digest -[Persulfate digest]

* Analysis -[Colorimetric assay, TP]
* Metals: [Flame atomic absorption spectrophotometry]
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II. Laboratory capabilities arranged by major process:

(Icon) Stable isotope mass spectrometry
* [Stable Isotopes]: research, notation, math
* [Available analytes]
* [Introduction]
* [Measurement notation]
* [Tracing and Fractionation]
* [Standard materials and calibrants]
* [Applications and current research]
* [Mass Spectrometry]: operation and sample prep
* [Isotope ratio mass spectrometry]
* [Standards and calibration]
* [Sample preparation]
(Icon) Continuous flow anion colorimetry
* [Automated colorimetric methods]: General overview
* [Available analytes]
* [Introduction - basic principles]
* [Segmented vs. laminar flow]
* [Standard materials and calibrants]
* [Sample preparation]
(Icon) micro-Dumas combustion elemental analysis
* [Dumas combustion methods]: General overview
* [Available analytes]
* [Overview of technique]
* [Calibration and reference materials ]
* [Sample prep considerations]
* [Combustion capsule formation]
(Icon) Atomic absorption spectrophotometry
* [Metals analysis methods]: General overview
* [Available analytes]
* [Overview of technique]
* [Specific sample considerations]
* [Sample requirements]
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III. Submission of samples:

(Icon) [Sample collection, preservation, processing]
(Icon) [Sample shipment]
(Icon) [Quality assurance and control]
(Icon) [Fee schedule and paperwork]
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Please send questions concerning any of this material to:
Stable Isotope/Soil Biology Laboratory

Institute of Ecology
University of Georgia
Athens GA 30602 USA
706-542-6023
[sisbl@www.uga.edu] for email concerning laboratory operation

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