University of Alaska Fairbanks
Nutrient Analytical Facility

Providing marine and freshwater nutrient analysis

We provide the most accurate and precise data possible for nitrate, nitrite, phosphate, silicic acid, and ammonium.

Analyses are carried out on frozen samples based on protocols described in the GO-SHIP Repeat Hydrography nutrient manual.

Considerations for sample submission

  • Price per sample: $20. Sample analysis includes nitrate, nitrite, phosphate, silicic acid, and ammonium values.

    • We are unable to analyze acidified samples or those poisoned with mercuric chloride.

  • Analysis requires a 30 mL sample minimum.
    Recommended collection protocols

  • We require a minimum of two weeks' notice prior to submitting samples. This ensures that reagents, reference materials, and standards are available for the number of samples being submitted.

  • Samples must be shipped frozen. Please contact us for shipping recommendations, or to arrange pickup at the Alaska Air Cargo facility in Fairbanks.

Instrumentation includes two 5-channel continuous segmented flow analyzers manufactured by Seal Analytical—the AA3 and the QuAAtro39. These systems have low detection limits and high sample throughput.

Contact the UAF Nutrient Analytical Facility

Mette Kaufman
Ana Aguilar-Islas

Lab Phone: 907-474-6760

To submit samples

  1. Download and complete the Sample Submittal form.

  2. Email the completed form to both:

  3. Schedule sample analysis

  4. Organize sample shipment in consultation with either
    Ana Aguilar-Islas or Mette Kaufman

    • Lab Phone: 907-474-6760